. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. KfCj^ll â¢M !"> DESCRIPTION OF THE SPKriES. 277 tlio Intornl frontal bonier arc sliiiiiriL'; upon the first, almost without cxecplion, n very small, deep hlnek lon^nludinal dot is perceptible ; near the antennae, at the orbit of the eye, there is a deep black dot and a black spot in the middle of the posterior orbit The face is deeply excavated, shininlaek spot, on each side an ehnijrated, larfrer one, descending frouj the lower anjrle of the eye to the oral margin; the oral opeidng is very
. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. KfCj^ll â¢M !"> DESCRIPTION OF THE SPKriES. 277 tlio Intornl frontal bonier arc sliiiiiriL'; upon the first, almost without cxecplion, n very small, deep hlnek lon^nludinal dot is perceptible ; near the antennae, at the orbit of the eye, there is a deep black dot and a black spot in the middle of the posterior orbit The face is deeply excavated, shininlaek spot, on each side an ehnijrated, larfrer one, descending frouj the lower anjrle of the eye to the oral margin; the oral opeidng is very large, somewhat drawn upwards anteriorly. Palpi yellowish, broad, reaching to the anterior edge of the oral opening, with black pile at the tip, and with yellowish hairs else- where. Proboscis brown, sometimes yellowish-brown, rather stout, not geniculate. The thorax unicolorous, yellowish-reil or reddish clay-yellow, opacpie; the usual bristles, of which there are two pairs on the middle of the dorsum, are black, the short pile is pale yellowish. Scutellum somewhat paler 3-ellow and rather shining, with erect yellowish bristle-like pile upon the middle and with four black bristles; the two apical ones are inserted upt)n black dots, while round the basis of the two ante- rior ones only a darker shade of the ground color is perceptible. The abdomen has the same coloring as the thorax and no spots, or only a trace of two longitudinal, contiguous rows of somewhat darker spots; all the pile and bristles upon it are yellowish ami only a certain number of the bristles upon the border of the last segment are usually blackish. The flat ovipositor is almost as long as the four posterior abdominal segments taken together, red, blackish towards the tip. Feoi, as well as the bristles en the under side of the front femora, yellow; often, however, .some of the bristles are black; the front femora have, a short distance before their end, on the outer side, a sniall black dot;
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectd, booksubjectinsects
