William G. Eberhard
Staff Scientist
e-mail: william.eberhard@gmail.com
Address: Escuela de Biologia,
Universidad de Costa Rica, Ciudad Universitaria,
Costa Rica
Telephone: +506 2228.0001
FAX: +506 2228.0001
Publications
Publications by William G. Eberhard in STRI Bibliography
Research Interests
Animal behavior, sexual selection, cryptic female choice.
Current Research
My current research centers on phenomea related to sexual selection, especially sexual selection by cryptic female choice. Current and planned projects include differences in the patterns of behavior of genitalia during copulation in congeneric species and in different conspecific populations of sepsid flies, how to distinguish coerced from
induced copulations, mating systems in sepsid flies, and events during copulation that affect sperm precedence in a spider.
Other current projects include manipulation of host web construction behavior by ichneumonid wasps that parasitize orb-weaving spiders, the allometry of the internal sheath that functions to receive the horns of opponents during battles in a horned weevil, stimuli affecting the decisions made by male and female medflies during courtship and the effects of inadvertant selection during mass rearing on courtship behavior, and internal maps of orb webs during web construction in an orb-weaving spider.
Education and Degrees
B.A., Harvard College, 1965.
Ph. D., Harvard University, 1969.
Selected Bibliography
1. Attack behavior of diguetid spiders and the origin of prey wrapping in spiders. Psyche 74: 173-181 (1967).
2. Computer simulation of orb web construction. Am. Zool. 9(1):229-238 (1969).
3. Laboratory photography of spider webs. Am. Zool. 9(1): 97-101 (1969). (2nd author with R. M. Langer)
4. Review of Witt, P. N., C. Reed, and D. B. Peakall "A Spider's Web." Science 164: 941-942 (1969) (1st author with H. W. Levi).
*5. The natural history of the fungus gnats Leptomorphus bifasciatus and L. subcearuleus (Diptera: Mycetophilidae). Psyche 77(3): 361-383 (1971).
*6. The predatory behavior of two wasps, Sceliphron caementarium (Sphecidae) and Ageneoides humilis (Pompilidae), on the orb weaving spider Araneus cornutus (Araneidae).Psyche 77(2):243-254 (1971).
7. Senile web patterns in Uloborus diversus (Araneae: Uloboridae). Develop. Psychobiol. 4: 249-254 (1971).
8. The ecology of the web of Uloborus diversus (Araneae: Uloboridae). Oecologia 6: 328-342 (1971).
9. The web of Uloborus diversus (Araneae: Uloboridae). J. Zool., Lond. 166: 417-465 (1972).
*10. Altruistic behavior in a sphecid wasp: support for kin selection theory. Science 175(4028): 1390-1391 (1972).
*11. Observations on the biology of Achaeranea tesselata (Araneae: Theridiidae). Psyche 79: 176-180.
12. Stabilimenta on the webs of Uloborus diversus (Araneae: Uloboridae) and other spiders. J. Zool., Lond. 171: 367-384 (1973).
13. The ability of a spitting spider, Scytodes hebraica, to capture flying prey. Ent. News 84: 97-08 (1973).
14. Interacciones ecologicas entre el chinche Antiteuchu s tripterus (Pentatomidae) y dos parasitos de sus huevos, Trissolcus bodkini y Phanuropsis semiflaviventris (Scelionidae). Mem. I Convencion A.C.E.A.C.E. (Bucaramanga, Col.) (1973).
15. Maternal behavior in a South American Lyssomanes. Bull Brit. arachnol. Soc. 3(2): 51 (1974).
16. Ecologia de la hormiga Azteca trigona (Hymenoptera: Formicidae). Mem. II Congr. Soc. Col. Ent. (1974) (2nd author with O.Kafury).
17. Insectos y hongos que atacan al chinche del cacao, Antiteuchus tripterus (Pentatomidae). Rev. Fac. Agron.Medellin. (1974).
18. The "inverted ladder" o rb web of Scoloderus sp. and the intermediate orb of Eustala (?) sp. (Araneidae). J. Nat. Hist. 9(1): 93-106 (1974).
19. The natural history and behaior of the wasp Trigonopsis cameronii Kohl (Sphecidae). Trans. R. Ent. Soc. Lond. 125(3):295-328 (1974).
20. The ecology and behavior of a subsocial pentatomid bug and two scelionid wasps: strategy and counterstrategy in a host and its parasites. Smith. Contrib. Zool. 205: 1-39 (1975).
21. "Rectangular orb" webs of Synotaxus (Araneae: Theridiidae). J. Nat. Hist. 11: 501-507.
*22. The webs of newly emerged Uloborus diversus and of a male Uloborus sp. (Araneae: Uloboridae). J. Arachnol. 4(3): 201- 206 (1976).
23. Photogaphy of orb webs in the field. Bull. Brit. Arachnol. Soc. 3(7): 200-204 (1976).
24. Physical properties of sticky spirals and their connections: sliding connections in orb webs. J. Nat. Hist. 10: 481-488 (1976).
