Leiodini,

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), Zootaxa 4741 (1), pp. 1-114: 74

publication ID

https://doi.org/10.11646/zootaxa.4741.1.1

publication LSID

lsid:zoobank.org:pub:2F901615-D948-4C68-81E9-75282F594BAF

DOI

http://doi.org/10.5281/zenodo.3797311

persistent identifier

http://treatment.plazi.org/id/4E4F5B3F-FFB2-8711-FF75-CCB9FA4BF512

treatment provided by

Plazi

scientific name

Leiodini
status

 

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