12 
except a dorsal row of spots and the hind edges of the last two 
segments, yellow; last two segments of abdomen sometimes 
almost wholly black; length, 5 to 8 mm. White Mountains, 
New Hampshire, and Agricultural College, Miss. (Trans. Ai. 
Ent. Soc., Vol. XVIII, p. 372; December, 1891: Clytia. Redten- 
bacheria sp., Brauer and Bergenstamm in litt.).---- flava Town. 
Genus EUTRIXA, new genus. 
The principal characters of this genus have been given in the table 
of genera on previous pages of this work. The type species is black, 
the lower part of the front, face, antennie, base of arista, cheeks, pro- 
boscis, palpi, femora, and tibiwe, yellowish; apex of antennie and the 
proboscis sometimes brown; three postsutural and two sternopleural 
macrochetie; apex of antenne less than the length of the second 
antennal joint from the point where the facial ridges approach each 
other the most closely; length, 6to 8mm. Franconia, N. H.; Mary- 
land, and District of Columbia. (List of Dipterous Insects, Part IV, 
p. 753; 1849: Tachina. Ciytiomyia exile Coquillett, Journal N. Y. Ent. 
Soc: Vol, ETE. p. 00; Jumen 1395.) 22 i. es ee Be masuria Wall. 
Genus XANTHOMELANA v. d. W. 
Xanthomelana van der Wulp, Tijd. voor Entomologie, Vol. XXXY, p. 188; 1892. 
Xanthomelanodes Townsend, Canadian Entomologist, Vol. XXV, p. 167; July, 1893. 
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 macrochiets, scutellum bearing two marginal pairs; wings on 
costal half or less brown, the remainder hyaline or subhyaline: 
1. Oral margin bearing black macrochiete in addition to the vibrisse, 
legs black, bases ‘of femora yellow. 2.25.2. 22- 22224: 2-2 eee Le 
Oral margin destitute of black macrochwete besides the vibrisse, 
legs yellow, apices of tibie and the tarsi black; black, the 
antenne, face, cheeks, palpi, abdomen except a spot on each 
side of first segment at its base and a triangular dorsal spot on 
posterior part of second and third segments, coxie, femora, and 
tibie except the apices, yellow; abdomen shining, the fourth 
segment and sometimes the base of the third thinly yellowish 
pollinose; wings hyaline, the costal margin to slightly below tie 
third vein smoky brown; posterior calypteres yellow, the bases 
white; length, 7 mm. Horseneck Beach, Mass. <A specimen of 
each sex collected August 4, 1896, by Dr. Garry deN. Hough. 
Type No. 3568, U. 8. National Museum. .......... flavipes 1. sp. 
