. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. â I'l' â ,:t liii "â :â :\iv. i â i'f! (* â ii!;> ⦠â â â '^â 'â ';.!:,i'..-. 11 rr,.'*q:'-:;'. 140 DIPTERA OP NORTH AMERICA. [part III. dinal vein. The posterior orossvein is covered by a brownish- blacli spot, wliieli is especially expanijed near llie posterior margin and the anterior end of which is connected by an ochre-yellowish or somewhat brownish-yellow coloring with the third spot of the anterior margin, thus forming a complete crossband, somewhat expanded posteriorly and tinged w
. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. â I'l' â ,:t liii "â :â :\iv. i â i'f! (* â ii!;> ⦠â â â '^â 'â ';.!:,i'..-. 11 rr,.'*q:'-:;'. 140 DIPTERA OP NORTH AMERICA. [part III. dinal vein. The posterior orossvein is covered by a brownish- blacli spot, wliieli is especially expanijed near llie posterior margin and the anterior end of which is connected by an ochre-yellowish or somewhat brownish-yellow coloring with the third spot of the anterior margin, thus forming a complete crossband, somewhat expanded posteriorly and tinged with yellowish in the middle. iSonietimes, however, the brown spot upon the posterior crossvcin is somewhat more isolated from the yellowish coloring and exteiiils in the direction of the half-crossband, formed by the fourth spot on the anterior margin. This less common variety is the one described by Say, 1. c.; the ordinary picture is represented on Tab. VIII, f. 2!), of the present volume. On the anterior side of the sixth longitudinal vein there are two black spots of only moderate size and rounded shape. Of them, the second only crosses that vein, gradually to fade away. Between the second costal spot and the second of the two spots of the sixth vein, there is a very large oval ochre-yellowish or more brownisji- ochreous spot; it reaches on one side as far as the posterior basal cell, and assumes within tl»e marginal cell a rather dark-l)rown coloring. The veins of the wing are black or brownish-Iilai-k inside of the picture, clay-yellow elsewhere. The third and fourth longitudinal veins converge towards their end a little more than in the preceding species. Hab. United States. Observation.âI possess six female specimens and no male, but have seen the latter in other collections. It does not show any perceptible difference from the female, except in the sexual marks. Gen. III. no7. gen. Charact.â Gpnornl appearance almost Trypeta-like. Fron
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectd, booksubjectinsects
