. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. PSILOPL'S. 285 at tlicir tip; the inner ones arc sty lifDrni, distinolly loiifjor lliaii the outer ones anil friuji^ed upon tiieir upi)er side witli some few minute li;j;ht hairs; tlie stile-lilvc eentral orj^un is us lonjr us the inner uppenduges and is siuootldy eurved downwards. Tiic eoxio and the long, very slender and very glabrous feet arc yellowish. The fore coxto of the % have a proportionally long, rather close and delicate whitish i>ul)escence ; in the 9 there are, instead of the longer
. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. PSILOPL'S. 285 at tlicir tip; the inner ones arc sty lifDrni, distinolly loiifjor lliaii the outer ones anil friuji^ed upon tiieir upi)er side witli some few minute li;j;ht hairs; tlie stile-lilvc eentral orj^un is us lonjr us the inner uppenduges and is siuootldy eurved downwards. Tiic eoxio and the long, very slender and very glabrous feet arc yellowish. The fore coxto of the % have a proportionally long, rather close and delicate whitish i>ul)escence ; in the 9 there are, instead of the longer hairs, bristles of u white-yellowish coloring. The fore femora of the % have ujion the under side near the basis, three thin yellowish bristles of decreasing length ; in the 9 there are in their stead four stout yellowish bristles. The hind femora of the % have upon the upper side near the basis a few long and very delicate white hairs, which f\re not present in the ?. The plain and slender fore tarsi are in l)oth much longer than the tibis" • they arc still much longer in the % than in the 9 ; the first joint of all tarsi is very elongated, particularly in thw Z ; on the fore tarsi it is about twice us long as the following joints taken together, on the middle tarsi about three times as long, besides they are distinguished by their slenderness, and apparently comi)lete gIal)rousness. The hind tarsi in Ixth are nearly as long us the tibite, their lirst joint in the % somewhat longer than the fol- lowing joints taken together, but in the 9 somewhat shorter. Tegulo! on the margin with only a single quite small Idack dot; their cilia whitish. "NVings hyaline, long and narrow, towards the basis still more narrowed, particularly in the % ; their anterior veins are yellow, the posterior ones more infuscated; the anterior branch of the third longitudinal vein is very long, rather flat and but little curved; the posterior transverse vein is far remo
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectinsects, bookyear1864
