156 INSECUTOR INSCITI^ MENSTRUUS 



apical light band, on the hind legs they are dark, with a narrow 

 light line, and basal and apical bands. The third tarsals on 

 all the legs are dark, with basal white bands, but the apical 

 bands on the fore legs are lacking or reduced to a few white 

 scales, on the mid legs they are represented by a few white 

 scales, and on the hind legs show only a narrow white apical 

 band. The fourth and fifth on the fore legs are dark, on the 

 mid legs are dark, with narrow basal white bands, and a few 

 white scales at the apex, more marked on the ventral side, on 

 the hind legs the fourth tarsal is dark with basal and very 

 narrow apical white bands, the fifth joint is entirely white. 

 All the ungues uniserrate. 



Wings pale, largely white scaled ; the costa almost entirely 

 white scaled to near the junction of the subcosta, a few dark 

 scales distad to this ; the subcosta is also largely white scaled, 

 but there are a few dark scales intermixed ; the first long 

 vein is light scaled near the root but otherwise rather evenly 

 mixed throughout its length ; second long vein practically white 

 scaled to the forks, then the lateral scales are dark on both 

 forks, and a dark spot at the tip of each ; the third vein is 

 entirely dark scaled, only the ventral scales being white ; it is 

 carried toward the root of the wing by a well marked incrassa- 

 tion. The stem of the fourth vein is entirely white scaled, 

 with the exception of a few dark scales near the fork of the 

 fifth, till the fork, both branches of which are dark scaled, 

 except the ventral scales which are white ; the fifth vein is 

 dark scaled throughout, except the ventral scales, which are 

 white ; the sixth vein is white scaled, with an occasional dark 

 scale. The wing fringe is largely white but the border scales 

 are dark. The first submarginal is a little longer than the 

 second posterior, its stem a little more than half the length 

 of the cell, that of the second posterior a trifle shorter. The 

 basal cross vein about double its length distant. The halteres 

 are light, very fragile looking and covered with white scales. 



Length : body about 9 mm., proboscis 4 mm., wing 5.5 mm. 



Male : The general coloring is much as in the female. The 

 head is mostly covered by white curved flat and forked scales, 



