NEW NORTH A MERICAN DIPTERA—COQ UILLETT. 119 



MERIANIA CHALYBiEA, new species. 



Head l)lack, facial depression yellowisli, bordered each side by 

 reddish brown which, below the middle, is prolonged to the lower 

 end of the eye, frontal vntta of male almost obliterated for a short 

 distance, vertex of female one and one-fourth times as wide as either 

 eye, female with the ocellar bristles present and three pairs of orbitals, 

 wanting in the male, f rentals descending nearl}' to middle of second 

 antennal joint, sides of face covered on the triangular upper outer 

 half with rather long, l)lack bristly hairs, vibrissa^ far above the 

 oral margin, ridges ])ristly on the lowest fourth; antennie orange 

 yellow, scarce!}^ reaching below middle of face, the third joint only 

 slightly longer than the second, arista brown, thickened on the basal 

 thinl. the penultimate joint shorter than ]>road; proboscis black, palpi 

 yellow; thorax blackish steel blue, thinly whitish pruinose, and marked 

 with four black vitta?, four pairs of postsutural dorsocentral bristles, 

 three sternoplurals; scutellum reddish yellow, bearing live marginal 

 pairs of bristles, the last pair the shortest, cruciate; abdomen steel 

 blue, polished, very thinly whitish pruinose, last three segments with 

 discal and marginal bristles; legs black, hind tibite not ciliate, front 

 pulvilli of male longer than last tarsal joint, last four joints of front 

 tarsi of female greatly dilated; wings hyaline, third vein bearing 

 three small bristles near the base, calypteres whitish, bordered with 

 brown; length, 8 to 11 mm. Two males and five females, collected by 

 Prof. J. M. Aldrich. 



Habitat. — Moscow^ Vollmer (May 80), Julietta, Grangeville, and 

 Craig Mountains, Idaho. 



Tijjje.— Cut No. 6232, U.S.N.M. 



This European genus has not heretofore been recorded from this 

 country. In the table of genera given in my Revision of the Tachinida^ 

 it would l)elong to couplet 43, and will be recognized by the absence 

 of ocellar bristles in the male and the greatly dilated front tarsi of the 

 female; the first posterior cell ends far liefore the wingtip. 



AMOBIA AURATA, new species. 



Black, including the palpi; sides of front, of face, and the cheeks 

 golden yellow pruinose; sides of face bearing two rows of rather short 

 bristly hairs; thorax gray pruinose, marked with three black vittte, a 

 black streak on pleura in front of wing; abdomen on first three seg- 

 ments bluish gray pruinose, the hind margin of each and three trian- 

 gular spots extending from it across the segment, black; fourth seg- 

 ment and remainder of abdomen posterior to it golden yellow pruinose, 

 the former crossed longitudinally with three brownish spots; wings 

 hyaline, third vein bearing two In'istles near the base, calypteres white; 

 length, 7 mm. Three female specimens. 



