﻿Oil the BoiiiJii/Jiid Fauna of South Africa (BqAera). 23 



18 (15). No spots along the bind bordei- and at ond of the anal cell ; smaller 



size . . . . . ... brannsi, sp. nov. 



19 (l-l). Marginal cell entirely brown, without hyaline spot at end; no spots 



on the hind border, nor at end of small cell ; abdominal bristles 

 dark yellow ; species of very small size . . punctatelhis, sp. nov. 



20 (i;5). Marginal cell broadly hyaline at end . . _pH»icii/er, sp. nov. 



21 (12). Spines of the legs dark yellow ; abdominal bristles yellow, and hardly 



longer than the hairs ; peristomial comb yellow, or rarely black in 

 part. 



22 ('2'.]). Marginal cell filled with brown to the end ; the cross-vein between 



the discoidal and the second posterior cell is not marginated with 

 l)rown ...... pentaspihis, sp. nov. 



23 (22). Marginal cell entirely hyaline ; the above-named cro.ss-vein is mar- 



ginated with brown .... obesus, sp. nov. 



24 (1). Hcutellum red ; bristles of the genae often wanting; basal comb of 



the wings usually yellow or white ; Avings entirely hyaline, mainly 

 without any dark pattern, or with alight yellowish tint near the base 

 and along the fore border, or with very small and less distinct fuscous 

 sjiots on the cross-veins. 



25 (28). (jJeuae with some strong yellow bristles, which form the usual 



peristomial comb of all the preceding species ; body mainly yellow- 

 haired. 



Scutellum entirely red behind ; (liseoidal cell without a prominent 

 angle below ..... spinifjarbus, sp. nov. 



Scutellum with a black hind border ; discoidal cell with a prominent 

 angle inwards, and there jDrovided with a stump, angulosus, sp. nov. 

 Genae without distinct bristles, but if they are rarely distinct, the 

 body is mostly white-haired. 



Frons of female of the usual moderate breadth ; wings usually not 

 punctate. 



Scutellum with a broad black hind border : wings i-ither infuscated 

 and punctate, with a black basal comb . . nigripecten, sp. nov. 



Scutellum without black hind border ; wings with a yellow or white 

 basal comb. 



Discal cross-vein before the middle of the discoidal cell ; wings 

 lightly infuscated at base ; thorax of male with brown hairs. 



peringueyi, sp. nov. 

 Discal cross-vein on the middle ; wings entirely hyaline, even at 

 base ; thorax of male white-haired . . argentifer, 'WaW. 



Frons of female twice as broad as iisiial ; wings hyaline, punctate, 

 with till' discal cross-vein before the middle of the discoidal cell. 



inolitor, Wied. 



BOMBYLIUS PURPUREUS, sp. nov., cf , 9 • 



Closely allied to micans, l)ut distinct ])y the bright purple colour 

 of the macrochaetae of the comb and of the thoracical stripes, and 

 also by the more reddish fore liorder of the wings. 



Type c? fi'om Klipfontein, Naniaqualand (Cape), August, 1890 



