LIST OF DIPTERA. 297 



sers yellow, with ferruginous knobs. Female, — A little larger than 

 the male ; spots on the wings more indistinct. Length of the body 

 4 — 5 lines ; of the wings 9 — 11 lines. 

 a. Georgia. From Mr. Abbot's collection. 



Cyllenia aberrans, n. s., mas. Nigra, abdomine albo fasciato 

 pilisque longissimis albis ciliato, antennis pedibusque nigris, alis 

 basi nigro-fuscis apice limpidis. 



Eyes of the male remote from each other : wings with three 

 areolets at the base and one along the fore border, and having also 

 three close areolets in the disk of the wing, and nine that open to 

 the tip and to the hind border ; of the close areolets, the upper one 

 is long and narrow, the two lower are shorter and broader, and one 

 of them is half subdivided by an imperfect vein that extends into 

 its disk ; of the open areolets, the first and the second, reckoning 

 from the base of the wing, are seated successively beneath one of 

 the lower close areolets ; the third is seated beneath the other lower 

 close vein, which is subdivided, the fourth and the fifth are along- 

 side it ; the sixth is alongside of the upper close areolet, which it re- 

 sembles in shape; the seventh is divided from the eighth, and the 

 eighth from the ninth by two successive forks of the vein, which 

 forms the lower side of all the three. Body black, clothed with 

 black hairs : head very hairy, having a few short white hairs in 

 front : eyes red : feelers and mouth black : abdomen with veiy long 

 white hairs on each side, clothed with long black hairs at the tip, 

 and having a band of short white hairs on each segment from the 

 first to the fourth : legs black, clothed with black hairs : wings 

 blackish brown from the base to beyond the middle ; the rest colour- 

 less ; the brown part is somewhat paler towards the hind border of 

 the wing, and its outline thence to the fore border is slightly oblique 

 and irregular ; wing-ribs and veins piceous, the latter black towards 

 the tips ; poisers piceons. Length of the body 3 lines ; of the 

 wings 7 lines. 



Toxophora, Wiedemann. 



A. Meig. Dipt. ii. pi. 19,/. 14. One marginal and three submarginal 

 areolets* 



Toxophora maculata, Wied. Zool. Mag. i. 2, 8. Meig. Dipt. ii. 

 237, 1, pi. 19, /. 15. Macq. Hist. Nat. Dipt. i. 387, 1, pi 9, 

 /. 16. Gim. Bull. Soc. Imp. Nat. Mosc. 1847, 1, 223, 1. Asi- 

 lus fasciculatus, Vill. Ent. 3, 10, 31. 



a. Valence, South of France. From Mr. Walker's collection. 



