﻿134 



^5 (^4) Scutelluni with a few excessively short hairs on mar- 

 gin, which are hardly visible; abdomen with dense 

 fuscous tomentum on the dorsum over a large part 

 of the surface. 

 25a (25b) Posterior tibiae dark except at extreme base; abdo- 

 men wath the second and following segments black 

 at the base, and with rather indistinct pale apical 

 bands, narrowed or interrupted at the middle . nwiias. 

 25b (25a) Posterior tibiae entirely pale or partly infuscate; ab- 

 domen with dark fuscous tomentum, not banded 

 above. 

 25c (25d) Posterior tibiae almost uniformly yellowish . .A^fn'/'c/t'/. 

 25d (25c) Posterior tibiae more or less infuscate in parts.. hclliio. 

 26 (17) Wings with the third costal segment much longer 

 than the fourth, sometimes twice as long. 



Whole body nearly uniformly covered with cinereous 

 tomentum cinerascciis. 



Body not so clothed; more or less variegated with 

 black and grey or whitish tomentum. 



Tarsal joints black above hylaciis. 



Tarsal joints pale, except the api'cal joint. 



Larger and robust species (length over 4 mm.) apical 

 margin of scutelluni fringed with some longish and 

 very distinct hairs. 



Hypopygium with a thin outstanding rounded 

 lamella fallax. 



Hypopygium with an elongate, dull area marked out, 

 but no strong lamella dolicJiostiguuis. 



Smaller species (length under 4 mm.) apical margin 

 of the scutellum with only a few very short fine 

 hairs, easilv overlooked. 



Hypopygium with a thin lamella strongly outstand- 

 ing laiiicUifcr. 



Hypopygium with an elongate channel or impression, 

 but without a strong lemella coinitans. 



Antennae with the third joint not sharply pointed at 

 apex, nor acimiinatelv produced. 



Abdomen except towards the base entirely shining, 

 somewhat aeneous, and not variegated with ■tomen- 

 tum crypsioholcns. 



39 (38) Abdomen more or less variegated with pale and dark 

 bands or spots. 



I 



