[August 1884. BULLETIN BROOKLYN ENTOM. SOC. VOL. VII. 57 
SYNOPSES OF COLEOPTERA. 
PRIONUS, “eof. 
This genus and Homaes¢hests constitute the group Prioniz, all the 
species of which resemble one another closely in superficial appearance. 
The body is relatively broader than in any of the other genera and gives 
the insects a stout or heavy aspect. 
The mandibles are moderate in size, acute and similar in the sexes. 
The eyes are large and coarsely granulated. The antennz are heavily 
imbricate in the males, more slender and serrate in the females. The 
thorax as noted above is tridentate in Przonus. unidentate in Hom- 
@sthests. 'Yhe elytra are broadly rounded at apex, coriaceous, punctate, 
and ornamented with raised lines. The legs are slender, compressed 
and punctate. ‘The species in color are a uniform brown or black. 
SYNOPTIC TABLE OF PRIONUS. / 
Sensitive surface antenne ,j' and © reticulate with fine elevated lines. 
Antennal joints 12; soles hind tarsi densely pubescent. 
IBIKpiiea, allt WARS Imes: Waker Wann NONE ES ccc o sce tcscccobon cenvudacos laticollis. 
Elytra at base wider than thorax. 
First two thoracic teeth prominent not reflexed................... pocularis, 
First two thoracic teeth very acute and reflexed................ californicus, 
Antennal joints more than 12; soles hind tarsi with scattered hairs. 
PRMEMA lj OIMS COTS © Gi iUS—20. .. . INGO een so och alos. is c. .... imbricornis. 
AOMton MM OMISdOe25ar ci 27-30)... Gee lacs. idleck so sae so es fissicornis, 
Sensitive surface ({' uniform. 
Antennal joints 12; soles of hind tarsi concave and sparsely pubescent. . palparis, 
SYNOPTIC TABLE OF HOMAESTHESIS. 
Sensitive surface <j’ uniform; soles of hind tarsi concave and sparsely pubescent; an- 
tennze 13-14 jointed. 
Thorax strongly punctured, pubescent, lateral tooth very obtuse,... -emarginatus. 
Thorax slightly punctured, not pubescent, lateral tooth acute.............. integer, 
The tables are exhibited in the above form for the purpose of 
showing clearly the close relation between the genera, and also the inter- 
mediate position which pa/paris occupies. 
P, laticollis, Diuny Whe, 1773, p: Saute, 25) Elarris,! Ins. Mass “pilz9, 
brevicornis, Fab. Syst, El. II, p. 260; Beauv. Ins. Afr. et Am. p. 216; Lec. Journ. 
Ac, Phil, ser, 2, II, p. 109. 
