﻿46 Anncds of the Sonth African Museum. 



and spicules are black ; hind femora with a complete row of 8-10 spines 

 below. Wings with a fuscous basal comb and Avith dai'k yellowish 

 veins ; they are yellowish-inf uscated at base and along the fore border, 

 and greyish-hyaline on the rest. Discoidal cell obtuse at end ; second 

 longitudinal vein undulated ; third posterior cell much narrower than 

 the second ; anal cell broadly open. 



A very small female specimen (only 4 mm. in length) from 

 Namaqualand, O'Okiep, 1885 (L. Pcringuey), has the frons with 

 parallel sides and about as broad as the eye ; the thorax is black on 

 the back, with 4 longitudinal greyish stripes, 2 of which are on the 

 dorso-central lines and 2 on the sides ; the abdomen with rather 

 distinct pale yellowish bristles at hind border of the segments. 



ANASTOECHUS, Osten-Sackeu (1877). 



This genus is well represented in the South African fauua — a fact 

 entirely unknown hitherto, and even not suspected before. The 

 species can be easily distinguished from those of the preceding genus, 

 not only on account of the characters given in the table, but also by 

 the following ones : The face is white-haired ; the vanderside of body 

 is white-haired ; the spines of the legs are always strong and always 

 yellow or white ; there are often strong bristles on the face and the 

 basal joints of the antennae are usually of a red colour ; the abdominal 

 fur is long and usually tuft-like, and between it there are usually 

 strong and long bristles at the hind border of the segments ; the 

 basal comb of the wings is very often yellow or Avhite. 



The species in the collection can be distinguished as follows : 



1 (12). Body without a silvery pubescence above and always with distinct 



bi'istles on the abdomen ; scutellum red, at least on the disc. 



2 (3) Genae with a distinct comb of strong", yellowish bristles ; wings 



variegated, with the marginal cell completely filled with brown to 

 the end, and with a yellow basal comb ; antennae with red base. 



riihricosus, Wied. 



3 (2). No distinct peristomial comb ; wings with the marginal cell hyaline 



— at least in its terminal half. 



4 (7). First joint of the antennae very short, not longer than twice the length 



of the second ; face of the male without bristles ; hairs of thorax 

 very short ; femora mainly yellow ; wings of the male dimidiate. 



5 (6). First an tennal joint red ; eyes of the male rather sej^arated ; wings 



with the basal comb black and yellow . . varipecten, sp. nov. 



6 (5). First antennal joint bhick ; eyes of the male more widely separated ; 



wings with the basal comb entirely yellow . . ceri, Loew. 



7 (4). First joint of the antennae rather long, three times the length of the 



second ; hairs of tliorax long ; femora mainly black. 



