NORTH AMERICAN DIPTERA. 



59 



Mallopliora laphroides. 



A.iilus laphroides Wiedemann, Auss. Zw. Ins. i, 483, 88. 



Mallophora heteropiera Macquart, Dipt. Exot. i, 2, 90, 13; Tab. viii, fig. 13; 



Schiner, Ver. Z. B. Ges. xvii, 387. 

 Mallophora minuia Macquart, Hist. Nat. Dipt, i, 302, 5. 

 Mallophora laphroides Schiner, Ver. Z. B. Ges. xvi, 711 ; Osten Sacken, Cat. Dipt. 



77; Williston, Trans. Am. Ent. Soc. xi, pi. 2, fig. 11. 

 % 9.— Length 9-11 mm. Black, with white and light yellow pile. Face 

 wholly clothed" with white pile, more or less intermixed with black on the oral 

 margin ; palpi more or less black haired ; front with sparse black pile ; beard abun- 

 dant white. Dorsum of thorax sparsely covered with short light yellow pile, on 

 the posterior part and above the wings with fine black bristles; scutellum with 

 abundant and longer light yellow pile. Pleurae thickly grayish pollinose, on the 

 upper part with light yellowish, on the lower part and on the coxee with white pile. 

 Abdomen flattened above, depressed, black, but little shining; on the sides of the 

 segments toward the base, and the posterior angles of the fourth, fifth and sixth 

 segments with moderately abundant, light yellow pile, and which forms slender 

 faint cross-bands on the hind margins of the segments; on the posterior portion 

 of the third segment, and the fourth, fifth and sixth segments, except the pos- 

 terior part, with short black pile, not abundant ; venter wholly light yellow pilose. 

 Le^^s black; tibiae reddish yellow, a few black bristles on the outer part of the 

 hind femora above, more or less on the outer sides of all the tibiae and the tip of 

 the hind pair and all the tarsi with black pile; elsewhere the pile is white, mod- 

 erately abundant. Wings hyaline, with a brownish shade along the front margin ; 

 marginal cell broader than usual ; first posterior cell closed. 



Eab.—Ga., Pa. (Macq.), Ky. (Wied.), Brazil (Schiner). Four 

 specimens, Georgia. 



That this is Macquart's heteroptera does not seem at all doubtful, 

 although he describes the front and hind tibiae as being black at their 

 tips and the legs clothed with yellow pile. That the species is also 

 Wiedemann's A. laphroides seems evident. His description of the ab- 

 domen as having the " Seitenrander vom vierten Abschnitte an schwarz- 

 behaart" is not readily understood without one examines the specimen 

 directly from above, when his meaning is very apparent. 



mallophora claiisicella. 



Mallophora claiisicella Macquart, Dipt. Exot. 4e Suppl. 79, 27; tab. vii, fig. 8. 



A sinde male specimen from Pennsylvania, collected by my zealous 

 young friend, Mr. E. W. Keen, though closely allied to M. laphroides, 

 yet is evidently different. It agrees throughout with Macquart's de- 

 scription of M. clausicella, which he thought might be a variety of his 

 M. heteroptera (= M. laphroides). It differs from M. laphroides, 

 besides the rather larger size (12 mm.) in the abdomen being without 

 black pile on the distal segments, in the pile of the tibiae being much 

 more abundant and more yellowish, in the distal end of the hind tibiae 



