139 



present in both sexes; length, 7 to 9 mm. London, Canada; 

 White Monntains, New Hampshire; Colorado, and Washington. 

 (Trans. Amer. Ent, Soc, Vol. XIX, p. 103; May 1892: Trixo- 



elista.) distincfa Town. 



Thorax marked with fonr black vitta^; abdomen shining black, bases 

 of the segments thinly gray pollinose; length, 9 to 11 mm. Los 

 Angeles County, Cal. (Journ. X. Y. p]nt, Soc, Vol. Ill, p. 100; 

 September. 1895.) califoniiea Coq. 



Genus TRICHOPHORA Macq. 



Trichophora Macquart, Dipteres Exotiqnes, Supplement II, p. 78 (62); 1847. 

 Elachipalpns Koiidani, Niiovi Aim. Sc. Nat. Bologna, Vol. II, p. 169; 1850. 



Brauer and Bergen staram state that these two genera could projierly 

 be united into one genus,' and the writer is of tlie same opinion. Our 

 species have three postsutural and three sternopleural macrochtetie, 

 the second and tbird segments of the abdomen bearing only mar- 

 ginal ones, apex of the fourth segment yellowish, the third vein bristly 

 almost to the small crossvem: 

 Ocellar bristles absent, scutelluni wholly black ; length, 8 to 10 ram. 

 Montgomery County, Pa.; Dist. Columbia; Virginia; Georgia; 

 Lake Worth, Fla. ; Utica, Miss., and Texas. (Tijdschrift voor 

 Entom., Vol. II, p. 146; 1867: Schineria. Elacliipalpus undulatus 

 Say MS., Brauer and Bergenstamm in litt.) . .ruficanda v. d. W. 

 Ocellar bristles present, directed obliquely forAvard; black, the first 

 two Joints of the antenna?, face, cheeks, apex of scntellum, and 

 of the fourth segment of the abdomen, also the tibi;T^, yellow, 

 frontal vitta and third joint of antenna^, brown; front of female 

 one and one half times as wide as either eye, the sides subopaque 

 gray pollinose and bearing two pairs of orbital bristles, sides of 

 face bearing sparse and rather short black hairs, cheeks one-half 

 as broad as the eye height, head at tlie vibrissjie as long as at 

 base of antenure, antennie four-tifths as long as the face, the third 

 joint as long as the second, scarcely longer than broad, arista 

 thickened on the basal two-thirds, the penultimate joint three 

 times as long as broad; thorax gray pollinose, marked with four 

 black vittte, scutellum bearing two long marginal pairs and a 

 short apical pair of macroclmetie ; abdomen gray pollinose and 

 with darker retlecting spots, second and third segments bearing 

 marginal, the fourth with discal and marginal macrochieta? ; 

 wings hyaline, the base tinged with yellowish, calypteres white; 

 length, 9 mm. Los Angeles County, Cal. A single female speci- 

 men bred from a chrysalis of Adi.sophcmes miscellus by A. Koebele. 

 Type Xo. 3645, U. S. Xational Museum miscelli u. sp. 



' Zwcif. KaLs. Mus. Wien, VI, p. 214; 1893. 



