DIPTEIIA— ANTHOMYID.E. 549 



the extreme base), most of the abdomen, and parts of the head, thorax, and 

 leg's. The wings are rather narrow and regularly rounded ; the bristly 

 costal vein extends to the tip of the fourth longitudinal vein ; the first longi- 

 tudinal vein terminates before the middle of the costal border, just above 

 the small transverse vein; the auxiliary vein is distinct throughout and 

 remains in close contiguity with the first longitudinal vein, curving first 

 downward and then upward, and diverging from it only near the tip, and 

 then but little, being- separated from it at its tip by scarcely more thau the 

 thickness of the costal vein ; the transverse shoulder vein is slightly oblique; 

 the third longitudinal vein strikes tlie tip of the wing, and the second divides 

 the space between this and the costa, running for the greater part of its 

 length parallel to the latter, turning slightly upward at the tip ; the third 

 and fourth longitudinal veins are pretty closely approximated, and parallel 

 as far as the transverse vein in the middle of the wing; from this to the 

 large transverse vein they diverge gently, and are again parallel beyond ; 

 the small transverse vein is placed a very little befoi'e the middle of the 

 wing; the large transverse vein is straight, nearly perpendicular to the costa, 

 its lower extremity distant from the margin by about half its own length, 

 its upper extremity dividing, just before the middle, the part of the fourth 

 longitudinal vein lying beyond the transverse vein ; the fifth longitudinal 

 vein vanishes just before reaching the border; the two small basal cells are 

 nearly equal in size, in length about midwa}- between the lengths of the 

 two transverse veins. The wing is covered pretty abundantly, veins and 

 membrane, with delicate microscopic hairs, and appears te) be uniforndy 

 hyaline, though a little fuscous on the stone. The specimen appears to be 

 a male, and the tegulpe are distinctly marked, leaving no doul)t that it 

 belongs to this group of Muscidaj. 



Probable length of body, 6""'" ; length of wing, 6.2™""; breadth of same, 

 2.-i5'""; length of hind tibia, 1.45°"°. 



Quesnel, British Columbia. One specimen, Nos. 30 and 32 (Dr. G. M. 

 Dawson, Geological Survey of Canada). 



Anthomyia burgessi. 

 PI. 3, Fig. 34. 



Anthomyia burgessi Scudd.,Rep. Progr. Geol. Surv. Can., 1875-lS7(i, '2T4-27.5 (1877). 



The single specimen of this species shows an up])er view of the whole 

 body in a somewhat fragmentary ciondition. The broad and rounded 



