Bothrideridae Robertson et al. 2015
Creators: name: Mcelrath, Thomas C.
name: Androw, Robert A.
name: Mchugh, Joseph V.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Bothrideridae

description: Key to the Nearctic genera of Bothrideridae (sensu Robertson et al. 2015) (Coleoptera: Coccinelloidea)
[modified from Stephan (1989) and Philips & Ivie (2002); see those references for figures of genera other than Antibothrus]
1. Procoxae separated by half or more than half the width of one procoxa; greatest width of pronotum less than greatest width of elytra; body generally flattened and wider................................................................. 2
1’’. Procoxae contiguous or nearly so; greatest width of pronotum about equal to greatest width of elytra; body generally subcylindrical, elongate, or narrow............................................................................. 4
2(1). Elytral costae interrupted or notched; each elytron with pair of conspicuous yellow callosities at or near mid length............................................................................................. Lithophorus Sharp
2’’. Elytral costae uninterrupted and even; elytra lacking yellow callosities.......................................... 3
3 (2”). First abdominal ventrite with distinct postcoxal lines extending beyond mid length of ventrite, usually nearly reaching the posterior margin; pronotal disc with pair of large, unusually shaped nodules bordered by deep grooves and separated by narrower groove............................................................................ Prolyctus Zimmerman
3’’. First abdominal ventrite with postcoxal lines at most vaguely indicated; pronotal disc not extremely modified, usually at most with median longitudinal depression........................................................ Bothrideres Dejean
4 (1”). Length greater than 9.0 mm; antennal club weakly 3-segmented; pronotal disc with well-developed, deep, median longitudinal groove, interrupted near middle; Pacific Northwest and California ............................. Deretaphrus Newman
4”. Length less than 6.0 mm; antennal club 2-segmented; pronotal disc variously modified, but if possessing groove never interrupted near middle; eastern and southern US............................................................... 5
5 (4”). Procoxae contiguous; scape and pedicel normal, not joined asymmetrically; terminal two antennomeres subequal in width.......................................................................................... Sosylus Erichson
5”. Procoxae narrowly separated; scape and pedicel joined asymmetrically, scape with pointed nodule; terminal antennomere narrower than penultimate (~ 2/3 as wide) (Fig. 1)................................................ Antibothrus Sharp
description: Published as part of Mcelrath, Thomas C., Androw, Robert A. & Mchugh, Joseph V., 2016, Antibothrus morimotoi Sasaji, an Old World cocoon-forming beetle (Coleoptera: Coccinelloidea: Bothrideridae) newly established in North America, pp. 323-330 in Zootaxa 4154 (3) on page 325, DOI: 10.11646/zootaxa.4154.3.7, http://zenodo.org/record/262622