ANTHEAX. 131 



the posterior ungues have at the base minute appendages, which may perhaps be taken 

 for rudimentary pulvilli. 



The European A. maura seems to be a near ally of A. lepidota: the colour of 

 the body, with its white thoracic stripes and abdominal cross-bands, is nearly the same ; 

 the front legs have the same structure — only that the front tibiae, in well-preserved speci- 

 mens, show distinct, though very small and delicate, spinules. These spinules seem to fall 

 off easily, and the same may be the case with A. lepidota. The posterior ungues show the 

 same appearance of rudimentary pulvilli. The third joint of the antennae of A. maura 

 is onion-shaped, with a long style, beginning abruptly. A. maura is remarkable for its 

 variable size, the specimens before me ranging from 6 to 12 millim. in length. 



21. Anthrax chimsera, sp. n., c? . 



Hab. Mexico, Northern Sonora (Morrison). 



I have two specimens that are not well preserved enough for a full description, but 

 which I have nevertheless named, in order to define at once their difference from 

 A. lepidota, to which they bear a striking resemblance. The colour of the body seems 

 to be exactly the same, only as the abdomen is somewhat abraded I cannot describe the 

 first of the two cross-bands upon it, although I see traces of it ; the second cross-band, 

 on the fourth segment, is like that in A. lepidota. The principal difference between 

 the two species consists in the extent of the black on the wings : in A. chimcera it fills 

 the axillary and anal cells (except their extreme ends), a little less than half of the 

 fourth posterior cell, and the proximal end of the third and more than half of the discal 

 cell ; paler spots, within the brown, occur on the anterior and posterior cross-veins, on the 

 proximal ends of the first submarginal and third posterior cells, and within the first basal 

 cell. Altogether, the colour of the wings is like that of A. rex (cf. Tab. II. fig. 17), 

 only the brown is darker. The antennae have a short onion-shaped third joint, with a 

 long style, beginning abruptly (exactly like the antennae of the European A. maura ; see 

 above, under A. lepidota) ; front legs as in A. lepidota. The size of our specimens is 

 only 5-6 millim., but it is very probable that much larger ones occur. 



22. Anthrax eumenes, sp. n., d $ . (Tab. II. fig. 19.) 



Body black ; head with the usual black erect pubescence and a scattered orichalceous tomentum on the face 

 and front ; antenna? black, the third joint short onion-shaped and with a style beginning abruptly ; occiput 

 with a yellowish tomentum. Thorax with the usual collar-like fringe of pale fulvous hairs ; a stripe of impure 

 white hair on each side, above the root of the wings, between the humerus and the post-alar callus ; the 

 dorsum and the scutellum with the usual reddish rare and scattered tomentum. Abdomen with white erect 

 hairs on the sides of the first and second segments ; distinct tufts of black hair along the sides, beginning 

 with the end of segment 2 ; on segment 7, on each side, there is in the male a tuft of white hair, which I 

 do not perceive in the female. Another difference seems to exist between the sexes in the tomentum 

 covering the abdomen : in the female the segments, beginning with the first, have a delicate fringe of 

 whitish hairs along the posterior margin, the seventh being entirely covered with them, and also 

 patches of whitish tomentum on the sides above each of the lateral tufts of black hair ; in the 



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