25. Artificial spider webs. Bull. Brit. Arachnol. Soc. 4(3): 126-128 (1977).
26. Mating swarms of a South American Acropygia (Hymenoptera: Formicidae). Ent. News 89: 14-16 (1977).
*27. Aggressive chemical mimicry by a bolas spider. Science 198: 1173-1175 (1977).
28. Natural history of immature stages of the microlepidopteran Stathmopoda filicula Clarke. Ent. News 89: 54-55 (1977).
*29. The fighting behavior of male Golofa porteri beetles (Scarabeidae: Dynastinae). Psyche 84: 292-298 (1977).
30. La ecologia y comportamiento del cucarron de la cana, Podischnus agenor (Dynastinae). Rev. Col. Ent. (1977).
31. Web robbery by mature male araneid spiders. Bull. Brit. Arachnol. Soc. 4(5): 228-230 (1978) (1st author with M. Barreto and W. Pfizenmaier).
32. Webs of Miagrammopes in the Neotropics (Araneae: Uloboridae).Psyche 85(1): 1-23 (1978) (2nd author with Y. D. Lubin and G. G. Montogomery).
33. The function of horns in Podischnus agenor (Dynastine) and other bettles. in Blum, M and Blum, N. (eds.) Sexual Selection and Reproductive Competition in Insects. Academic Press, N.Y. pp. 231-258(1979).
*34. Rates of egg production by tropical spiders in the field. Biotropica 11(4): 292-300 (1979).
35. Review of Merrett, P. (ed.) "Arachnology." Science 204: 399 (1979).
36. La biologia de la arana colonial Philoponella semiplumosa (Uloboridae). Rev. Biol. Trop. 27: 231-240 (1979) (2nd author with E. Lahmann).
37. Factors affecting numbers and kinds of prey caught in artificial spider webs, with considerations of how orb webs trap prey. Bull. Brit. Arachnol. Soc. 5(1): 29-38 (1979) (2nd author with P. Chacon)
*38. Argyrodes attenuatus: a web that is not a snare. Psyche 86(4): 407-413 (1979).
39. Spider and fly play cat and mouse. Nat. Hist. 89(1): 56-61 (1980).
40. Horned beetles. Sci. Am. 242(3): 166-182 (1980).
*41. Persistent stickiness of cribellate threads. J. Arachnol. 8(3): 283 (1980).
42. Intraorganism competition involving eukaryotic organelles. Ann. N. Y. Acad. Sci. 361: 44-53 (1980).
*43. Evolutionary consequences of reproductive competition involving intracellular organelles. Quart. Rev. Biol. 55(3): 231-249 (1980).
*44. The natural history and behavior of the bolas spider Mastophora dizzydeani sp. n. (Araneidae). Psyche 87(3-4): 143-169 (1980).
*45. The single line web of Phoroncidia studo Levi (Araneae: Theridiidae): a prey attractant? J. Arachnol. 9:229-232 (1981).
46. Notes on the natural history of Taczanowskia sp. (Araneae: Araneidae). Bull. Brit. Arachnol. Soc. 5(4): 175-176 (1981).
47. Construction behavior and the distibution of tensions in orb webs. Bull. Brit. Arachnol. Soc. 5(5): 189-204 (1981).
48. The natural history of Doryphora sp. (Coleoptera, Chrysomelidae) and the function of its sternal horn. Ann. Ent. Soc. Am. 74(5): 445-448 (1981).
*49. Male dimorphism in a horned beetle: making the best of a bad lot. Am. Nat. 119: 420-426 (1982).
50. Grooming in flies. in Matthews, J. and Matthews, R. Laboratory Exercises in Insect Behavior, Westview Press, N.Y. pp. (1982) (1st author with J. Matthews)
51. Behaviour of the assassin spider Chorizopes sp. (Araneidae). J. Bombay Nat. Hist. Soc. (1982).
*52. Behavioral characters for the higher classification of orb-weaving spiders. Evol. 36(5): 1067-1095 (1982).
*53. The "orb plus cone" webs in Uloboridae (Araneae) with a description of a new genus and four new species. Psyche 89: 29-64 (1982)(2nd author with Y. D. Lubin, B. Opell, and H. W. Levi).
54. Chivalry in pholcid spiders. Behav. Ecol. Sociobiol. 13(3): 189-195 (1983) (1st author with D. Briceo).
55. Review of Robinson, M. and Robinson, B. Comparative studies of the courtship and mating behavior of tropical araneid spiders. J. Arachnol. 11: 458-459 (1983).
*56. Resting postures of orb-weaving uloborid spiders. J. Arachnol. 11:369-376 (1983) (2nd author with B. Opell).
*57. The use of artificial traps to estimate prey available to web-weaving spiders. Ecol. 64: 1655-1658 (1983) (2nd author with J. Castillo).
58. Behavior of adult bottlebrush weevils (Rhinostomus barbirostris) (Coleoptera: Curculionidae). Rev. Biol. Trop. 31: 233-244 (1983).
