Head almost uniform light yellow, between the ocelli tinged with brown. Eyes black, bare not approximated to each other. Front broad, wider anteriorly, with yellow pollen on the sides, a longitudinal callosity more whitish, extending from the ocelli to the beginning of the antennal prominence; in dried specimens a variable impressed line on each side of this callosity. Antennae situated on a distinct transverse prominence, yellow, the third joint more reddish; second joint almost annular, third tapering quite symmetrically, composed of eight annuli. Face yellow, strongly protuberant, shining. Proboscis reddish, directed forward, reaching but little beyond the antennae. Palpi slender, long, yellow, with yellow pollen and abundant blackish hairs. Posterior orbits wide, conspicuous, with yellow pollen. Thorax whitish yellow below, more brownish above, with minute, appressed, silvery yellow pile; on the anterior border just a trace of a slender, median, reddish line; on each side a broad, indistinct reddish stripe, interrupted along the transverse suture. Scutellum short, as wide as the head, yellow. Abdomen short, broad, covered with appressed shining silvery-yellow pile; seven visible segments, the last narrow, but little protruded, showing a distinct emargination. Legs uniformly light yellow, the claws black except at baxe. Spurs of moderate size on middle and hind tibiae. Wings hyaline, with a deep brown cloud extending across them, including the follow- ing parts: the stigma, all of the marginal cell except the proximal end , all of first submarginal, all of the second except tip , all of the first posterior except posterior half of the distal end, the proximal half of the discal, all of second basal, and middle of anal. There is a characteristic small clear spot in the second basal, at the anterior distal angle. The cloud is clearly defined behind, but fades more gradually in front. The branch of the third longitudinal vein shows a tendency to emit a stump of a vein. In one of my specimens the vein separatig the third and fourth posterior cells is obsolete for the greater part of its course. Length 12 to 13 mm. Width across expanded wings, 28 mm.
[Label 1] Goniops hippobosoides Aldrich Type ['Type' is underlined] of genus and species; [Label 2] Cotype 53627 No. U.S.N.M.; [Label 3] Collection JMAldrich; [Label 4] Penna. Klages
Record Last Modified:
16 Mar 2016
Animalia Animalia Arthropoda Arthropoda Insecta Insecta Diptera Diptera Tabanidae Tabanidae Pangoniinae