DIPTEKA. 231 



breadth exceplinj the hind border ; wing-ribs pitchy ; veins black ; poisers 

 tawny. Length of the body 4 lines ; of the wings 9 lines. 



Cape. 



Syrphcs Cranapes, Mas et Fein. 

 Chalybeus, capite fiavo, thoracis lateribus scutelloque fulvis, abdomine 

 piceo, ventre fasciisque quatuor Jlavis, fascia la interrupta, 2a 3a-que 

 integris, 4a apicali ad discum picea, anteiinis fulvis supra piceis, pe- 

 dibus Jlavis posticis fulvis, alis limpidis. 



Allied to S. Ribesii. Head yellow, paler in front, whitish and clothed 

 with pale yellow hairs behind ; a brassy spot about the eyelets joins by an in- 

 distinct stripe a triangular chalybeous spot above the base of the feelers, this 

 spot is very small in the male ; crown thinly clothed with black hairs : 

 eyes red : feelers tawny, pitchy above ; sixth joint tawny : chest and breast 

 steel blue, clothed with tawny hairs ; scutcheon and sides of the chest tawny : 

 breast tinged with gray : abdomen elliptical, pitchy, much longer and 

 broader than the chest, tinged u-ith steel blue, adorned ivith four very broad 

 yelloiv bands, the first interrupted and angular ; second and third straight 

 and entire ; fourth at the tip, its disk pitchy ; underside yellow : legs ijel- 

 low;. tips of the feet pitchy ; hind legs except the base of the thighs tawny : 

 wings colourless ; wing-ribs tawny ; veins black, tawny at the base ; brands 

 brown. Length of the body 5i lines ; of the wings 12 lines. 



East Indies. 



Syrphus Obsua. 

 Chalybeus, thorace antico scutelloque fulvis, abdomine ferrtigineo ad dis- 

 cum cya)ieo-piceo,f asciis flaiis una interrupta duabus integris dua- 

 busque parvis apicalibus ornato, pedibus fulvis, alls limpidis. 



Head wanting : chest and breast steel blue : chest clothed with tawny 

 hairs ; front and scutcheon tawny : breast tinged with hoary, clothed with 

 whitish hairs : abdomen dark ferruginous, nearly elliptical, longer but 

 hardly broader than the chest, partly pitchy with a bluish tinge, adorned 

 with Jive yelloiv bands, the first interrupted, the second and the third entire, 

 very slightly arched, the fourth and the fifth very small at the tip : legs 

 tawny ; feet pitchy towards the tips ; hind-legs darker than the other pair : 

 wings colourless ; wing-ribs tawny ; veins black, tawny at the base ; brands 