59. Behavior and ecology of four species of Modissimus and Blechroscelis (Pholcidae). Rev. Arachnol. 6: 29-36 (1985) (1st author with D. Briceo)
60. Sexual Selection and Animal Genitalia. Harvard University Press, Cambridge (1985).
*61. The "sawtoothed" orb of Eustala sp., with a discussion of the ontogenetic patterns of change in web design in spiders. Psyche 92: 105-118 (1985).
62. Pupation in mycetophyllid flies: a correction. Psyche 92(4) (1985).
63. The behavioral ecology of the damselfly Hetaerina macropus (Calopterygidae). Odonatologica 15: 51-60 (1985).
64. Why are genitalia good species characters? Proc. 9 Int. Arachnol. Congr. Panama. p. 53-59 (1986).
65. Trail-line manipulation behavior as a character for higher level spider taxonomy. Proc. 9 Int. Arachnol. Congr. Panama. p. 49-51 (1986).
66. Effect of orb web geometry on prey interception and retention. in Shear, W. (ed.) Spider Webs and Spider Behavior, Stanford Univ. Press, Palo Alto (1986) pp. 70-100.
67. Subsocial behavior in the spitting spider Scytodes intricata (Araneae, Scytodidae). Rev. Arachnol. 7: 35-40 (1986).
68. Proceedings of the Ninth International Congress of Arachnology (ed., 1st author with Y. D. Lubin and B. C. Robinson) (1986).
69. The hunting behavior of the wasp Stictia signata (Sphecidae) J. Kans. Ent. Soc. 59: 604-608 (with T. Philippi) (1986).
70. Possible mutualism between females of the subsocial membracid Polyglypta costata (Homoptera, Membracidae). Behav. Ecol. Sociobiol. 19: 447-453 (1986).
*71. Ontogenetic changes in the web of Epeirotypus sp. (Araneae, Theridiosomatidae). J. Arachnol. 14: 125-128 (1986).
72. Seleccion sexual y el comportamiento de los insects. Miscellanea (Soc. Col. Ent.): 16-28 (1986).
73. Hub construction by Leucauge mariana (Araneae, Araneidae). Bull. Brit. Arachnol. Soc. 7:128-132. (1987)
74. Runaway sexual selection. Nat. Hist. 96(12):4-8. (1987)
*75. Orb webs and construction behavior in Anapidae, Symphytognathidae, and Mysmenidae. J. Arachnol. 14(3):339-356. (1987)
*76. How spiders initiate airborne lines. J. Arachnol. 15(1):1- 10. (1987)
*77. Maternal behavior in Apollophanes punctipes (O. Pickard- Cambridge) (Araneae, Thomisidae). J. Arachnol. 14(3):398. (1987)
78. The effect of gravity on temporary spiral construction by the spider Leucauge mariana (Araneae, Araneidae). J. Ethol. 5(1):29-36. (1987)
79. Behavior of the dimorphic horned beetle Ageopsis nigricollis (Coleoptera, Scarabeidae, Dynastinae). J. Kans. Ent. Soc.60(3):504-509. (1987)
80. Construction behavior of non-orb weaving cribellate spiders and the evolutionary origin of orb webs. Bull. Br. Arachnol. Soc.). 7:175-178. (1987)
81. Genetic and environmental effects on wing polymorphisms in two tropical earwigs (Dermaptera: Labiidae). Oecologia 74:253-255. (1987) (2nd author with D.Briceño)
*82. Memory of distances and directions moved as cues during temporary spiral construction in the spider Leucauge mariana (Araneae: Araneidae). J. Ins. Behav.1:51-66. (1988)
83. Aspectos ecológicos del manejo integrado de plagas. (Mem. Seminario sobre Manejo Integrado de Plagas. M.A.G./C.A.T.I.E., San Jose). (1988)
*84. The behavior and natural history of the group-living pompilid wasp Auplopus semialatus. J. Ins. Behav. 1:247-260. (3rd author with W. Wcislo and M. J. W. Eberhard). (1988)
*85. Paradoxical post-genitalic contact courtship in Himatigera nigrifemo¬ralis (Diptera: Stratiomy¬idae). Psyche 95:115-122. (1988)
86. Combing and sticky silk attachment behavior by cribellate spiders and its taxonomic implications. Bull Br. Arachnol. Soc. 7:247-251. (1988)
*87. Behavioral flexibility in orb web construction: effects of silk supply in different glands. J. Arachnol. 16:303-320 (1988).
88. Group nesting in two species of Euglossa bees. J. Kansas Ent. Soc. 61:406-411. (1989)
89. Why do plasmids carry some genes and not others? Plasmid. 21:167-174 (1989).
90. Effects of horizontal vs. vertical orientation of orb webs on prey retention. Bull. Br. Arachnol. Soc. 8:45-48 (1989).
