‘Challenger’ Diptera. 457 
Stratiomyide. 
SArGIna. 
1. Sargus spinigera. 
Xylophagus spiniger, Wied. 
Beris Servillet, Macq. Dipt. Exot. i. (1) p. 172, pl. xxi. fig, 1 (1838). 
Sydney, May 1874. 
Tabanide. 
TABANINE. 
2. Tabanus fulvipes, var. (?). 
Tabanus fulvipes, var.?, Phil. Verh. zool.-bot, Ges. Wien, xv. p. 723 
(1865). 
Messier Channel, Patagonia, January 1876. 
Four female examples of a species allied to T. magellanicus 
and fulvipes, Phil. 7. fulvipes, with which (judging from 
the description) they may possibly be identical, is a Chilian 
species. 
Panqoninz. 
3. Chrysops aterrimus. 
Long. corp. 5 lin. 
Female.—Inky black, very shining ; head, thorax, and the 
basal half of the antenne clothed with short black hair; eyes 
dull black ; wings hyaline, but more or less broadly brown 
along the costa. The brown shade covers the whole costal 
portion of the wing, from the base as far as the point where 
the third longitudinal vein branches; it is then continued 
narrowly along the costa to just beyond the third vein, being 
distinctly thickened on the second and third veins. The 
discoidal cell is almost clear, but the fourth submarginal 
cell is clouded. From the extremity of the discoidal cell, 
and below the third longitudinal vein, from a point just before 
the fork, the brown coloration extends around and above the 
whole of the discoidal cell, almost as far as the posterior 
intercalary vein, just before which it ceases, although it runs 
along the anterior intercalary vein almost to the hind margin. 
Eucosca Dock, Japan, May 1875. 
Allied to various North-Ainerican species, such as C. niger, 
Macq., sepulchralis, Fabr., carbonarius, Walk., &c., from 
which it is easily distinguished by the different pattern of 
the wings. ‘The single specimen from Kucosca Dock being 
Ann, & Mag. N. Hist. Ser. 5. Vol. xin. 30 
