REVISION OF THE GENUS EXETASTES — CUSHMAN" 293 



paler, sometimes yellowish; antenna black with a broad yellow 

 anniilus, scape mostly ferruginous; mngs lightly infumate with 

 darker fasciae below apical half of stigma and along basal vein, vena- 

 tion dark brown, stigma and costa pale ferruginous; legs concolorous, 

 coxae more or less black basally, front and middle legs paler in front, 

 hind femur and tibia apically black, tibia at base and tarsus more 

 yellowish; sheath black with apex ferruginous. 



Male. — Differs from female principally as follows: Head a little 

 thicker, with temples more convex and less sharply receding; antenna 

 as long as body and more slender ; propodeum less roughly sculptured, 

 especially medially. 



Varies greatly in color, sometimes essentially like female except 

 that head is largely black with face, frontal orbits, clypeus, and 

 mandibles definitely yellow, black of thorax a little more extensive 

 and the paler portions more distinctly yellow, antenna! annulus 

 shorter, scape yellow below, and wings hyaUne and immaculate. 

 From this it varies to specimens in which the head is black except 

 for large yellow spots on each side of face and the clypeus, thorax 

 except scuteUum entbely black, coxae and hind trochanter largely 

 or entirely block, front and middle legs more definitely yellow, hind 

 femur largely piceous, and abdomen more or less black at base. 

 Many males have a well marked color pattern of black and ferruginous 

 yellowish on mesoscutum. 



Type locality. — Falls Church, Va. 



T?/pe.— U.S.N.M. no. 51819. 



Para<?/2>es.— Canadian National Collection; Cornell University; 

 American Museum of Natural History ; and the private collections of 

 Henry K. Townes and Andrew R. Park, Jr. 



Remarks. — This species is widely distributed in tbe Northeast, spec- 

 imens being at hand from Quebec, Ontario, and South Dakota, south 

 to North Carolina (Black Mountains) and Kansas, and including the 

 States of Vermont, Massachusetts, Connecticut, New York, New Jer- 

 sey, Pennsylvania, Maryland, Virginia, Illinois, Nebraska, Wyoming, 

 and the District of Columbia. It is an autumn species, and I have taken 

 it in abundance in October and November about young pine trees in 

 northern Virginia. A large series, mostly males, from Ontario and 

 Quebec were taken in September. 



The species has escaped description because it has repeatedly been 

 misidentified eisfascipennis. 



38. EXETASTES FASCIPENNIS Cresson 



Exetastes flavitarsis Cresson, Proc. Ent. Soc. Philadelphia, vol. 4, p. 277, 1865; 



male (preoccupied by flavitarsis Gravenhorst) . 

 Exetastes fascipennis Cresson, Proc. Ent. Soc. Philadelphia, vol. 4, p. 278, 1865; 



female. 



