34 Journal New York Entomological Society. t VoL xxvu. 



inal sternite more or less longitudinally excavated. All of the abdominal ster- 

 nites with a single, submarginal row of inconspicuous setae. Median im- 

 pressed line of metasternum with a closely approximated, and posteriorly 

 slightly diverging line of small confluent punctures on each side, laterad of 

 these lines a row of setigerous punctures. 



The genital armature of the male (PI. VI) measures 2.7 mm. in length 

 and shows a more than common degree of asymmetry, which often extends 

 down the stalk to the base of the dorsal prominence. No variations of con- 

 sequence have been noted in the armatures of the numerous specimens exam- 

 ined. The genital plates of the females of all of the species seem to be very 

 simple and undifferentiated, and are therefore not figured at the present time. 



J. Differs from the male only in the usual secondary sexual characters : 

 slightly shorter antennal club, more convex underline of abdomen, less con- 

 vex pygidium and much less emarginate sixth ventral plate. 



Type: o". Lincoln, Nebraska, May 6, 1918 (L. Brunei - ). 

 Allotypes: ?. Lincoln, Nebraska, June 5, 1918 (L. Bruner). 

 Paratypes: 51 d\ 37 ?: 



Nebraska: Lincoln 35 S, 18 ?; Fairmont 1 6", 1 ?; Hooper 1 6*; 



Brock 1 d\ 

 Iowa: Iowa City 1 3. 

 Illinois: Nashville 1 d", I $. 

 Indiana: Lafayette 90*, 17 $; Marin Co. 1 o". 

 Louisiana : Vowell's Mill 1 c?. 

 This species is very similar in general appearance to S. inter- 

 mixta Blatchley, in fact is separable only by very careful comparison 

 of specimens, unless the determinations are made by examining the 

 male genitalia which differ widely in the two species, the claspers of 

 the armature being nearly symmetrical in intermixta. The principal 

 differential, external characters of campestris are its darker color, 

 distinctly less heavily punctured elytra and shorter antennal club, 

 than in intermixta. 



Serica cucullata new species. 



^. Length, 10 mm. ; width, 5.5 mm. Color chestnut-brown, upper surface 

 bare, polished and shining, without any trace of sericeous or pruinose lusters ; 

 the only trace of a pruinose luster observable on the entire body being on 

 the anterior coxae, inferior portion of anterior femora and terminal segment 

 of the abdomen. 



Clypeus distinctly impressed, with elevated margins, the anterior margin 

 more strongly so, slightly reflexed and moderately sinuate at the middle ; the 

 lateral incisure relatively deep, wide and obtuse at the bottom ; discal area 

 very distinctly tumid slightly below the middle; puncturation moderately 



