446 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 43. 



Locality. — Kaslo, British Columbia (A. N. Caudell), one male. 



Type.—C&L No. 14839, U.S.N.M. 



I Ivnow of no species of ApJiiochseta witlr the wing tip darkened as 



here. It is a very distinct insect allied to agarici Lintner, but the 



characters given in description should separate it from any described 



species. 



Genus APHIOCH^^TA, Group B. 



TABLE OF SPECIES. 



1. First costal division only about as long as second, and decidedly shorter than sec- 



ond and third together; male palpi dilated, costal fringe very short. 



magjiipalpis, p. 446. 



First costal division at least one and one-half times as long as second, and as long 



as, or longer than, second and third together, costal fringe of moderate length.. 2. 



2. Male palpi dilated and almost bare, first costal division in male about twice as long 



as second, in female about one and one-half times as long, hal teres clear yellow. 



projecta, p. 446. 



Male palpi normal, and rather strongly bristled; first costal division three times as 



long as second; hal teres brown calif orniensis, p. 447. 



APmOCH.STA r.IAGNIPALPIS Aldrich. 



This was originally described ^ from specimens taken in St, Vincent, 

 West Indies. The description there given is too brief to identity the 

 species if any closely allied forms are found, as no mention is made of 

 most of the principal characters by means of which the species in this 

 group are generally separated. Brues in redescribing it gives the scu- 

 tellar bristles as two, though the table gives it as belonging to the four- 

 bristled group, and in neither description is there any mention of the 

 dilated fore metatarsi. The costa is extremely fine fringed and the 

 hairs on the arista are very distinct, being more easily seen than the 

 costal fringe, the hind tibia is destitute of distinct setulse, ha^'ing only 

 weak hairs on the postero-dorsal surface, and the scutellum has four 

 distinct bristles. There are two specimens (the types) in the collec- 

 tion representing both sexes. They are not in very good condition, 

 but they seem to have the mesopleura bare. 



APHIOCHiETA PROJECTA Becker. 



I find a male of this species and what is very probably a female also 

 in the collection from White Mountains, New Hampshire (Morrison). 

 It has not been previously noticed, so far as I am aware, from this 

 country though it is a very common European species, and is attached 

 to fungi in Britain. It may be known in the male sex by the large 

 projecting palpi, and in both sexes by having four strong post- 

 antennal proclinate bristles, mesopleurse with several bristles, four 

 scutellar bristles, costa to slightly beyond middle of wing, long fringed, 

 halteres yellow, fore tarsi distinctly thickened, the metatarsi being 



1 Trans. Lond. Ent. Soc, 1906, p. 438. 



