Coleopterological Notices, VIL 397 



Body black or piceous-black, the legs pale; elytral pubescence quite long 

 and only feebly recurved; prothorax feebly conical, with the sides 

 broadly arcuate, becoming parallel near the base 54 parcum 



30 — Head large, nearly as wide as the prothorax 55 claTatum. 



Head smaller, much narrower than the prothorax, the latter more strongly 

 narrowed at apex 56 decipiens 



31 — Head transversely excavated in the male and strongly angulate laterally, 

 perfectly simple and of the normal form in the female 57 l>iceps 



Head concave toward the middle of the vertex in both sexes, feebly angulate 

 at the sides in the male...., 58 caviceps 



32 — Clypeal tooth rather well developed, narrow and acute; antennae stouter. 

 Larger, blackish in color, the hind femora but slightly less clavate; elytra 



longer, much more than twice as long as the prothorax 59 trinifer 



Small, testaceous, the four posterior femora less clavate; elytra smaller, not 

 more than twice as long as the prothorax 60 debilitans 



Clypeal tooth extremely minute, short and obtuse; antennal funicle much nar- 

 rower, slender. 

 Hind body obese, the elytra with a distinct subhumeral impression. 



61 trifldum 

 Hind body narrowly oval, the subhumeral impression almost wholly obso- 

 lete; size more minute 62 flllTUm 



33 — Larger species, distinctly more than 1 mm. in length; basal joint of the 

 hind tarsi more elongate 34 



Minute species, less than 1 mm. in length 46 



34 — Clypeus triangularly toothed at the middle; pronotum strongly, trans- 

 versely impressed near the basal margin 63 repiignans 



Clypeus not toothed, or not more than excessively feebly modified at the mid- 

 dle of the apical margin in a broadly rounded inequality 35 



35 — Pronotum without trace of subbasal impression ; tibial spur of the male 

 very long ; hind body strongly ventricose ; body black throughout. 



64 calcaratum 



Pronotum transversely impressed or biimpressed near the basal margin 36 



36 — Piceous or paler in color, with the elytra generally paler testaceous or 

 bright red 37 



Black throughout, the elytra sometimes with a scarcely perceptible piceous 

 tinge 44 



Dark rufo-testaceous, the elytra black or piceous-black 45 



3? — Apex of the first abdominal segment fringed vsdth scale-like porrect hairs, 

 or with a solid pale coriaceous border 38 



Apex of the first segment almost perfectly simple and normal 43 



3S — Terminal tibial process of the male split into two or three more slender 

 filaments 39 



Terminal process simple; elytral suture always beaded toward base, the bead 

 abruptly expanded at the basal margin 40 



39 — Antennae longer, with a stronger and more incrassate club ; subhumeral 

 impression feeble 65 Mfidum 



Annals N. Y. Acad. Sci., IX, April, 1897.— 27. 



