﻿624 Prof. Mario Bezzi's Report on a Collection of 



Hyalanthrax by Osten-Sacken in 1887, and Aspiloptcra by 

 Kiinckel d'HercuJais in 1905. 



The collection has the three following species : — 



1 (2). Face with black and yellow hairs intermingled ; abdomen 



with scaly hairs on the sides, and a black tuft towards the 

 middle ; end of the abdomen with white tufts ; tibiae 

 black ....... paniscoides, sp. n. 



2 (1). Face without black hairs ; abdomen without black tuft on the 



middle of the sides and without white tufts at the end ; 

 tibiae yellowish. 



3 (4). Abdomen with black tufts on the sides before the end 



flarescens, Loew. 



4 (3). Abdomen without black tufts before the end . albescens, Loew. 



31. V ilia i^aiiiscoif] cs, sp. nov. 



(^ 9- Length (of 3 specimens), 11-13 mm. 



Near panisms, Eossi, but very distinct on account of the black 

 hairs on the face, and the lateral tufts of black scaly hairs on the 

 third abdominal segment. A. dizona, Loew (1860), seems to be an 

 allied species. 



Frons black, that of the male very narrowed, clothed with black 

 hairs, yellow hairs being present only upon the antennae, more 

 abundant in the female ; face with yellow hairs, but with many 

 black hairs intermingled, chiefly towards the middle. Antennae 

 black, very short, the terminal style longer than the whole antenna ; 

 the two basal joints bear black hairs, which in the male form a very 

 dense fringe. Thorax clothed with yellow-grey hairs, which in 

 front are very long and dense, and in the middle and hind portion 

 are shorter and darker ; pleurae with dense whitish hairs and a very 

 thick tuft of white hypopleural hairs. Squamulae fuscous, with 

 silvery white fringe. Haltères yellowish-white. Abdomen black, 

 clothed with long grey hairs, which towards the middle are very 

 dark ; in the male there are indistinct transverse bands ; the 

 sides of the first segment with dense white hairs ; on each side of the 

 third segment is a large tuft of black scaly hairs ; fourth with whitish 

 tuft, fifth and sixth with scaly black hairs ; at the end a white tuft 

 on each side, as in ijanisms. Underside black, with greyish hairs. 

 Legs wholly black, with black bristles and scattered yellowish scales. 

 Wings hyaline, narrowly yellowish at the base, with black veins ; 

 basal comb well developed, in the male black with silvery scales at 

 the base, in the female yellowish with yellow scales ; second vein 

 not strongly bent at the end ; discal cell very long ; rather narrow, 

 the small cross-vein placed before its middle. 