*91. Imprecision in the behavior of larval fungus gnats and the origin of new behavior patterns in animals. J. Ins. Behav. 3:327-357. (1990)
92. Animal genitalia and female female choice. Am. Sci. 78:134-141. (1990)
*93. Use of host aggregations as mating sites by Chrysagria alticophaga (Diptera: Sarcophagidae). Psyche 96:45-47. (1990)
94. Club fights in Macromerus weevils. J. Kans. Ent. Soc. 62:421-429. (1990) (2nd author with W. Wcislo)
95. Niche expansion in the spider Wendilgarda galapagensis (Araneae, Theridiosomatidae) on Cocos Island. Rev. Biol. Tropical 37:163-168 (1990).
*96. Evolution of bacterial plasmids and levels of selection. Quart. Rev. Biol. 65:3-22 (1990).
97. Copulatory courtship in the wasp Eumenes consorbrinus (Hymenoptera, Eumeninae). J. Kans. Ent. Soc. 63:343-344 (1990).
98. Genitalic courtship in Acmaeodera impluviata (Coleoptera: Buprestidae). J. Kans. Ent. Soc. 63:345-346 (1990).
99. Inadvertant machismo? (Letter to Editor) Trends Ecol. Evol.5:263 (1990).
*100. Function and phylogeny of spider webs. Ann. Rev. Ecol. Syst. 21:341-372 (1990).
*101. Early stages of orb construction by Philoponella, Leucauge, and Nephila spiders (Araneae: Uloboridae and Araneidae). J. Arachnol. 18:205-234 (1990).
*102. Low rates of prey capture in the field by the tropical web-building spider Tengella radiata (2nd author with M. Santana, C. Bassey, and D. Briceño). Biotropica 22:305-309 (1990).
103. Review of "Insect Defenses" (Evans and Schmidt eds.). J. Ins. Behav. 4:410-411 (1991).
104. Notes on the natural history of Wendilgarda galapagensis (Araneae, Theridiosomatidae) Bull. Br. Arachnol. Soc. 8:246-248 (1991).
*105. Dimorphism among males of horned beetles and earwigs common, and the question of developmental constraints. (1st author withE. Guitierrez) Evol. 45:18-28 (1991).
106. Copulatory courtship and cryptic female choice in insects. Biol. Rev. 66:1-31 (1991).
*107. Chrosiothes tonala (Araneae, Theridiidae): a web-building spider specializing on termites. Psyche 98:7-19 (1991).
108. Artificial insemination: can appropriate stimulation improve success rates? Med. Hypoth. 36:152-154 (1992).
109. Notes on the natural history and ecology of Physocyclus globosus (Araneae, Pholcidae). Bull. Br. Arachnol. Soc.9:38-42 (1992).
*110. Web construction behavior of Modisimus sp. (Araneae, Pholcidae). J. Arachnol. 20:25-34 (1992).
*111. Species isolation, genital mechanics, and the evolution of species-specific genitalia in three species of Macrodactylus (Coleoptera, Scarabeidae, Melolonthinae). Evol. 46:1774-1783 (1992).
112. Copulatory courtship and notes on the natural history of Ochthera occidentalis Clausen (Diptera: Ephydridae). Pan-Pac. Entomol. 68:261-267 (1992).
113. Copulatory courtship and genital mechanics in three species of Macrodact¬ylus (Coleoptera Scarabaeidae Melolonthidae). Ethol. Ecol. Evol. 5:19-63 (1993).
114. Functional significance of secondary sexual male characters in three species of Macrodactylus (Coleoptera, Scarabeidae, Melolonthinae). Coleop. Bull. 47:53-60 (1993).
*115. Evaluating models of sexual selection by female choice; genitalia as a test case. Am. Nat. 142:564-571 (1993).
116. Copulatory courtship and genitalic mesh in seven species of Phyllophaga (Coleoptera, Scarabeidae, Melolonthinae). J. Nat. Hist. 27:683-717 (1993).
117. The natural history and behavior of web parasites of the spider Tengella radiata: the spider Mysmenopsis tengellacompa sp. n.(Mysmenidae) and the bug Lipokophila eberhardi sp. n. (Plokiophilidae) (1st author with N. Platnick and T. Schuh). Novitates (AMNH) 3065:1-17 (1993).
118. Correlation between genitalic morphology and mating systems in spiders. J. Linn. Soc. 50:197-209 (1st author with S. Guzman-Gomez and K. Catley) (1993).
*119. Natural history and behavior of two species of Altica beetles (Coleoptera: Chrysomelidae) Psyche 100:93-119 (1st author with R. Achoy, M. C. Marin, J. Ugalde) (1993).
*120. Ultrastructure of cribellate silk of nine species in eight families and possible taxonomic implications (Araneae: Amaurobiidae, Deinopidae, Desidae, Dictynidae, Filistatidae, Hypochilidae, Stiphidiidae, Tengellidae). J. Arachnol. 21:161-174 (1st author with F. Pereira) (1993).
121. Functions of male genitalic surstyli in the Mediterranean fruit fly, Ceratitis capitata (Diptera: Tephritidae). J. Kans. Ent. Soc. 66:427-433 (1st author with F. Pereira) (1994).
