164 Journal New York Entomological Society. ^^'°^- xxix. 



gins, the apical, reflexed margin almost straight when viewed perpendicularly; 

 antennal club relatively larger, ii instead of 9.4; the claspers of the genital 

 armature of male (PI. XI) lack the terminal spicules, but show on each side a 

 well-developed median tooth. 



5. Clypeal margins, especially the lateral, only half to two thirds as 

 strongly elevated as in the male, and clypeal notch distinctly less well devel- 

 oped, acute and on the average about half dividing the elevated rim ; antennal 

 club small, 7.6 instead of 11 as in the male. 



Type: c^. Riverton, New Jersey, May 25, 1919 (J. J. Davis), on post 

 oak. 



Allotype: J. Same data. 



Paratypes : 11 (^, 12 $. 



New Jersey: " N. J.," 6 <^, 3 5 ; Riverton, 5 J', 9 ?. 



Serica vespertina accola new subspecies. 



J*. Length 8.5 mm., width 4.8 mm. Color uniformly light brown (amber 

 brown to argus brown), surface bare, polished and shining. 



Clypeus not or but very little depressed at the suture, nearly flat with only 

 a very feeble convexity beyond the middle ; anterior margin abruptly, mod- 

 erately elevated, separated from the slightly less elevated lateral margins by 

 strong though acute incisures which nearly or quite divide the elevated rim. 

 Viewed vertically the anterior reflexed margin is straight, viewed at an angle 

 from above rather strongly and evenly arcuate from side to side. Clypeal 

 suture distinct, bluntly angled at the middle. Puncturation close, even, and 

 moderately strong, the punctures separated by one half to two thirds their own 

 diameters. Front less closely and regularly punctured, especially above. An- 

 tennal club about equal to the total length of the antenna beyond the basal 

 constriction of the first segment. Eyes larger than usual. Measurements of 

 head : diameter of head through eyes, 25 ; distance between inner eye margins, 

 13.5 ; length of head on median line, 18; extreme width of clypeus in front of 

 incisure, 11.5; antennal club, 9.4; dorso-ventral diameter of eye, 10. 



Pronotum less convex and narrower behind than usual, sides feebly 

 arcuate, moderately convergent through the anterior third ; surface covered 

 with moderate-sized punctures, rather evenly placed, separated by one to two 

 times their own diameters, except just above the mid-lateral piceous spot where 

 the punctures are a little smaller and separated by only half their own diam- 

 eter, while below and behind this area the punctures are less numerous, but 

 twice as large. Measurements of pronotum : width through posterior angles, 

 38 ; width through anterior angles, 26 ; length of median line, 22. Scutellum 

 strongly and closely punctured, except at the middle, length, y.j ; width, 7.7. 



Elytra only moderately furrowed, the sulci with three fairly definite rows 

 of strong punctures, separated by about their own diameter ; the costse with 

 only an occasional coarse puncture, well rounded but somewhat narrowed and 

 rather definitely marked by the adjoining rows of strong punctures; length, 65; 

 width, 48. 



