OF WASHINGTON. 179 



Washington State. A female specimen received from Prof. 

 O. B. Johnson. 



Type. No. 7948, U. S. National Museum. 



Stenopogon nigritulus, n. sp. 



Black, the first two joints of antennas, halteres, genitalia, and le^s except 

 the coxse and a vitta on each femur, reddish yellow, the hairs and bristles 

 yellowish white; third joint of antennae about three times as long as the 

 style; mesopleura and hvpopleura bare, abdomen thinly gray pruinose; 

 wings hyaline, veins brown, first and fourth posterior cells broadly open. 

 Length 10 to 13 mm. 



Los Angeles and Kern Cos., Cal. Three males and four 

 females, collected by the writer in July. 



Type. No. 7949, U. S. National Museum. 



The genus Stenopogon was founded by Loew as a section of 

 the old genus Dasypogon* He gave a rather extended descrip 

 tion of it under the caption " 3te Gruppe des Das. sabaudus. 

 Stenopogon" and treated of six European species, of which 

 sabaudus is the sixth and last. It is evident from his heading, 

 quoted above, that Loew considered this latter species as being 

 the type of this group or genus, and it should therefore be ac 

 cepted as such. 



In July, 1866, Loew established a closely related genus under 

 the name of Scleropogon f for a new species from California 

 which he named picticornis ; he stated that this genus resembles 

 Stenopogon in several particulars, but differs in the narrower 

 face and front, shorter third antennal joint, longer style, also in 

 having the first posterior cell closed before the margin of the 

 wing and the third posterior cell greatly dilated all of them rel 

 ative characters which are seldom alike in any two species, and 

 many of the characters mentioned are found to vary considerably 

 in the different specimens of the same species. 



A recent comparison of specimens which I identified as picti 

 cornis, with Italian specimens of sabaudus received from Prof. 

 M. Bezzi resulted in the firm conviction that the most pronounced 

 difference existing between them is to be found in the nature of 

 the hypopleura which is bare in sabaudus, but nearly covered 

 with bristles and hairs in picticornis. Wishing to ascertain if 

 Loew's type of picticornis was identical in this respect with the 

 specimens I had referred to this species I applied to Mr. Samuel 

 Henshaw, the Curator of the Museum of Comparative Zoologv 

 at Cambridge, Mass., who. under date of May 17, 1904, wrote 

 as follows: "Loew's type of Scleropogon picticornis has a 



* Linnaea Entomologica, n, p. 453. 1847. 

 + Berliner Ent. Zeit., x, p. 26. 



