Dec, 1922.] Dawson: New Species of Seri'ca. 159 



rior margin abruptly but narrowly reflexed, continuous with the lateral mar- 

 gins which are as strongly, but less suddenly elevated ; lateral incisures 

 obsolete but the point of union between the apical and lateral reflexed 

 margins slightly marked by the depressed line defining the base of the 

 apical margin ; apical margin viewed perpendicularly very feebly curved, 

 viewed at an angle from above practically straight ; surface of clypeus 

 rather closely punctate, sometimes with a mixture of coarse and fine 

 punctures, the rather numerous coarse punctures bearing erect, yellow hairs. 

 Front sparsely covered with small, feeble, shining punctures, and with a 

 row of small setigerous punctures following the inner eye margins and the 

 nearly obsolete clypeal suture. Measurements of head : diameter of head 

 through eyes, 23; distance between inner eye margins, 13; length of head 

 on median line, 17; extreme width of anterior reflexed margin, 10.5; antennal 

 club, 10; dorso-ventral diameter of eye, 9. 



Pronotum rather evenly covered with small, shallow, shining punctures, 

 separated by one to three times their own diameter; mid-lateral piceous 

 spot distinct. Measurements of pronotum : width through posterior angles, 

 34; width through anterior angles, 22; length on median line, 20. 



Elytra sculptured much as in sericea, but usually with somewhat less 

 sharply lined sulci, and finer punctures arranged in two to three much 

 confused rows; length, 55; width. 44. 



Metasternum, posterior coxal plates and abdominal sternitcs closely re- 

 sembling those of sericea. 



The genital armature of the male (PI. XIIT ) differs decidedly from that 

 of sericea and tristis ; length. 2.2 mm. 



$. Differs from the male in its much shorter antennal club (6.5 in- 

 stead of 10) more convex under line of abdomen, and larger and less emar- 

 ginate last ventral segment. 



Specimens examined: 



Massachusetts: Fall River, 2^, 2$; Framingham, He?, 13$; Ipswich, 

 I 5; Lynn, i c? ; Martha's Vineyard, i c^ ; Natick, 1 (^ ; Sherborn, 

 1$; Springfield, i c^; Wareham, i J"; Tyngsboro, 7,$, 6$. 



New York: Bronx Park, 3$; Long Island, i^^; Staten Island, i <^. 



Pennsylvania: "Pa.." 1$; Pittsburgh, 1$; Rockville, i c^. 



New Jersey: Bergen Co., i c^, 2$; Fort Lee District, i (^ ; Jamesburg, 

 I J", I 5; Lahaway, Ocean Co., ij"; Riverton, 2 <i, 4 $• 



Virginia: "Virginia," i ^^ ; Charlottesville, 2 9. 



Michigan : Douglas Lake, Cheboygan Co.. 2 $ ; Harris Co.. i $. 



Wisconsin : " Wise," i (^. 



Illinois: "111.," i (^ ; "Northern Illinois." 4 ^; Chicago, i (^. 



Indiana: Millers, i ^, 2'^. 



North Carolina: " N. C," i ^ ; Raleigh, z 6- 



Georgia : Clayton, i (^. 



