LEPIDANTHEAX. 109 



before me being very much abraded, I cannot say anything about their scaly covering, 

 except that I do not see any trace of silvery scales on their sides. The portion of the pro- 

 boscis projecting beyond the oral margin is not longer, rather shorter, than the head. The 

 black tufts on the sides of the abdomen, between the silvery spots, are composed of scale- 

 like hairs, not unlike the scales of a butterfly ; on the second segment there is a weakly- 

 marked cross-band of yellowish-white hairs. All these specimens (except one) have the 

 firstjgosterior cell bisected by a cross-vein, a character which may be very easily over- 

 looked, as the cross-vein is situated within the dark brown stripe. The discal cell of 

 L. disjuncta is longer, that is, its distal end is nearer the alar margin, than in the other 

 species of the group ; and for this reason the second posterior cell is shorter. 



2. Lepidanthrax proboscidea, <$ . (Tab. II. fig. 8.) 



Anthrax proboscidea, Loew, Centur. viii. no. 27 ( ? )\ 

 Hah. Mexico \ Northern Sonora (Morrison). 



Face, front, and occipital orbits clothed with yellowish-white scaly hairs ; upper part 

 of the front less densely covered, showing the black ground-colour ; face moderately 

 projecting ; the portion of the proboscis projecting beyond the oral margin rather longer 

 than the head. Antennae black ; third joint short, onion-shaped, with a long, slender 

 style. Thorax with the usual collar-like fringe of yellowish hairs in front, its surface 

 clothed with a scattered, appressed, reddish-yellow tomentum, except an arcuate cross- 

 band of white tomentum reaching from the root of the wings on one side to the other ; 

 similar white hairs along the base of the scutellum ; a tuft of longer whitish hairs on 

 the pleurae, especially below the humeri. Abdomen clothed with a yellowish-red and 

 white tomentum ; the white hairs forming a distinct cross-band at the base of the second 

 segment, and a less distinct one at the base of the third ; on each of the same segments, 

 in the middle, a pair of small tufts of black, erect, partly scaly hairs ; segments 4-6 

 thickly covered with silvery scales (the small tufts of black erect hairs in their middle, 

 similar to those on segments 2 and 3, are much less perceptible here) ; the sides of the 

 abdomen have a fringe of hairs among which tufts of large black scales are conspicuous ; 

 the latter alternate with yellowish-red hairs on the anterior and with silvery ones on 

 the posterior portion of the abdomen ; venter clothed with yellowish-red scales. Legs 

 clothed with similar scales, covering the more or less dark ground-colour ; tarsi black. 

 Halteres with a dark brown knob. Wings hyaline, spotted with brown ; the brown at 

 the root encroaches upon the proximal end of the second basal and anal cells ; costal 

 cell yellowish -brown, its tip hyaline ; a large brown spot, in contact with the costal 

 brown, more or less connected with the infuscated posterior cross-vein ; another brown 

 spot covers the bifurcation of the second and third veins ; a small cloud in the marginal 

 cell, below the tip of the auxiliary vein ; an irregular cross-band of more or less coales- 

 cent spots begins at the tip of the first vein and reaches the cross-vein at the base of the 