122. Copulatory courtship in the two species of Xyonysius bugs (Hermiptera, Lygaeidae). J. Kans. Ent. Soc. 67:37-45. (2nd author with R. L. Rodriguez)(1994)
*123. Evidence for widespread courtship during copulation in 131 species of insects and spiders, and implications for cryptic female choice. Evol. 48:711-733. (1994)
124. The functional significance of male cercus morphology in 13 species of tropical earwigs (Dermaptera: Forficulidae, Labiidae, Carcinophoridae, Pygidicranidae). Smithson. Contrib. Zool. 555:1-63. (2nd author with D. Briceño). (1995)
*125. The web and building behavior of Synotaxus ecuadorensis (Araneae, Synotaxidae). J. Arachnol. 23:25-30. (1995)
126. Sexual selection by cryptic female choice on male seminal products - a new bridge between sexual selection and reproductive physiology. Trends Ecol. Evol. 10:493-496.(1st author with C. Cordero) (1995)
127. Web construction behavior in Australian Phonognatha and the phylogy of nephiline and tetragnathid spiders (Araneae, Tetragnathidae). Aust. J. Zool 43:313-364.(2nd author with G. Hormiga and J. Coddington) (1995)
128. The process of intromission in the medfly, Ceratitis capitata (Diptera, Tephritidae). Psyche 102:101-122.(first author with F. Pereira) (1995)
129. Copulation behavior inside and outside the beetle Macrohaltica jamaicensis. (Coleoptera: Chrysomelidae) (1st author with S. Kariko). J. Ethol. 14:59-72.( 1996)
130. Female Control: Sexual Selection by Cryptic Female Choice. Princeton Univ. Press, Princeton, N. J. (1996)
*131. Courtship behavior of male medflies (Ceratitis capitata; Diptera: Tephritidae) in captivity. Fla. Ent. 79:1-15(3rd author with D. Briceño and D. Ramos) (1996)
132. Sexual behavior and the enlarged hind legs of male Megalopus armatus (Coleoptera, Chrysomelidae). J. Kans. Ent. Soc. 69:1-8. (1st author with M. C. Marin) (1996)
133. Functional morphology of male genitalic surstyli in the dungflies Achisepsis diversiformis and A. ecalcarata (Diptera: Sepsidae). J. Kans. Ent. Soc.69:43-60. (1st author with F. Pereira) (1996)
134. Sexual selection by cryptic female choice in insects.pp.32-57 In J.C. Choe and B. J. Crespi, eds., The Evolution of Mating Systems in Insects and Arachnids. Cambridge Univ. Press, Cambridge (1997)
135. Graverobbing by male Eulaema bees.J. Kans. Ent. Soc. 70:66.(1997)
136. Courtship, genitalia, and genital mechanics in Physocyclus globosus (Araneae, Pholcidae) Canad. J. Zool 74:905-918. (2nd author with B. Huber)(1997)
*137. One size fits all? Relationships between the size and degree of variation in genitalia and other body parts in twenty species of insects and spiders. Evolution 52:415-431. (1st author with 4 others) (1998)
138. Possible links between embryology, lack of innervation and the evolution of male genitalia in spiders. Bull. Brit. Arachnol. Soc. 11:73-81. (1st author with B. Huber) (1998)
139. Female roles in sperm competition.pp.91-116 In T. Birkhead and A.Møller (eds). Sperm competition and sexual selection (Academic Press). (1998)
140. Medfly courtship duration: a sexually selected reaction norm changed by crowding. Ethol. Ecol. Evol. 10: 369-382. (second author with D. Briceño) (1998)
*141. Courtship, copulation, and sperm transfer in Leucauge mariana (Araneae, Tetragnathidae), with implications for higher classification. J. Arachnol. 26:342-368. (first auther with B. A. Huber) (1998)
142. Functional significance of the capitate supra-fronto-orbital bristles of medflies (Ceratitis capitata) (Diptera: Tephritidae) J. Kans. Ent. Soc.71:164-174. (3rd author with V. Mendez and D. Briceño) (1998)
143. Reproductive behavior of Glyphidops flavifrons and Nerius plurivittatus (Diptera: Neriidae). J. Kans. Ent. Soc. 71:89-107.(1999)
*144. Mortal mimicry in the fly Plocoscelus sp. (Diptera: Micropezidae). Biotropica.31: (1999)
145. Copulation and sperm transfer in Archisepsis flies (Diptera: Sepsidae) and the evolution of their intromittent genitalia. Studia Dipt. 5: 217-248. (first author with B. A. Huber) (1998)
146. Sexual behavior of Acanthocephala declivis guatemalana (Hemiptera, Coreidae) and the allometric scaling of their modified hind legs. Ann. Ent. Soc. Amer. 91: 863-871. (1998)
147. Aggressive behavior in medflies (Ceratitis capitata) and its modification by mass rearing (Diptera: Tephritidae). J. Kans. Ent. Soc. 72:17-27. (third author with R. D. Briceño and D. Ramos) (1998)
148. Importancia de la elección críptica de la hembra para la etología. Etología 6:1-8. (1999)
149. Mating systems of sepsid flies and sexual behavior away from oviposition sites by Sepsis neocynipsea (Diptera: Sepsidae). J. Kans. Entomol. Soc. 72:87-88 (1999).
