﻿Ou the Bonibyliid Fa mut u/ Sout/i Africa {Diptera ). 97 



froiis with a loiig-itiidinal, black, median stripe, wliicli is aii<^-ularlv 

 dilated, in front ot" the ocelli and forms a transverse band above the 

 root of the antennae. 



Antennae quite black, with the thii'd long joint, about linear, 

 ciliated above, with very short terminal style at its upper angle ; 

 peristome and chin yellowish, with long and soft white hairs. Palps and 

 proboscis <|uite black. Thorax 1)lackish and opaque on the back, 

 with aline dark grey tonientum and with whitish hairs ; the Inuneri, a 

 narroAv stripe aliove the notopleural line, a broader stripe above the 

 root of the Avings and the postalar calluses yellow. The pleurae are 

 yellow and opaque, with black spots on the mesopleura and on the 

 breast ; the hairs are long and whitish. Scutellum yellow, with a very 

 narrow basal black stripe, and with a broader black apical border, 

 which is, however, not visible from above. Post-scutellum and meso- 

 phragm black ; haltères and squamulae whitish. 



Abdomen rather swollen and convex, quite opaque, clothed with 

 whitish hairs ; each segment is of a deep black colour, Avith a propor- 

 tionally br<jad, equal and complete yellow stripe at the hind border ; 

 the second segment has the black part twice as broad as that of the 

 following segments ; venter with the black and yellow parts of about 

 the same width, and with whitish hairs. Legs reddish, with pale 

 yellow coxae, infuscated tibiae, and blackish tarsi ; anterior femora 

 with a black longitudinal stripe on the outer side ; trochanters 

 blackish ; hairs whitish. Wings greyish hyaline, with yellowish 

 stigmae ; veins black, with yellowish base ; discal cross-vein placed 

 at about the middle of the discoidal cell ; cubital fork about three 

 times as long as broad at end ; anal cell briefly stalked. 



Phthiria lanigera, sp. nov. 



A small, entirely dull black species with whitish wings, entirely 

 clothed Avith very long, soft and dense whitish hairs. 



Type çj , from Cape Town (K. H. Barnard) ; ? (rubbed) from 

 Hottentots Holland Mtns., 4000 ft.. Cape. 



(^ . Length of the body 45 mm. ; of the wing 45 mm. Occiput, 

 fi-ous and face clothed everywhere with long, whitish hairs. Eyes 

 touching for a length a little longer than the black, prominent ocellar 

 triangle which bears only scai'ce and darkish hairs. The frons above 

 the antennae is not triangular but transverse, very broad laterally, 

 merging gradually into the cheeks ; it is very prominent in profile like 

 the cheeks ; genae very narrow, linear. Antennae entirely black ; first 

 joint twice as long as the second, with white hairs, Avhile the latter is 

 clothed above with short, dark hairs ; third joint more elongate than in 

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