. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. ^,t?i;l 'ill ,;' Mi 236 NORTH AMERICAN TUYPETINA. medium length, broad and broadly tnincatH; winps with narrow pale brownisli rivulets and with a fourtli longitudinal vein wiiioli is nut ourveil forwards at the tip. Loug. corp. , cum terubru ; luug, al. Pale clay-yellowish. The head resembles that of T. frntria in â shape, only the front is somewhat broader and the vertical diiiiiie- ter <.if the eyes is a little smaller; the anterior edjre of the nunitli is more projeeting. On the
. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. ^,t?i;l 'ill ,;' Mi 236 NORTH AMERICAN TUYPETINA. medium length, broad and broadly tnincatH; winps with narrow pale brownisli rivulets and with a fourtli longitudinal vein wiiioli is nut ourveil forwards at the tip. Loug. corp. , cum terubru ; luug, al. Pale clay-yellowish. The head resembles that of T. frntria in â shape, only the front is somewhat broader and the vertical diiiiiie- ter <.if the eyes is a little smaller; the anterior edjre of the nunitli is more projeeting. On the border of the front the descrihcri specimen bears, on each side, three long, but rather weak black bristles. AntenniB of a more saturate yellow, not reaching the edge of the mouth; their third joint is rounded at the tip; aristn blackish, yellow towards the basis, with a very short pul)(!scc:ice. Rostrum and palpi pale yellow, the latter not reaching bcvdnd the anterior edge of the oral opening. Thoracic dorsum witli a very thin, whitish bloom, only the double middle stripe iind the narrow lateral stripes not pollinose, rather shining and somewhat darker than their surroundings. The posterior end of the thoracic dorsum and the scutellum likewise without pol- len, shining, very pale yellow; a not very broad yellowish stripe runs from the humeral corner to the root of the wings. The scutelluin is convex and not very large; in my speciincn it has three bristles on one side and only two on the other, .so that I cannot say whether the normal number of the bristles of the scutellum is six or four. The bristles of the thorax and of the Kcutellum, as well as the short pile of the thoracic doisnni, are black. Metathorax distinctly inl'uscated on its superior inargiu audits middle line. Abdomen shining, with short black pile; the third and fourth segments have, each at its basis, a chestinit crossl)and, interrupted upon its middle, while upon the scciukI segment only a lateral beginn
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectd, booksubjectinsects