*150. Don’t forget the biology: a reply to Green. Evolution 53:1624-1627 (first author with B. Huber and R. L. Rodriguez) (1999)
151. Sexual behavior and sexual selection in the medfly, Ceratitis capitata. In Fruit flies (Tephritidae): phylogeny and evolution of behavior. Pp. 457-487 in M. Aluja and A. Norrbom (eds) CRC Press, Del Ray, FL (2000)
*152. Ritual jousting by horned Parisoschoenus expositus weevils (Coleoptera, Curculionidae, Barydinae). Psyche 103:55-84. (first author with J. Maurcio Garcia-C.) (2000)
153. Behavior and reproductive status of Microsepsis armillata flies away from oviposition sites. Ann. Ent. Soc. Am. 93:966-971.(2000)
*154. Criteria for distinguishing cryptic female choice. Evolution 54:1047-1050. (2000).
155. Possible Fisherian changes in female choice criteria in a mass-reared strain of the medfly, Ceratitis capitata (Diptera: Tephritidae). Ann. Ent. Soc. Am. 93: (second author with R. D. Briceño) (2000)
*156. Spider manipulation by a wasp larva. Nature 406:255-256. (2000)
*157. Size-specific defensive structures in a horned weevil confirm a classic battle plan: avoid fights with larger opponents. Proc. Roy. Soc. Lond. B 267:1129-1134.(first author with M. Garcia and J. Lobo) (2000)
158. Breaking the mold: behavioral imprecision and evolutionary innovation in Wendilgarda spiders (Araneae, Theridiosomatidae). Ecol. Ethol. Evol. 12:223-235. (2000)
159. The natural history and behavior of Hymenopimecis argyraphaga (Hymenoptera: Ichneumonidae) a parasitoid of Plesiometa argyra (Araneae: Tetragnathidae). J. Hymenop. Res. 9:220-240. (2000)
160. Trolling for water striders: active searching for prey and the evolution of reduced webs in the spider Wendilgarda sp. (Araneae: Theridiosomatidae) J. Nat. Hist. 35:229-251. (2000)
161. Male wing positions during courtship by Mediterranean fruit flies (Ceratitis capitata) (Diptera: Tephritidae). J. Kans. Ent. Soc. 73:111-115. (second author with R. D. Briceño) (2000)
*162. Species-specific genitalic copulatory courtship in sepsid flies (Diptera, Sepsidae, Microsepsis). Evolution 55:93-102. (2001)
163. Courtship before and during copulation, and multi-stage transfer of material to the female’s wings in Microsepsis armillata (Diptera: Sepsidae). J. Kans. Ent. Soc. 74:70-78. (2001)
169. Multiple origins of a major novelty: moveable abdominal lobes in male sepsid flies (Diptera: Sepsidae) and the question of developmental constraints. Evol. & Develop. 3(3):206-222. (2001)
164. The functional morphology of species-specific clasping structures on the front legs of male Archisepsis and Palaeosepsis flies (Diptera, Sepsidae) Zool. J. Linn. Soc. 133:335-368. (2001)
*165. Under the influence: webs and building behavior of Plesiometa argyra (Araneae: Tetragnathidae) when parasitized by Hymenoepimecis argyraphaga (Hymenoptera: Ichneumonidae). J. Arachnol. 29:354-366. (2001)
166. Genitalic behavior during copulation in Hybosciara gigantea (Diptera: Sciaridae) and the evolution of species-specific genitalia. J. Kans. Ent. Soc. 74:1-9. (2001)
167. Restraint with constraints: a reply to Wagner and Müller. Evol. and Develop. 4:7-8 (2002)
168. Genitalia. In Encyclopedia of Evolution. M. Pagel (ed.). Oxford Univ. Press. Pp.416-417 (2002)
169. Cryptic female choice. In Encyclopedia of evolution. M. Pagel (de.). Oxford Univ. Press pp. 217-220 (2002)
170. Courtship in the medfly Ceratitis capitata includes probable tactile stimulation with the male’s aristae. Entomol. Exp. Appl. 102:221-228. (second author with R. D. Briceño) (2002)
171. The behavior and natural history of Hybosciara gigantea (Diptera: Sciaridae). J. Kans. Ent. Soc. 75: 8 - 15. (first author with Carmen Flores) (2002)
172. Geographic variation in the buzzing songs of wild and mass-reared male medflies (Diptera: Tephritidae: Ceratitis capitata). Florida Entomol. 85: 32-40. (second author with R. D. Briceño, J. Vilardi, and P. Liedo) (2002)
*173. Decisions during courtship by male and female medflies (Ceratitis capitata, Tephritidae, Diptera). Florida Entomol. 85: 15-32. (second author with R.D. Briceño) (2002)
174. Female resistance or screening? Male force vs. selective female collaboration in intromission in sepsid flies and other insects. Rev. Biol. Trop. 50:485-505 (2002)
175. Use of front legs as signals, weapons, and spore collectors in the flies Chymomyza mycopelates and C. exophthalma (Diptera: Drosophilidae). Can. Ent. 134:667-687. (2002)
