Geomydoecus costaricensis, from the Field Museum.

Belongs within: Phthiraptera.

The Trichodectidae are a group of lice found on mammals, characterised by a broadly oval body in both sexes, and short, thick legs with distally broadened tibiae, a terminal process and single claw.

<==Trichodectidae [Bovicolidae]
|–Lorisicola GE05
|–Werneckiella equi CM91
|–Felicola subrostratus CM91
|–Stachiella RD77
|–Thomomydoecus Price & Emerson 1972 GE05, BP04
|    |–T. barbarae GE05
|    |–T. minor GE05
|    `–T. wardii HN90
|–Bovicola R02
|    |–B. bovis CM91
|    |–B. caprae Gurlt 1843 CM91, T62 [=Damalinia caprae T62]
|    |–B. crassipes R02
|    `–B. ovis CM91
|–Damalinia C70
|    |–D. americana A71
|    |–D. bovis H74
|    |–D. equi C70
|    |–D. limbata (Gervais 1844) [=Bovicola limbatus] T62
|    `–D. ovis H74
|–Trichodectes GE05
|    |–T. canis CM91 [=Ricinus canis G20]
|    |–T. colobi Kellogg 1908 K08
|    |–T. inaequalis K08
|    |–T. latus G20
|    |–T. melis A71
|    `–T. octomaculatus GE05
`–Geomydoecus Ewing 1929 GE05, BP04
|–+–G. perotensis GE05
|  `–G. thomomyus GE05
`–+–+–G. chapini GE05
|  `–+–+–G. cherriei GE05
|     |  `–G. costaricensis GE05
|     `–+–G. panamensis GE05
|        `–G. setzeri GE05
`–+–+–G. nadleri GE05
|  `–G. trichopi GE05
`–+–G. expansus GE05
`–+–+–G. geomydis GE05
|  `–G. oklahomensis GE05
`–+–G. actuosi GE05
`–+–G. ewingi GE05
`–G. texanus GE05

*Type species of generic name indicated


[A71] Askew, R. R. 1971. Parasitic Insects. Heinemann Educational Books: London.

[BP04] Banks, J. C., & A. M. Paterson. 2004. A penguin-chewing louse (Insecta: Phthiraptera) phylogeny derived from morphology. Invertebrate Systematics 18: 89–100.

[C70] Calaby, J. H. 1970. Phthiraptera (lice). In: CSIRO. The Insects of Australia: A textbook for students and research workers pp. 376–386. Melbourne University Press.

[CM91] Calaby, J. H., & M. D. Murray. 1991. Phthiraptera (lice). In: CSIRO. The Insects of Australia: A textbook for students and research workers vol. 1 pp. 421–428. Melbourne University Press: Carlton (Victoria).

[G20] Goldfuss, G. A. 1820. Handbuch der Naturgeschichte vol. 3. Handbuch der Zoologie pt 1. Johann Leonhard Schrag: Nürnberg.

[GE05] Grimaldi, D., & M. S. Engel. 2005. Evolution of the Insects. Cambridge University Press: New York.

[HN90] Hafner, M. S. & S. A. Nadler. 1990. Cospeciation in host-parasite assemblages: comparative analysis of rates of evolution and timing of cospeciation events. Systematic Zoology 39 (3): 192–204.

[H74] Helson, G. A. H. 1974. Insect Pests: Identification, life history, and control of pests of farms, horticulture, gardens, and public health. A. R. Shearer, Government Printer: Wellington (New Zealand).

[K08] Kellogg, V. L. 1908. Wissenschaftliche Ergebnisse der Schwedischen Zoologischen Expedition nach dem Kilimandjaro, dem Meru und den Umgebenden Massaisteppen Deutsch-Ostafrikas 1905–1906 vol. 3 section 15. Corrodentia pt 4. Mallophaga. Almqvist & Wiksells Boktryckeri-A. B.: Uppsala.

[R02] Rasnitsyn, A. P. 2002. Superorder Psocidea Leach, 1815. In: Rasnitsyn, A. P., & D. L. J. Quicke (eds) History of Insects pp. 125–133. Kluwer Academic Publishers: Dordrecht.

[T62] Tendeiro, J. 1962. Estudos sobre malófagos: Revisão monográfica do género Columbicola Ewing (Ischnocera, Philopteridae). Memórias da Junta de Investigações do Ultramar, ser. 2, 32: 7–460.

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