. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. SCELLUS. 209 II11' middle of llic Inst sofrinciit of tlio foiirtli longitudiiml vein tliuru is ii ^•riiv-ljliili spot of (Miiisidci-ahlt' si/c. Hah. Fort Kcsoliitioii, Jliidsoii's i>ii}- Territory. (Ivtiiiiicott.) 4i §. filifrr, nnv. sp. %,— dorso clni-n'o, opnrn, abiloniine ciiprco, fiiiorfo-polliiioso, sulxipaco, lialteiihiiH alliiilis, alls livaliiiis iu luisi subaliMdis, apicciii versus ciiu-rea-striatis ])iiiii:tis4ii(! (IikiIuis iiui- jusculis nigriciintibiis, alteio didyiuo in vci


. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. SCELLUS. 209 II11' middle of llic Inst sofrinciit of tlio foiirtli longitudiiml vein tliuru is ii ^•riiv-ljliili spot of (Miiisidci-ahlt' si/c. Hah. Fort Kcsoliitioii, Jliidsoii's i>ii}- Territory. (Ivtiiiiicott.) 4i §. filifrr, nnv. sp. %,— dorso clni-n'o, opnrn, abiloniine ciiprco, fiiiorfo-polliiioso, sulxipaco, lialteiihiiH alliiilis, alls livaliiiis iu luisi subaliMdis, apicciii versus ciiu-rea-striatis ])iiiii:tis4ii(! (IikiIuis iiui- jusculis nigriciintibiis, alteio didyiuo in vciiii tniurtversii posteriore, ftltcro simplici in ultimo vtMue loni,'itudinalis (]uarta' segnicnto; lanudiis analibtis niarid angustissiuiis albis, in basi nigri^, la etuniutu aiiit;*; lla- viuantibus. Upper side of the thorax gray, opaciuo ; ab(h)nien copin-r-colored witli gray- ish dust, ratlicr opacjun ; lialterfs whitish ; wings liyaline, wliitisli near the root, with gray striiK-s towanls the tip ; upon tlit^ jiostf'rior transverse vein with a donbh? blackisli sjiiit of considerabhi size, and witli a simi- lar, but single sjiot upon the last segment of the fourth longitudinal vein ; the anal appendages of the male are very narrow, white, blai;k .at the basis and yellowish at the extreme tip. Long. eorp. Long. al. The narrow face is ochro-yoUow. AnteiiiUK Ithick. Front with wliitc dust. Tiiorax l)lackisli hronzc-colored with coppor-culonMi rolloctioiis; on the iipi)t'r .side with tliick wliitish dust, whicli almost c'OiK'eals the groinid-color, opatpie ; upon tlie jdeura' with a somewhat thinner dust of tlie .same color. \'\\n\\ the middle of the njtper side there are two narrow parallel lines of a darker ['olor, which do not reach as far as the posterior maro:in of the thorax. Tlie sctitellum, whieli has two bristles, is of tlie same color as the pleunu. The frround-color of the ahiloinoii is like that of the thorax, is, however, more distinct, not lieinj;


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Keywords: ., bookcentury1800, bookdecade1860, booksubjectinsects, bookyear1864