176. The relation between aggressive and sexual behavior and allometry in Palaeosepsis dentatiformis flies (Diptera: Sepsidae). J. Kans. Entom. Soc. 75:317-332 (2002)
*177. Physical restraint or stimulation? The function(s) of the modified front legs of male Archisepsis diversiformis (Diptera, Sepsidae). J. Ins. Behav. 15: 831-850. (2002)
178. Sexual behavior of male Themira minor (Diptera, Sepsidae), and movements of the male’s sternal lobes and genitalic surstyli. Can. Ent. 135:569-581 (2003)
179. Sexual conflict and female choice. TREE 18:438-439. (first author with Carlos Cordero) (2003)
180. Sexual conflict and female choice. J. Evol. Biol. 16:1-6 (second author with Carlos Cordero) (2003)
*181. Tortoise beetle genitalia and demonstrations of a sexually selected advantage for flagellum length in Chelymorpha alternans (Chrysomelidae, Cassidini, Stolaini). Pp. 739-748 In P. Jolivet, J. A. Santiago-Blay and M. Schmitt (eds) New developments on the biology of Chrysomelidae SPB Academic Publishing, The Hague, The Netherlands (third author with V. Rodriguez and D. Windsor) (2003)
*182. Substitution of silk stabilimenta for egg sacs by Allocyclosa bifurca (Araneae: Araneidae) suggests that silk stabilimenta function as camouflage devices. Behav. 140:847-868. (2003)
*183. Male-female conflicts and genitalia: failure to confirm predictions in insects and spiders. Biol. Rev. 79:121-186. (2004)
*184. Rapid divergent evolution of sexual morphology: comparative tests of sexually antagonistic coevolution and traditional female choice. Evolution 58:1947-1970 (2004).
*185. Physical mesh between male and female genitalia in four species of Drosophila (Diptera: Drosophilidae). Ann. Ent. Soc. Am. 97:1007-1017. (2004) (first author with Natalia Ramirez)
*186. Why study spider sex: special traits of spider facilitate study of sperm competition and cryptic female choice. J. Arachnol. 32:545-556 (2005)
*187. Apparent stimulatory function of species-specific male genitalic setae in Aelurus septentrionalis (Hymenoptera: Tiphiidae). J. Kans. Ent. Soc. 77:837-839.(2004).
*188. Comparative allometry and sexual behavior of four fruit fly species in the tribe Ceratitidini (Diptera: Tephritidae). J. Kans. Entomol. Soc. 78:20-33. (2005) (second author with R. D. Briceño and S. Quilici)
*189. Threading a needle with reinforced thread: intromission by the medfly Ceratitis capitata (Diptera: Tephritidae). Can. Entomol. 137:174-181. (2005)
190. Los machos del cabellito del agua, Hetaerina, en Golfito: porque pelean tanto? pp. 131-138 In F. Bolaños and J. Lobo (eds) Historia natural de Golfito. INBio Press, San Jose. (2005)
191. Las moscas Sepsidae: la atraccion de lo feo. Pp. 139-148 In F. Bolaños and J. Lobo (eds). Historia natural de Golfito. INBio Press, San Jose. (2005)
*192. Evolutionary conflicts of interest: are female sexual decisions different? Am. Nat. 165: S19-S25 (2005)
*193. The interaction between antagonistic sexual selection and mate choice in the evolution of female responses to male traits. Evol. Ecol. 19:111-122. (second author with Carlos Cordero) (2005)
*194. Sexual morphology of male Sepsis cynipsea (Diptera: Sepsidae): lack of support for sexually antagonistic coevolution and lock and key hypotheses. Can. Entomol. 137:551-565 (2005)
*195. Dispersal by Ummidia spiderlings (Araneae: Ctenizidae): ancient roots of aerial webs and orientation? J. Arachnol. 34: 254-257. (2005)
*196. Sexually reversed copulatory courtship roles and possible nuptial feeding in the soldier beetle Ditemnus acantholobus (Coleoptera, Cantharidae. J. Kans. Ent. Soc. 79:13-22 (2006)
*197. Sexually antagonistic coevolution in insects is associated with only limited morphological diversity. J. Evol. Biol. 19:657-681 (2006)
*198. Tie them up tight: Philoponella vicina spiders mangle and kill their prey by wrapping. Naturwissenschaften 93:251-254. (2006) (first author with G. Barrantes and J.-L. Weng)
*199. Fitting together: copulatory linking in some Neotropical Chrysomelidae. Rev. Biol. Trop. 54:829-842. (second author with W. Flowers) (2006).
*200. Copulatory dialogue: Female spiders sing during copulation to influence male genitalic movements. Anim. Behav. 72:413-421. (second author with A. Peretti and R. D. Briceño)(2006).
