Leiodini
Creators: name: Peck, Stewart B.
name: Gnaspini, Pedro
name: Newton, Alfred F.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Leiodidae

description: Key to Genera of Leiodini of Latin America (modified from Peck et al., 1998a)
1a Mesosternum between mesocoxae oblique (but may bear angulate keel with vertical anterior edge) (the “ Leiodes genus group”)............................................................................................. 2
1b Mesosternum between mesocoxae nearly or quite vertical (the “ Cyrtusa genus group”).............................. 3
2a Mesosternum between mesocoxae carinate or with elevated keel which may be angulate in lateral view; sides of pronotum and elytra not ciliate................................................................................. Leiodes
2b Mesosternum between mesocoxae not carinate or keeled; sides of pronotum and elytra fringed with long hairs; Chile ........................................................................ Undescribed Genus of Newton and Leschen
3a Antenna of 11 segments with 3-segmented or interrupted 5-segmented club, segment 8 small and disc-shaped............ 4
3b Antenna apparently of 10 segments, with compact 3- or 4-segmented club........................................ 8
4a Antenna with 3-segmented club.................................................................. Incacyrtusa
4b Antenna with interrupted 5-segmented club................................................................. 5
5a Elytral stria 3 abruptly displaced laterally about 1/3 from base of elytron, striae 4 and 5 displaced to lesser extent; southern South America only........................................................................... Ovocyrtusa
5b Elytral striae more or less straight; widespread.............................................................. 6
6a Mesosternum between mesocoxae not carinate or keeled; mandibles edentate or with small tooth on left mandible only................................................................................................. Lionothus
6b Mesosternum between mesocoxae carinate or keeled; both mandibles or right mandible only with large tooth on inner edge.................................................................................................... 7
7a Mesosternum between mesocoxae rounded in ventral view, with fine median carina; each mandible with a tooth near middle of inner edge..................................................................................... Anogdus
7b Mesosternum between mesocoxae triangular in ventral view, with sharp vertical keel; right mandible with subapical tooth, left mandible edentate; widespread................................................... Undescribed Genus of Newton
8a Antenna actually of 11 segments, segment 8 minute and not visible in dried specimens; tibiae relatively slender.......... 9
8b Antenna truly of 10 segments; tibiae broad and shovel-like; metatibia with spines on external edge.................... 10
9a Right mandible with blunt tooth on anterior third....................................................... Cyrtusa
9b Right mandible with large triangular tooth at middle.............................................. Pseudolionothus
10a Antenna with 3-segmented club................................................................... Isoplastus
10b Antenna with 4-segmented club......................................................................... 11
11a Mesotibiae with strong spines on outer margin; metatibiae broad, with strong spines on outer margin; right mandible without tooth....................................................................................... Zeadolopus
11b Mesotibiae without large spines on outer margin; metatibiae slender, without strong spines on outer margin; right mandible toothed................................................................................... Parvocyrtusa
description: Published as part of Peck, Stewart B., Gnaspini, Pedro & Newton, Alfred F., 2020, Updated catalog and generic keys of the Leiodidae (Insecta: Coleoptera) of the Neotropical region (" Latin America ": Mexico, the West Indies, and Central and South America), pp. 1-114 in Zootaxa 4741 (1) on page 74, DOI: 10.11646/zootaxa.4741.1.1, http://zenodo.org/record/3772899