Tillinae
Creators: name: Burke, Alan F.
name: Leavengood, John M.
name: Zolnerowich, Gregory
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cleridae

description: Key to New World Tillinae genera updated and modified from Opitz (2002)
1. Frons with a pair of protruding horns arising immediately above eyes................................ Bostrichoclerus
- Frons without a pair of horns............................................................................ 2
2. Last antennomere as long as to much longer than length of preceding antennomeres combined (Fig. 1 -E); eyes strongly emar- ginate...................................................................................... Monophylla
- Last antennomere not enlarged, never as long as or longer than the length of preceding antennomeres combined, all antennom- eres approximately the same length (Figs. 1 A–D, 1-F); eyes emarginate (Figs. 2 -C, 2-D) or not....................... 3
3. Head subquadrate, enlarged; clypeus conspicuously wide; antennomeres 5–11 or 6–11 subquadrate, conspicuously wider than antennomeres 1–4 (Fig. 1 -G) or 1–5 (Fig. 1 -H); body relatively slender; elytra subparallel; integument smooth to glossy................................................................................................... Cylidrus
- Head not subquadrate, if conspicuously enlarged throughout its length, distal antennomeres approximately the same width as remaining antennomeres (Figs. 1 -A, 1-B, 1-D); body slender to robust; elytra subparallel or not; integument smooth to coarsely punctate............................................................................................. 4
4. Antennae strongly serrate (Fig. 1 -D) to pectinate (Fig. 1 -C).................................................... 5
- Antennae filiform (Fig. 1 -A) to moderately serrate (Fig. 1 -B)................................................... 7
5. Last antennomere as preceding antennomere in shape; antennomeres 4–10 strongly serrate (Fig. 1 -D); length of specimens approximately 10 mm or more...................................................................... Bogcia
- Last antennomere flattened laterally, ovoid; antennomeres 4–9 or 4–10 moderately serrate (Fig. 1 -F) to pectinate (Fig. 1 -C); length of specimens less than 8 mm ....................................................................... 6
6. Antennae composed of 11 antennomeres (Figs. 1 -F).................................................. Barrotillus
- Antennae composed of 10 antennomeres (Fig. 1 -C)................................................... Callotillus
7. Tarsal claws with one inner denticle (see Figs. 41, 44, 51 in Opitz, 2002)................................ Onychotillus
- Tarsal claws with two inner denticles (see Figs. 27–29 in Opitz, 2002)........................................... 8
8. Basal denticle of tarsal claw digitiform in shape (see Fig. 28 in Opitz, 2002)............................ Araeodontia
- Basal denticle of tarsal claw triangular in shape (see Figs. 27, 29 in Opitz, 2002)................................... 9
9. Elytral punctations coarse, extending to apex (Fig. 3 -B)............................................... Lecontella
- Elytral punctations feebly to moderately coarse, not extending to apex (Fig. 3 -A); if punctations extend to apex, then these are shallow and feebly impressed.......................................................................... 10
10. Diameter of ommatidia narrow (Figs. 2 -A, 2-B); integument in two colors: testaceous to ferruginous and brunneous to black; eyes weakly emarginate and elongate-ovoid, in lateral view much taller than wide (Fig. 2 -B); small species, length less than 8 mm ...................................................................................... Cymatoderella
- Diameter of ommatidia wide (Figs. 2 -C, 2-D); integument unicolored to variously colored; eyes weakly to moderately emarginate, in lateral view form variable, ranging from much taller than wide to almost round (Fig. 2 -D); species 4–40 mm in length..................................................................................... Cymatodera
description: Published as part of Burke, Alan F., Leavengood, John M. & Zolnerowich, Gregory, 2015, A checklist of the New World species of Tillinae (Coleoptera: Cleridae), with an illustrated key to genera and new country records, pp. 1-39 in Zootaxa 4059 (1) on pages 3-4, DOI: 10.11646/zootaxa.4059.1.1, http://zenodo.org/record/234970