(543) 



^■^■^Xi, -. 



w.-wwMi 



FIGURE 765. Aethaloptera rossicaMart. Labrum (A), maxillolabium (B) 



Labrum (Figure 765, A) broadly membranous near anterior margin. 

 Dorsal sclerite light brown, with rounded anterior margin; posterior-angle 

 sclerites in form of narrow reddish rods. Straight, dense, light spines 

 form a row on surface near margin with an angle in middle; similar light 

 setae, but in smaller numbers, also on anterior membrane; only primary 

 seta 5 large, brownish, situated lateral to row. Hairs at anterior and lateral 

 membranous margin very dense; anterior groups of dense, yellowish, curved 

 541 hairs situated on 2 tufts of shorter hairs in anterior angle; lateral group, 

 the largest, consisting of long curved hairs; small spinules near base of 

 lateral group of hairs. 



Mandibles long, curved inward near base. Left mandible with 2 small 

 teeth on upper blade, near large apical tooth; 2 teeth of lower blade finely 



620 



