114 BROOKLYN MUSEUM SCIENCE BULLETIN 3. 3. 
as usual a little shorter in the female; second and third joints small, 
equal, together about as long or slightly longer than the first joint. 
Prothorax about as wide at apex as long; sides more or less dis- 
tinctly converging behind the lateral tubercle, anterior angles distinct, 
generally not prominent; posterior angles prominent; lateral tubercle 
distinct and separated from the disk by a more or less deeply impressed, 
arcuate groove; median line generally distinct and fine; anterior trans- 
verse impression distinct and limited behind by an obtuse, oblique ridge 
on each side of middle; surface finely punctate, generally the punctures 
are closely placed and more or less transversely or obliquely confluent, 
producing a strigate-rugose sculpture, more evident at sides and base. 
Elytra sub-parallel; ante-median and post-median impressions 
generally deep; apices truncate, outer angle distinct but rounded; 
serial punctures moderate and gradually smaller towards apex; intervals 
on the disk generally nearly smooth, shining, with scarcely any rugae; 
laterally usually more or less rugose. 
Body below closely and finely punctate; pubescence short, cinereous 
and not dense; pubescent space near anterior coxae small; intercoxal 
process of mesosternum about half of the width of the cavities, or very 
nearly so; posterior femora moderately strongly clavate, at base dis- 
tinctly narrower than at apex, armed below in both sexes with a rather 
small tooth. Length: 5-7 mm. 
Male: Posterior femora reaching the apex of the fourth ventral 
segment; last dorsal segment truncate at apex; last ventral segment 
with a feeble impression at middle of apex; first ventral segment occa- 
sionally more or less distinctly depressed at middle. 
Female: Posterior femora reaching the apex of the third ventral 
segment; last dorsal and ventral segments rounded at apex. 
Quebec: Rigaud, July and August, and St. Eustache, August (Ouellet) ; 
Rouville, July (Knab coll.). 
Ontario: "E. Ont." (Entomol. Branch). 
Michigan: Oakland Co., June (Hatch). 
Wisconsin: Dane Co., June (Marshall). 
Illinois: Palos Park, June (Liljeblad) ; Cook Co., May (Blackwalder). 
Maine: Wales, Monmouth and Paris, June (Frost). 
Massachusetts: Long Meadow, June (Dimmock, Biol. Surv.). 
Rhode Island: Providence, Cranston, May (Nylen ex Liljeblad). 
New York: Clove Valley, Staten Island, July (Leng); Lowville, Lewis 
Co., June (Notman). 
New Jersey: Wenona, May (Wenzel); Upper Montclair (Nicolay). 
