BROSCINA

ROIG-JUÑENT, SERGIO, 2000, The Subtribes And Genera Of The Tribe Broscini (Coleoptera: Carabidae): Cladistic Analysis, Taxonomic Treatment, And Biogeographical Considerations, Bulletin of the American Museum of Natural History 2000 (1), pp. 1-90 : 21-22

KEY TO GENERA OF BROSCINA

1. Labial mentum bisetose............. 2

- Labial mentum quadrisetose................................. Sinobrosculus

2(1). Head with one supraorbital seta over each eye; pronotum with one or two lateral setae on each side................. 3

- Head with three or four supraorbital setae over each eye; pronotum with seven or eight lateral setae on each side........................... Chaetobroscus

3(2). Head with ventral surface with two deep transverse grooves or oblique foveae on each side of gula................. 4

- Ventral surface of head without such grooves or foveae................ 5

4(3). Submentum with six setae, a deep transverse sulcus on neck constriction; median lobe ventrally with ‘‘wings’’................................. Eobroscus

- Submentum with 8 to 10 setae; a shallow transverse sulcus on the neck constriction; median lobe without ‘‘wings’’............................. Zacotus

5(3). Elytron with parascutellar setiferous puncture at base of stria 2............. 6

- Elytron without parascutellar setiferous puncture................ Broscodera

6(5). Labial mentum with two paramedian round- ed foveae; pronotum with one lateral seta near middle............. Miscodera

- Labial mentum with ventral surface almost plane, not deeply impressed on each side of tooth; pronotum with two lateral setae on each side.................... 7

7(6). Submentum with a single seta on each side; border of pronotum with lateral expansions; hind trochanter without setae; elytra with supernumerary punctures; striae interruptes; fore and middle tarsomeres of males without adhesive vestiture......................... Craspedonotus

- Labial submentum with two or more setae on each side; border of pronotum without lateral expansions; hind trochanter with setae; elytra, if striate, with eight regular striae; fore and middle tarsomeres of males with adhesive vestiture....... 8

8(7). Temporal ridge complete; pronotum with a narrow lateral bead (fig. 33)... Broscus

- Temporal ridge obsolete, distinct only at the apical region; pronotum without lateral bead (fig. 93)........... Broscosoma