*201. Caution, webs in the way! Possible functions of stabilimenta in Gasteracantha cancriformis (Araneae: Araneidae). J. Arachnol. 34:448-455. (2nd author with 9 others)(2006)
203. Camouflage and chemical defense in a bolas spider Mastophora caesariata sp. n (Araneae, Araneidae). Bull. Brit. Arachnol. Soc. 13:337-340. (1st author with H. W. Levi). (2006)
*204. Male courtship behavior in Ceratitis capitata (Diptera: Tephritidae) that have received aromatherapy with ginger root oil. Fla. Entomol. 90: 175-179 (2nd author with R. D. Briceño and T. Shelly) (2006)
205. The mystery of how spiders extract food from prey without masticating. Bull. Brit. Arachnol. Soc. 13:372-376. (first author with J.-L. Weng and G. Barrantes) (2006)
*206. Courtship behavior of different wild strains of Ceratitis capitata (Diptera: Tephritidae). Fla. Entomol. 90: (2nd author with 4 others) (2007).
*207. Web construction and modification by Achaearanea tesselata (Araneae, Theridiidae). J. Arachnol. 34:511-523. (second author with K. Jürger) (2006).
*208. Feeding by Philoponella vicina (Araneae, Uloboridae) and how uloborid spiders lost their poison glands. Can. J. Zool. 84:1752-1762. (third author with J.-L. Weng and G. Barrantes) (2006)
209. Stabilimentum of Philoponella vicina (Araneae: Uloboridae) and Gasteracantha cancriformis (Araneae: Araneidae): evidence against a prey attractant function. Biotropica 39:216-220 (2006).
*210. Appearances deceive: female “resistance” behaviour in a sepsid fly is not a test of the male’s ability to hold on. Ethol. Ecol. Evol. 19:27-50. (second author with Martha Lucia Baena) (2006)
211. Radial organization in the web of the pisaurid Thaumasia sp. (Araneae: Pisauridae). Bull. Brit. Arachnol. Soc. 14:49-53. (2007)
212. Escolha criptica pela fêmea e fenômenos associados em aranhas. P.115-136 In M. O. Gonzaga, H. F. Japyassú and A. J. Santos (eds.) Ecología e Comportamento de Aranhas. Rio de Janeiro: Editora Interciencia. ISBN 9788571931640. (2007)
*213. Swarming behavior of two parasitic wasps, Leurus caeruliventris (Hymenoptera: Ichneumonidae) and Conura sp. (Hymenoptera: Chalcididae) at the same site. J. Kans. Entomol. Soc. 80:255-258. (2007)
*214. Miniaturized orb weaving spiders: behavioral precision is not limited by small size. Proc. Roy. Soc. Lond B 274:2203-2209 (2007)
*215. Evolution of prey wrapping behavior in spiders. J. Nat. Hist. 41:1631-1658. (second author with G.Barrantes) (2007)
*216. Copulation behavior of Glossina pallidipes (Diptera: Muscidae) outside and inside the female, and genitalic evolution. Bull. Ent. Res. (2nd author with R. D. Briceño and A. Robinson)
*217. Chaos from order: the evolution of web designs in theridiid spiders (Araneae, Theridiidae). Syst. Biodiv. (1st author with I. Agnarsson and H. W. Levi)
218. Araneus expletus (Araneae, Araneidae): another stabilimentum that does not function to attract prey. J. Arachnol.
219. Seasonal patterns of parasitism of the tropical spiders Theridion evexum (Araneae: Theridiidae) and Allocyclosa bifurca (Araneae: Araneidae) by the wasps Zatypogta petronae and Polysphincta gutfreundi (Hymenoptera: Ichneumonidae). Revista Biol. Trop. 56: (2nd author with G. Barrantes and J.-L. Weng) (2008)
*220. Static allometry and animal genitalia. Evolution (in press)
221. Vestiges of an orb-weaving ancestor? The “biogenic law” and ontogenetic changes in the webs and building behavior of the black widow spider Latrodectus geometricus (Araneae: Theridiidae). Ethol. Ecol. Evol. (in press) (1st author with Gilbert Barrantes andRuth Madrigal-Brenes)
220. Spider genitalia: precise maneuvers with a numb structure in a complex lock. Chapter in book “Evolution of primary sexual characters in animals” (in press) (J. Leonard and A. Cordoba, eds.) (first author with Bernhard Huber)
221. Genitalic evolution: theories and data. Chapter in book “Evolution of primary sexual characters in animals” (J. Leonard and A. Cordoba, eds.) (in press)
222. Genitalic stridulation during copulation in a species of crane fly, Tipula (Bellardina) sp. (Diptera: Tipulidae). Rev. Biol. Trop. (first author with J. K. Gelhaus) (in press)
223. Pitfalls in understanding the significance of genital allometry. J. Evol. Biol. (first author with R. L. Rodriguez and M. Polihronakis. J. Evol. Biol. (in press)