WALKEE ON DIPTEEA OE AETJ ISLANDS. 97 



testaceia, pedibus piceo et testaceo vaviis, alls fuscis basi cinereis, 

 halteribus testaceis. 

 Female. Blackish chalybeous. Head with whitish tomentum, except- 

 ing the callus on the vertex and another on the front ; mouth and 

 antennae black; scutellum tawny; abdomen beneath with two very 

 broad testaceous stripes extending from the base to two-thirds of the 

 length ; legs dingy testaceous, femora and hind tibiae partly piceous, 

 hind femora thick, piceous, slightly chalybeous, armed with spines 

 beneath; wings dark brown, cinereous towards the base ; halteres tes- 

 taceous. Length of the body A^ lines ; of the wings 8 lines. 



Gen. Orthonetjea, Macq. 



77. Orthoneura basalis, n. s. Foim. Chalybeo-nigra, nitens, cano- 

 subtoraentosa, antennis ferrugineis basi fulvis articulo tertio elongate, 

 tarsis posterioribus piceis, tarsis anticis tibiisque anterioribus fulvis, 

 his nigro fasciatis, alis subcinereis fusco fasciatis, halteribus testaceis. 



Female. Chalybeous-blaek, very shining, partly and slightly covered 

 with hoary tomentum ; antennas tawny, third joint ferruginous, long, 

 linear, tawny at the base ; anterior tibiaj tawny with a black band, 

 fore tarsi tawny, hinder tarsi piceous; wings greyish, with a sub- 

 apical brown band which is abbreviated hindward, veins towards the 

 base and halteres testaceous; alulae whitish. Length of the body 

 3^ lines ; of the wings 6 lines. 



Gren. Syephus, Fabr. 



78. Syrphus aegrotus. Fair. See Vol. I. p. 124. 



79. Syrphus ericetorum, Fahr. Ent. Syst. iv. 287. 34. 

 Inhabits also Sierra Leone, Hindostan, and Java. 



Pam. MTJSCID^, Zatr. 



Subfam. Tachinides, WalJc. 



G-en. Masiceea, Macq. 



80. Masicera notabilis, n. s. Mas. Nigra, longiuscula, capite 

 abdominisque fasciis albis, frontalibus atris, pectore cano, scutelli 

 margine postico abdominisque lateribus ferrugineis, alis cinereis, venis 

 fusco marginatis. 



Male. Black, rather long, with long stout bristles ; head white, silvery, 

 with white hairs behind and beneath, frontalia deep black, widening 

 slightly to the face, faciaha without bristles, epistoma not promi- 

 nent ; eyes bare ; palpi ferruginous at the tips ; antennae extending to 

 the epistoma, third joint shghtly widening towards the tip, nearly 

 four times the length of the second, arista slender, very much longer 

 than the third joint; pectus and sides of the thorax hoary, hind 

 border of the scutellum ferruginous ; abdomen fusiform, much longer 



7* 



