Dec, 1922.] Dawson: New Species of Serica. 157 



Clypeus resembling that of sericea, but differing in having the anterior 

 margin evidently less strongly reflexed, not more elevated than the lateral 

 margins ; anterior margin viewed at an angle from above, broadly curved 

 at the center and with the corners distinctly more prominent and less 

 rounding than in sericea; clypeus nearly devoid of erect hairs and with the 

 puncturation averaging stronger than in sericea, the clypeal suture a little 

 less distinct and with only two indistinct setigerous punctures at the sides. 

 Measurements of head : diameter of head through eyes, 22 ; distance between 

 inner eye margins, 15; length of head on median line, 18; extreme width 

 of clypeus in front of incisure, 12; antennal club, 9; dorso-ventral diameter 

 of eye, 7. 



Pronotum closely resembling that of sericea, but a little more strongly 

 punctured, and with the marginal setae less well developed. Measurements 

 of pronotum : width through posterior angles, 36 ; width through anterior 

 angles, 24 ; length on median line, 20. 



Elytra with stronger and wider sulci than in sericea, and with two to 

 three much confused rows of densely placed, moderately strong punctures; 

 interspaces relatively narrower and each with an irregular row of strong 

 punctures; length, 57; width, 45. 



Metasternum and posterior coxal plates a little more strongly punctured 

 than in sericea; hind femora also more coarsely punctured, but with the 

 two rows of setae less evident and well developed ; abdominal sternites with 

 fine, shallow punctures, and only moderately well-developed rows of am- 

 bulatorial setae ; pygidium with stronger punctures than the sternites. and 

 showing traces, at least in the apical half, of an elevated, median, longi- 

 tudinal line. 



The genital armature of the male is a counterpart of that of sericea 

 and therefore does not require a separate figure. 



5. Differs from the male in having a slightly more shining and less 

 iridescent pronotum, but the difference is not conspicuous in sericea, and 

 in having much shorter antennal clubs, 4.7 instead of 9 as in the male. 



Specimens examined: 102,^, 78$. 



Maine: Biddeford, i(^; Machias, 1$; Monmouth, 6 (^, 5 5; Paris, 11 (^, 

 15 9; Portland. 3 ^^ ; Wales, 10 j?, 135. 



New Hampshire: " N. H.," i (^, 1$; Bretton Woods. 2,^, 3$; Han- 

 over, I J' ; Hookset, i $ ; Intervale, i § ; Mt. Moosilaukee, \ ^, 2 $ ; 

 Mt. Washington, 4,^, 1$; N. Conway, 4,^, 2 5; Three Mile Island, 



9 c?. 4$. 

 Massachusetts: "Mass.," z^; Edgartown, i ,^, i^; Framingham, 3 J; 



Tyngsboro, i <$ \ Wellesley, 4 (j'. 1$. 

 New York: Ithaca, 1 (^ ; Peru, 4 (j", 1$. 

 Wisconsin : Bayfield, i J. 

 Illinois : Chicago, i (^. 

 Minnesota : Duluth, i J. 



