. Monographs of the Diptera of North America [microform] / prepared for the Smithsonian Institution by R. Osten Sacken. Diptera; Insects; Diptères; Insectes. H f flH|^^.^' .nB * nv 1 "1 L ⢠â â ift EXI'LANATION OF THE PLATES. 339 ' 6. Umnobia O. S. ; forct^ps from above, Lalf closed ; tin are coriaceous, movable ; /(/). hooked appendaj^es, consisting of two, closely applied lamels ; the outer one horny ; the inner one appa- rently coriaceous ; e. the anal style ; cc. projecting internal organs ; hb. soft eminences (perhaps rudiments of the large soft lobes of iytcrant»iii)iu


. Monographs of the Diptera of North America [microform] / prepared for the Smithsonian Institution by R. Osten Sacken. Diptera; Insects; Diptères; Insectes. H f flH|^^.^' .nB * nv 1 "1 L ⢠â â ift EXI'LANATION OF THE PLATES. 339 ' 6. Umnobia O. S. ; forct^ps from above, Lalf closed ; tin are coriaceous, movable ; /(/). hooked appendaj^es, consisting of two, closely applied lamels ; the outer one horny ; the inner one appa- rently coriaceous ; e. the anal style ; cc. projecting internal organs ; hb. soft eminences (perhaps rudiments of the large soft lobes of iytcrant»iii)iu). T. Liinuobia jena 0. S.; forceps from above; the lamels M are double. 8. Elepliantoinyia westwoodi 0. S. ; one-half of the forceps; ua, liorny appeii .aues. 9, T«'Ueli«»labi mi'lexa 0. S.; forceps from above; du. one-half of the same, ho . below ; </«, /-/'. horny appendages. 10. AlltoC'lia O. .V. ; forceps fnnn above ; aa. double append- ages. consistiuLr of a horny and of a soft part, closely joined. 11. DicraHloptyt'lia mgku'es 0. S.; forceps from above; i/. short, black bristles ; xx. indistinct horny appiMidages. When this species opened its forceps, a delicate, horny apparatus (figured separately, fig. Ill/) was spread outside of it; bli is a slender forceps, moving independently of aa, and closing at the point c. 12. Dicraiioiityciia sdHKiNA 0. S.; one-half of the forceps. IS. Cryptolatois pauahoxa 0. -S. ,⢠forceps from above. l'6a. the same from below; <i<i. horny ajipendages, small and indis- tinct, being closely applied to the llesliy part of the forceps ; b seems to be the rudiment of an anal style. 13ft. the tip of the abdomen of the female, from the side. 13c. the same fiom above ; both show that there are no visible horny lamels; the prominences ua are beset with microscopic bristles. PL-/''E IV. 14. Erioptera armata 0. .S'. .⢠forceps from abovp. 14«. the same, from the side ; its structure is somewhat compl


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Keywords: ., bookcentury1800, bookdecade1860, booksubjectd, booksubjectinsects