120 



PSIS, new genus. " 



Genus TACHINOPSIS, new g 



The followino; is a description of the type species : Black, the frontal 

 vitta, first two joints of antenuiB, and the palpi yellow; front of male 

 two-thirds as wide as either eye, frontal bristles descending slightly 

 below the arista, no orbital bristles, hairs on sides of front short and 

 sj)arse, cheeks one-sixth as broad as the eye height, vibrisste on a line 

 with front edge of oral margin, ridges bristly on the lower three- 

 fourths, antenna3 six-sevenths as long as the face, third joint three and 

 one half times as long as the second, arista thickened on the basal 

 two-fifths, the penultimate joint nearly as broad as long, thorax gray 

 pollinose, marked with four black vittcC, four postsutural and three 

 steruopleural macrochietiej scutellum bearing four marginal pairs; 

 abdomen shining, bases of last three segments opaque gray pollinose, 

 first three segments bearing marginal macrochiiet;B only; front pulvilli 

 as long as the last tarsal joint, middle tibiiie each bearing two macro- 

 chsetai on the front side near the middle, hind tibi;e outwardly subcil - 

 iate ^; wings hyaline, third vein bearing three bristles near its base, hind 

 cross vein slightly beyond the middle between the small and the bend, 

 last section o f fifth vein almosl^as Ipn^ a s the preceding jsection ; calyp- 

 teres white; length, 7 mm. Washington. A single male specimen 

 collected by Prof. O. B. Johnson. Type No. 3024, U. S. National 

 Museum mentaUs n. sp. 



Genus EUTHERA Loew. 



Euthcra Loew, Diptera Amer. Septentrionalis Indig., Cent. VII, No. 8.5; 1864. 



Qur-sin glo opecioa ig . black, the frontal vitta, middle of face, lower 

 part of head, tbe palpi, and femora yellow; wings brown on the costal 

 edge beyond the humeral crossveiu, along the last two sections of the 

 fifth vein, a fascia from costa over the hind crossvein and including the 

 small crossvein, finally a fascia which fills the apex of the apical cell; 

 length, 7 mm. Pottstown, Pa., and Tifton, Ga. (Loc. cit.) . tentafrix Loew. 



Genus DEMOTICUS Macq.^ a^^Ju^^^<-^ 



Demoiicus Maoquart, Annales Soc. Eut. France, p. 442; 1854. 



1. Femora largely or wholly black 3. 



Femora and tibiae yellow; three postsutural and three steruo- 

 pleural macrochicta' 2. 



2. Third vein bristly at least one-third of the distance from base to 

 ^, small crossveiu, front of male five sixths as wide as either eye, 



^^^^^V^-* thorax, except tlie humeri, and the tarsi black; length, to 11 

 mm. Philadelpliia, Pa, ; Colorado; (Jalifoi-nia, and Washington. 

 (OanadiauEntomologist, Vol. XXVJI, p. 127; May, 1895: Brep- 

 anoglossa.) venatoris Ooq. 



