_Female._ Chalybeous-black, very shining, partly and slightly covered with hoary tomentum; antennae tawny, third joint ferruginous, long, linear, tawny at the base; anterior tibiae tawny with a black band, fore tarsi tawny, hinder tarsi piceous; wings greyish, with a subapical brown band which is abbreviated hindward, veins towards the base and halteres testaceous; alulae whitish. Length of the body 3-1/2 lines; of the wings 6 lines. Gen. SYRPHUS, _Fabr._ 78. Syrphus aegrotus, _Fabr._ See Vol. I. p. 124. 79. Syrphus ericetorum, _Fabr. Ent. Syst._ iv. 287. 34. Inhabits also Sierra Leone, Hindostan, and Java. Fam. MUSCIDAE, _Latr._ Subfam. TACHINIDES, _Walk._ Gen. MASICERA, _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, facialia without bristles, epistoma not prominent; eyes bare; palpi ferruginous at the tips; antennae extending to the epistoma, third joint slightly 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 than the thorax, with a broad slightly interrupted white band on the fore border of each segment, sides of the second and third segments slightly ferruginous; wings grey, veins black bordered with brown, praebrachial vein forming a slightly acute angle at its flexure, near which it is much curved inward, and is thence straight to its tip, discal transverse vein curved inward, parted by less than its length from the border, and by rather more than half its length from the flexure of the praebrachial; alulae white; halteres testaceous. Length of the body 6 lines; of the wings 12 lines. 81. MASICERA? TENTATA, n. s. Nigra, cinereo-tomentosa, capite argenteo frontalibus atris, antennarum articulo tertio basi rufo, thorace quadrivittato, abdomine?, pedibus longiusculis, alis nigricantibus postice cinereis.