122 DIPTEEA. 



hyaline space at their end equal in length to the small cross- vein ; third joint of the antennae 

 longer than in the preceding species. Length 12-13 millim. — Two specimens from Mexico, 

 Tuxpango (Sumichrast, in coll. Bellardi) . Very like the preceding species, but certainly 

 distinct. This may be the Anthrax astarte, Wiedem. Aussereur. zweifl. Ins. ii. p. 637, 

 from Mexico ; but the projecting proboscis is not mentioned in the description, and the 

 description of the wings is too indefinite. 

 II. The boundary of the brown simply crossing the second vein, or else running along it for a very 

 short distance (less than a millimetre) . 

 b. The fringes of hair on the sides of the abdomen containing mostly black hairs ; a tuft on each 

 side of the first segment only pure yellowish-rufous ; proboscis projecting ; the brown of 

 the wings encroaching very little on the first submarginal and first posterior cells (less than 

 the length of the anterior cross-vein) ; the extreme end of the anal and axillary cells hyaline* 

 Length 14 millim. — A single specimen from Guatemala, San Geronimo {Champion) . This 

 species is perhaps allied to A. diagonalis, Loew, Centur. viii. no. 33 (California) , judging from 

 the description, but cannot be identified with it. The abdomen of the specimen is abraded ; 

 the surface seems to have been clothed more with black than yellow hairs ; I see traces of 

 the latter on the sides only. 

 bb. The hair on the sides of the abdomen as well as the tomentum on its surface, on the 

 venter, and on the thoracic dorsum golden-fulvous; the proboscis not projecting; the 

 brown entirely filling the axillary and anal cells to their very end. This is A. fulvohirta, 

 Wiedem. Aussereur. zweifl. Ins. i. p. 308, which is common in Texas, and will undoubtedly 

 be found in Mexico. The entirely brown colour of the axillary and anal cells is characteristic 

 and is mentioned as such by Wiedemann, Aussereur. zweifl. Ins. ii. p. 637. 



11. Anthrax selene, sp. n., <? . (Tab. II. fig. 14.) 



The black ground-colour of the body becoming sometimes more or less rufous towards the end of the abdomen ; 

 scutellum reddish-brown, darker at the base. The collar of hair in front of the thorax very pale yellowish ; 

 two stripes of hair on the sides of the latter, passing above the root of the wings, more white : the 

 rare, appressed tomentum on the thoracic dorsum very pale yellowish, forming two or three very 

 indistinct stripes; the tomentum on the scutellum more whitish. On the abdomen the prevailing 

 colour of the tomentum on the second segment is black ; the sides, however, are beset with long, white 

 hair, which partly covers the first segment, and also invades the anterior angles of the second ; 

 segments 3 and 4, and, in a lesser degree, 5-7, covered with an appressed whitish tomentum, which 

 leaves a black, longitudinal stripe in the middle ; the components of this stripe, on each segment, are 

 black truncate triangles, the narrow side foremost, formed by the black ground-colour, covered by some 

 black, appressed tomentum. Pleurae and venter clothed with white hair ; on the venter the penultimate 

 segments show a patch of brown hairs in the middle ; along the sides of the abdomen are tufts of black hairs, 

 beginning at the posterior margin of the second segment. Pace and front with the usual black, erect 

 pile, and pale orichalceous, recumbent tomentum, which, along the sides of the oral aperture, becomes 

 more whitish ; ground-colour of the sides of the face more or less rufous ; occipital orbits fringed with dense 

 white scales. Basal joints of the antennas rufous ; the third joint black, and in the shape of an elongated 

 cone, gradually becoming styliform. The brown of the antero-proximal portion of the wings is not unlike 

 that in A. rex (see Tab. II. fig. 17) in its shade of colour and in the outline of its boundary ; only this 

 boundary is a little more advanced towards the apex, and the cells only partly invaded by the brown have 

 more of it than in A. rex ; the axillary and anal cells are thus entirely brown, except along the edge of 

 the wing, which is sometimes subhyaline ; the angle formed by the brown within the discal cell is deeper 

 here ; the paler spots or cross-veins and bifurcations are the same as in A. rex. The enlargement of the 

 costa, near the root of the wings, is clothed with pale orichalceous scales, mixed with white ones, and 



