72 



except a dorsal row of sj)ots and the liind ed<>cs of the last two 



segments, yellow; last two segments of abdomen soiiictimcs 



j0/\^ almost wholly black; length, 5 to 8 mni. White Mountains, 



(tr-p-. Kew Hampshire, and Agricultaral College, Miss. (Trans. Am. 



Ui-u.*£.,^ C<.^ Ent. Soc, Yol. XVIII, p. 372 ; I)ecend)er, 1891 : GhjUa. Redtm- 



>t-i-<Mt*-<^ J V havhena sp., IJrauer and Bergeustamm in lift.). . If. .Jiava Town. 



Genus EUTRIXA, new genus. 



The principal characters of this genus have been given in tlie table 

 of genera on previous pages of tliis work. The type spe(;ies is black, 

 the lower part of the front, face, antennas base of arista, cheeks, pro- 

 boscis, palpi, femora, and tibia', yeHowish; apex of antenna' and the 

 proboscis sometimes brown ; three postsntnral and two sternopleural 

 inacrocha'ta^; ai)ex of antenna^ less than the length of the second 

 antennal joint from the point Avhere the facial ridges approach each 

 other the most closely; length, to 8 mm. Franconia, N. 11.; Mary- 

 land, and District of Columbia. (L i c t of Diitterous Insects^-Pttrt-l-V^ 

 A^^ p. 753; 18 14): Tachina. Gii/Uomyia exile Cofiuillett, Journal N. Y. Ent. 

 Soc, Yol. III. p. 53; June, 1895.) <k>s.^^ nut sv rid AUtttii. 



Genus XANTHOMELANA v. d. W. 



Xanihomelana van der Wiilp, Tijd. voor Entoinolonio., Vol. XXXV, p. 188; 1802. 

 XanthomeUtnodi's Townseiid, Canadiiin Entomoloj^ist, Vol. XXV, p. 167; July, ISiKS. 



The latter name was proposed for Xanthomelana under the mistaken 

 idea that this name is preoccupied by Xanthomelon ; but the two terms 

 do not conflict with each other. Our two species have three post- 

 sutural macrochictas scutellum bearing two marginal pairs; wings on 

 costal half or less brown, the remainder hyaline or subhyaline: 

 1. ( )ral margin bearing black macrochteta^ in addition to the vibrissa^ 



legs black, bases of femora yellow 2. 



Oral margin destitute of black macrocha'ta' besides the vibrissa', 



legs yellow, apices of tibia' and the tarsi black; black, the 



antenna', face, cheeks, palpi, abdomen except a sjiot on each 



-T^^^^^ side of first segment at its base and a triangular dorsal spot on 



Cvy posterior part of second and third segments, coxa', femora, and 



' tibijB except the apices, yellow; abdomen shining, the fourth 



segment and sometimes the base of the third thinly yellowish 



polliuose; wings hyaline, the costal margin to slightly bel;)W trie 



third vein smoky brown; posterior calypteres yellow, the bases 



white; length, 7 nun. IlorSeneck Beach, Mass. A si)ecimen of 



each sex collected August 4, 189(>, by Dr. Garry deN. Hough. 



Type Xo. 35()8, U. S. Xational Museum flavipen n. sp. 



