34 
6 . 
8 . 
9 - 
io. 
n. 
12 . 
I 3 - 
14. 
* 5 - 
16. 
* 7 - 
18. 
19. 
20 
21 . 
22. 
Journal New York Entomological Society. [Voi. IV - 
Larger (8-io mm.), elytral striae distinctly punctured, prothorax punctured from 
side to side at base .avida. 
Smaller (6 mm.), elytral striae nearly smooth, thorax not punctured at base. 
arenarfa. 
Thorax sinuate on the sides near base, hind angles rectangular or prominent. .7 
Thorax not sinuate on sides near base, hind angles obtuse...9 
Elytra more parallel, more than three times as long as the prothorax. 
rufimanus. 
Elytra more rounded on sides, less shining, less than three times as long as pro. 
thorax.8 
Sides of prothorax more rounded, more suddenly sinuate at base, hind angles 
rectangular, prominent.laticollis. 
Sides of prothorax less rounded, less suddenly sinuate at base, hind angles rect¬ 
angular, not prominent.carinata. 
Thorax nearly quadrate, elytral striae fine, finely punctate anteriorly, .elongata. 
Thorax broader than long, elytral striation less fine, punctuation quite evident. 10 
Blackish piceous, elytral striae more finely punctate.. .hyperborea. 
Blackish, elytra brown, striae more strongly punctate .brunnipennis. 
Prosternum with side pieces smooth.12 
Prosternum with side pieces punctured, scutellar stria long.apricaria. 
Prosternum g not punctured.septentrionalis. 
Prosternum g with oval punctured space.13 
Scutellar stria short or wanting, meso- and metasternal side-pieces punctured. 
exarata. 
Scutellar stria long, meso- and metasternal side-pieces smooth.latior. 
Posterior tibiae of g densely pilose internally.15 
Posterior tibiae of g not or scarcely pilose internally.23 
Spur of anterior tibia trifid. 16 
Spur of anterior tibia simple.17 
Hind angles of thorax obtuse, four antennal joints largely pale... . angustata. 
Hind angles of thorax sharp, rectangular, only three basal antennal joints 
pale.pallipes. 
Antennae not carinate, prosternum of g not punctured.•.18 
Antennae with joints 2-3 carinate.21 
Scutellar stria terminating in an ocellate puncture.impuncticollis. 
Scutellar stria without ocellate puncture.19 
Striae of elytra punctured, base of thorax finely punctured.basillaris. 
Strife of elytra not or obsoletely punctured, base of thorax smooth.20 
Thorax narrowing from base to apex, form broad, robust, terminal spur of ante¬ 
rior tibia shorter than usual.crassispina. 
Thorax narrowing from in front of base, form oblong-oval, tibial spur normal, 
legs piceo-rufous, hind angles of thorax obtuse, the puncture rather distant 
from side margin.Clipreolata. 
Scutellar stria with ocellate puncture.fallax. 
Scutellar stria without ocellate puncture.22 
Basal impressions of thorax very faint, strife of elytra and surface of thorax not 
punctured, form oblong oval.protensa. 
