86 INSECUTOR INSClTly© MElNSTRUUS 



Van der Wulp, Biologia, Dipt., ii, 1890, 130, male (Macquartia 

 acuminata, new). — Guerrero, Mexico, 7000-8000 ft. 



Represented in the National Museum by two males; one 

 labeled "Piches & Pirene Vs. Peru, 3000-3000 ft. See. Geog. 

 de Lima ;" the other Chapada, Brazil, from the Williston col- 

 lection, through the American Museum (H. H. Smith, col- 

 lector). 



Two females from South America may represent one or both 

 of the preceding species, but I am unable to decide what male 

 if any in the collection they belong to. One is from Sao 

 Paulo, Brazil (Dr. Lutz), the other from Rio Charape, Peru 

 (Townsend). They have the arista almost without pubescence, 

 and in both the wings are considerably infuscated. 



Uramyia halisidotae Townsend. 



Townsend, Proc. U. S. N. M., 49, 1916, p. 626, male (Uromac- 



quaftia). Aurora Mills, Ore. 

 Coquillett, Revision Tachinidse, 1897, 64, included the type under 



Macquartia pristis Wlk. 



Represented in the National Museum by the type male from 

 Aurora Mills, Oregon, which was reared from Halisidota 

 argentata; two females bred in the same lot but not men- 

 tioned as types by Townsend ; one female, Siskyou County, 

 California ; one male, Stanford University, California, bred 

 from Halisidota argentata by R. Patterson, March 8, 1898; 

 one male, Monterey, California, reared from Malacosoma sp. 

 by Geo. A. Coleman, June 1, 1904. I have also compared two 

 males and three females from Corvallis, Oregon, one pair in 

 my collection, the other sent by Dr. J. Bequaert ; all these last 

 I believe came from Professor Lovett originally. 



The length of the tail-like prolongation of the abdomen is 

 highly variable. It is shortest in the type specimen. The 

 females dififer very little from those of Pseiidenantha pristis; 

 the only character I could find was the presence of three 

 sternopleurals, pristis appearing constant with two. In sepa- 

 rating them on this character I had to transfer to pristis one 

 female that Townsend had placed in halisidotcc. It would 

 seem from this resemblance that Pseudciiantha can hardly be 



