156 Proceedings of the Biological Society of Washington. 



with yellowish hair, a tuft of paler yellowish hair at posterior angles. 

 Scutellnm black, clothed with erect yellowish hair. Pleurae and coxae 

 clothed entirely with dense, long, pale yellowish hair. Abdomen elongate 

 ovate, about as wide a- the thorax, tapered beyond the fourth segment 

 to the very slender retractile ovipositor; vestiture entirely of dense, erect 

 yellowish pile. Legs black, the tibipe and tarsi partly ferruginous; pulvilli 

 uniformly pale smoky brown. Front legs entirely black, the femora with 

 long yellowish pile on postero-dorsal and postero-ventral surfaces nearly 

 to apex, the remainder, as well as the tibiae with shorter black hairs. 

 Middle legs with the apical half of the tibia dark ferruginous; first two 

 tarsal joints ferruginous, dark at apices, the remaining joints nearly 

 black; vestiture long and pale yellowish on postero-ventral surface of 

 femur nearly to apex and on postero-dorsal surface of tibia excepting 

 basal fourth, all the remaining vestiture black. Hind legs with the apical 

 two-thirds of tibia ferruginous, the extreme tip marked with black; first 

 to third tarsal joints ferruginous, black at apices, last two joints velvet 

 black; vestiture mostly pale yellowish on basal half of femur and on 

 apical three-fourths of tibia; first tarsal with long pale yellow hairs on 

 postero-dorsal surface, the remaining vestiture black Wings slightly 

 tinged with grey, semihyaline; veins black, the fourth vein pale in its 

 last section. 



Length. — Body, about 15 mm. ; wing, 12 mm. 



Newfoundland: Stephenville Bay, St. George, two females, August 

 (Mns. Brooklyn Inst. Arts & ScL, access. 11,976); Deer Lake, May 10, 

 1901, female bred from Rnngifer terrxnovx (A. Hassall). 



Tg/>e.— Cat. No. 15,763, U. S. Nat. Mns. 



Paratype deposited in Museum of Brooklyn Institute of Arts and 

 Sciences. 



The writer has had brought to bis notice variation in the color of the 

 pubescence of what is undoubtedly a single species of Cephenomyia at 

 least as great as that here shown to exist between the new form and 

 (JEdemagena tarandi. It is therefore not without hesitation that he decided 

 to characterize the new form as distinct. In this he was guided by the pres- 

 ence of slight structural differences, particularly in the shape of the eyes 

 and frons. In tarandi the eyes are more elongate, while in terrxnovse they 

 are more globose and extend hut slightly below the antennfe; in terrx- 

 novie the frons is slightly narrower and more prominently rounded than 

 in tarandi. The pile on the abdomen of terreenovx is a trifle shorter than 

 in the older species. An additional deciding factor was that in the 

 numerous notices of tarandi there is no mention of color variation in the 

 direction of the Newfoundland form here described. In the bred speci- 

 men the wings are not fully developed, but it is typical in other respects. 



So far as I am aware the occurrence of (Edemagena in Newfoundland 

 has been reported only once, by Prof. C. W. Johnson, on information 

 from Mr. Owen Bryant (in Wilfred T. Grenfell's " Labrador, the country 

 and the people," 1909, p. 431 ). 



