224 Journal New York Entomological Society. [ Vo1 - xxx il 



ments of head as follows : Diameter of head through eyes, 23 ;i distance 



Pronotum less convex than usual, with its width well carried forward to 

 the anterior third or fourth of its length, then broadly rounded to the anterior 

 angles. Both anterior and posterior angles obtusely rounded. Puncturation 

 coarse and quite evenly distributed over the whole surface ; the punctures 

 separated on the average by about their own diameters. The measurements 

 of the pronotum are as follows: Width through the posterior angles, 41; 

 width through the anterior angles, 24 ; length on the median line, 22. Scutel- 

 lum, except the apex, coarsely and closely punctured, the puncturation often 

 less dense through the center. Length, 10; width, 11. 



Elytra furrowed as usual, but less strongly so than in cucullata and elusa, 

 the costae rounded, and the sulci not sharply defined. Sulci with three con- 

 fused rows of coarse punctures which show very little tendency to coalesce 

 laterally. Length of elytra, 70; width 50. 



Metasternum and posterior coxal plates very coarsely and rather densely 

 punctate. Punctures of abdominal sternites but little more than half as large 

 as those of the coxal plates, but more closely set. Sixth sternite and apex of 

 pygidium opaque and thinly covered with erect, golden-brown setae. Pygidium 

 coarsely and densely punctured. The usual, single rows of stiff setae on the 

 sternites inconspicuous, the setee small and the rows traceable principally by 

 the somewhat coarser punctures which bear them. Erect setae of metasternum, 

 however, well developed and conspicuous, arranged in confused double rows 

 on each side of the median, impressed, longitudinal line, which is closely ap- 

 proximated on each side by a line of fine, longitudinally confluent punctures. 



Genital armature of male (PL XXI) with exceptionally large, asymmetri- 

 cal claspers ; length 2.6 mm. 



Female. — Almost an exact counterpart of the male; the most reliable 

 characters for its identification being the slightly less emarginate sixth 

 ventral sternite, and the more convex under line of the abdomen. Antennal 

 club scarcely perceptibly smaller than that of male. Facial puncturation 

 denser and rougher, with the clypeal suture more nearly effaced and the 

 clypeal incisure often less strongly developed than in the male. 



Type: <$ Ithaca, New York, April 30, 1916 (S. H. Emerson). 

 Allotype: Millers, Indiana, July 19, 1916. 

 Paratypes : 6 <$, 7? : 



New York: Catskill 1 3. 



New Jersey : South Orange 2 <3. 



Ohio : Cincinnati 1 $. 



Indiana: Lafayette 1 d, 2 2; Jackson County 1 $. 



1 The unit of measurement used is one tenth of a millimeter, 

 between inner eye margins, 14; length of head on median line, 18; extreme 

 width of clypeus in front of incisure, 1 1 ; antennal club, 6 ; dorso-ventral 

 diameter of eye, 8. 



