Lophocaterini

JIŘÍ KOLIBÁČ, 2010, Trichocateres fasciculifer, a new genus and species of Trogossitidae: Lophocaterini (Coleoptera), Zootaxa 2353, pp. 34-42 : 35-36

Key to genera of the tribe Lophocaterini

1. Elytra with irregular punctation; lateral margins of pronotum broadly explanate, lateral edge sparsely denticulate .... ..................................................................................................................................................... Eronyxa Reitter, 1876

- Elytra regularly punctate; lateral margins of pronotum narrowly explanate, lateral edge almost entirely evenly rounded or densely denticulate .................................................................................................................................... 2.

2. Antenna 7- or 9-segmented.......................................................................................................................................... 3.

- Antenna 11-segmented................................................................................................................................................. 5.

3. Antenna 7-segmented, club 1-segmented; mandible with mola.................................................. Lycoptis Casey, 1890

- Antenna 9-segmented, club 2- or 3-segmented; mandible without mola................................................................... 4.

4. Antennal club 2-segmented; mandible with prostheca near base of mandible formed by tuft of long setae; submental area lacking concave or depressed area; wing with oblong radial cell ............................... Grynocharina Reitter, 1877

- Antennal club 3-segmented; mandible without penicillus or prostheca; submental area concave; wing with small triangular radial cell displaced downwards................................................................................. Peltonyxa Reitter, 1876

5. Lateral edge of pronotum densely denticulate; lacinia with one pigmented spine ................ Indopeltis Crowson, 1966

- Lateral edge of pronotum evenly rounded or at most finely undulating; lacinia with two or three pigmented spines ...................................................................................................................................................................................... 6.

6. Elytra with inconspicuous carinae; mola absent; ligula deeply emarginate; probably predatory. Larva: sensory appendix very short................................................................................................................... Promanus Sharp, 1877

- Elytra with conspicuous carinae; mola or remnant of mola present; ligula deeply or weakly emarginate; predatory ( Trichocateres n. gen.), herbivorous ( Lophocateres ), fungivorous ( Grynocharis ). Larva ( Lophocateres , Grynocharis ): length of sensory appendix about half or more than half of antennal segment 3 ........................................ 7.

7. Elytra with six carinae; tegmen without projecting phallobasic apodeme; lacinia with three pigmented, hooked spines; small species (less than 3 mm) ................................................................................. Lophocateres Olliff, 1883

- Elytra with five or four distinct carinae; tegmen with projecting phallobasic apodeme; different pattern of pigmented lacinial spines; larger species (above 5 mm) ............................................................................................................... 8.

8. Elytra with four distinct (higher) carinae and another three to four lower carinae among them; pronotum and elytra without tufts of long hairs, with short decumbent or semi-erect pubescence only, or without conspicuous pubescence; lacinia with two pigmented, hooked spines; tibial apical spur pattern 2–2–2; larger species (about 4.5–10.5 mm) .................................................................................................................................. Grynocharis Thomson, 1859

- Elytra with only five distinct carinae; pronotum and elytra with tufts of long, yellow-orange hairs; lacinia with three pigmented spines at apex in pattern 1+2, apical spine large and hooked, two other spines much smaller; tibial apical spur pattern 1–1–1; smaller species (about 5 mm) ....................................................................... Trichocateres n. gen.