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Genus RACODINEURA Rond. 
Roeselia Desvoidy, Essai sur les Myodaires, p. 145; 1850. (Non Huebner, 1816.) 
Racodineura Rondani, Dipterologizx Italicee Prodromus, Vol. 1V, p. 31; 1861. 
The latter term was proposed by Rondani to take the place of Roes- 
elia, which had previously been used in the Lepidoptera. Our single 
species is black, the antennie, lower part of face, palpi, femora, and 
tibie yellow; front of female slightly over twice as wide as either eye, 
two pairs of orbital bristles, frontal bristles descending to tip of sec- 
ond antennal joint; sides of face at narrowest point each almost one- 
half as wide as the median depression, thinly bristly one-fifth of 
distance from lowest frontal to the vibrisse, the latter on a level with 
front edge of oral margin; ridges bristly on the lower half, but the 
uppermost bristles very short; cheeks slightly over one-half as broad 
as the eye height; antennz almost as long as the face, the third joint 
five times as long as the second, arista thickened to the middle, the 
penultimate joint broader than long; thorax gray pollinose, marked 
with four black vittz, four postsutural and three sternopleural mac- 
1ochietie; scutellum bearing four long marginal pairs; abdomen opaque 
gray pollinose, first three segments bearing marginal macrochetie, mid- 
dle tibize each bearing three or more on the front side near the middle; 
wings hyaline, the base grayish, third vein bearing a single bristle 
near the base, hind crossvein nearly straight, midway between the 
small and the bend of the fourth; calypteres white; length, 9 mm. 
Titton, Ga. A female specimen collected October 1, 1896, by Mr. G. R. 
Pilate. Type No. 3545, U. 8. National Museum ...... americana L. Sp. 
Genus ERVIA Desv. 
Ervia Desvoidy, Essai sur les Myodaires, p. 2253; 1850. 
Our single species is black, the face and more or less of the antenne, 
femora, and tibiz, also the greater portion of the sides of the first three 
segments of the abdomen in the male, yellow; three postsutural and 
three sternopleural macrochetie; length, 7 to 10 mm. Agricultural 
College, Miss., and Lufkin, Tex. (Encyclopédie Méthodique, Vol. 
Wall ps425— 1810 2: Oeypterd.) <2. toe <ct. see sees Se ee triquetra Oliv. 
Genus LESKIA Desv. 
Leskia Desvoidy, Essai sur les Myodaires, p. 100; 1830. 
Myobia Desvoidy, loc. cit., p. 98. (Von Heyden; 1826.) 
Solicria Desvoidy, Annales Soc. Ent. France, p. 461; 1848. 
Orillia Desvoidy, loc. cit., p. 474. 
Anthoica Rondani, Dipterologie Italiczee Prodromus, Vol. IV, p. 8; 1861. 
Pyrrosia Rondani, loc. cit., p. 48. 
tondani proposed the name Anthoica for Myobia, which is preoccu- 
pied in the Arachnida, and erected the genus Pyrrosia to include Les- 
kia, Solieria, and Orillia. Brauer and Bergenstamm place Leskia and 
