. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. 1 \ m f:\ M, f;)?. m •;^':^: -*<'.. 78 DIi ^ERA OF NOUTII AMERICA. [part III. The oral opening is cut ol)liqiu'Iy upwards; the but little developed clypeus is tinged with bliiikish; tlie rather broad palpi are usually tinged with yellowish-red towards the tip, sometimes they are altogether The thoraeic dorsum )ias an extended ferruginous-brown spot upon it, formed l)y the almost complete coalescence of a broad intermediate stripe with two broad lateral stripes, which are abbreviated
. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. 1 \ m f:\ M, f;)?. m •;^':^: -*<'.. 78 DIi ^ERA OF NOUTII AMERICA. [part III. The oral opening is cut ol)liqiu'Iy upwards; the but little developed clypeus is tinged with bliiikish; tlie rather broad palpi are usually tinged with yellowish-red towards the tip, sometimes they are altogether The thoraeic dorsum )ias an extended ferruginous-brown spot upon it, formed l)y the almost complete coalescence of a broad intermediate stripe with two broad lateral stripes, which are abbreviated in front. Tin; nuta- and the greater part of the pleura) are often tinged with dark pitch-brown. The coloring of the abdomen on the lirst two segments, and also at the basis and along the middle of the fol- lowing ones, often becomes pitch-brown or brownish-black, this is especially often the case in male specimens. The first abdominal segment is very much elongated in both sexes; in the male it is not quite as long as the three remaining segments taken together; in the fe. lale, the last four segments are so much shortened, that, taken together, they are much shorter than the first joint. The capsule-shaped ovipositor is conical, beut downward towards its end. The feet are ochre-yeilowish, but the femora brown up to the tip; the tibiae likewise are more or less infuscated, except the basis and the extreme tip. Wings large, the greater portion of them is uniformly tinged with brown, which color covers the costal, marginal, submarginal, the first posterior and the discal cells, also the basal cells, with the exception of a pale stripe in the anal cell, moreover, this color forms a broad border along the inner portion of the second pnsto- rior cell, and a narrower one along the anterior margin of the third posterior cell; within this brown coloring some specimens do not show any paler spots, the majority, however, show, in the submarginal cell, a little beyond the sma
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectd, booksubjectinsects
