OCR Text |
Show 1888.] INSECTS OF CHRISTMAS ISLAND. 555 edged with brown, except towards the anal angle. Neuration nearly as in the last species, but the outer row of transverse cells less numerous. RlCANIA HYALINA, Sp. n. Exp. al. 15 millim.; long. corp. 5 millim. Male. Head yellowish ; the carinae black, the clypeus marked with brown lines between them ; the middle carinae not projecting on the vertex, which is deeply and triangularly depressed in the middle ; thorax reddish above, the middle carinae yellow; abdomen brown above, the sides marked with yellow, and the segments bordered with green behind. Under surface of the body yellow, the femora, the extremities of the first five segments of the abdomen, and a large spot at each side at its extremity green; the base of the first five abdominal segments rich cream-colour. Allied to R. pellucida, Spin., and R. panorpceformis, Germ. DIPTERA. AsiLID-E. LAPHRIA NIGROCERULEA, sp. n. Exp. al. 28 lin.; long. corp. 14 lin. Head black ; the hairs on each side in front within the eyes silvery white; beard and proboscis black; hairs at the back of the eyes slightly greyish. Thorax above inky black, hardly shining; the front, sides, and sutures clothed with white hair, inclining to silvery. Legs inky black, more shining than the thorax, clothed with white hair ; pulvilli brown. Abdomen deep purple, shading into green at the extreme ends of the segments, and with three spots formed of white hairs on each side of the first three incisions. The first segment of the abdomen is slightly expanded; the remainder are of nearly equal width to the extremity, the last segment being slightly narrowed and subtruncated. Wings hyaline brown, with a very slight purplish iridescence, and, towards the base, more transparent; halteres of a conspicuous orange-brown. Allied to L. aurifacies, Walk., from Borneo, and to several other species from the Malay Archipelago. MuSCID_E. S T I L B O M Y I A J U C U N D A , sp. n. Long. corp. 7|-10 lin. Head black; middle of face, antennae, &c. hoary or lead-colour; sides white ; mouth-parts reddish ; hinder orbits narrowly white. Thorax and abdomen green, strongly punctured; front of prothorax edged with hoary ; abdominal segments narrowly edged behind with blue-black; thorax beneath, in the middle and hinder portion, as well as the legs, black; sides of front part of thorax green ; wings hyaline (?) (discoloured in all the specimens) ; halteres white ; spines on the body and legs black. Several specimens, without date of capture. Allied to S. decrescens, Walk., from Morty Island. |