526 Prof. W. J. Dakin and Mr. M. G. C. Fordham on 



— as well as general form, mark off Neosaropogon from tlie 

 new genus Questopogon. It belongs to the group of Dasypo- 

 goninaB in wliich tlie fore tibiae bear stout curved spines. 

 The third joint of the antennae bears a short terininal style 

 and is about If times the length of the two basal segments 

 together. The fourth posterior cell of the wing (text-fig. 2, B) 

 is open. Tlie abdomen is not club-shaped. Tlie body is 

 robust and dark in colour (black, with dark legs, reddish 

 below), with metallic-like tomentum on shoulders of thorax, 

 and with bands of pale yellow hairs on abdomen which give 

 rise to iridescent markings according to the direction of the 

 light falling on the body. 



Face with yellow tomentum. Tubercle extending up to 

 antennaj. Moustache abundant and white or pale yellow in 

 colour, extending up to base of antennae. 



Palpi black, with black and white pubescence, bearing 

 slightly stronger black hairs at apex. 



Antennce black, with third joint lf-l| times the length of 

 the first two combined. Style short and with abrupt concave 

 apex. 



Thorax. — Black, with golden tomentum on shoulders and 

 laterally; delicate black hairs on dorsal surface, with very 

 stout white bristles on marked postalar calli and a few similar 

 bristles on posterior margin of scutellum. 



Abdomen, — Shining black, depressed, and comparatively 

 broad, gradually diminishing in width to the posterior 

 segment. The abdomen presents a banded appearance in 

 certain lights, due to the arrangement of a close covering of 

 pale yellow iridescent hairs. Each segment possesses laterally 

 a conspicuous area of yellow-bronze tomentum — this is con- 

 fined laterally and to the posterior half of each segment. 

 The hairs on the dorsal surface of the abdomen are directed 

 outwards (to the right and left sides) on the posterior half of 

 each segment, but on the anterior half of each segment the 

 hairs are directed inward toward the median line. The hairs 

 on the tomentum areas are directed outwards. The hinder 

 segments are not so well clothed with hairs, the two posterior 

 ones possessing only a poor vestiture. 



Legs. — Coxse black, with white hairs. Femora red below, 

 dark red, almost black, above. Tibias dark reddish brown, 

 the first and second with black towards the distal end. Tarsi 

 black. All tibiae and tarsi with stout and long white bristles. 



Wings. — Not altogether clear. Marginal cells just slightly 

 brown. Structure and venation as illustrated (text-fig. 2, B). 

 Fourth posterior cell open. 



