. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. ilili. i ti'. no mPTERA OP NORTH AMKRICA. [part tr. tiiictly Imlry. IIy|i()|)yj,'imii t'litiroly (lis('ii,u-a}r('(l, on ii sli(trt |>t'- (luiiclo; its oxtorior ajipoiKlajiCS hiiiicllirurm. 'I'lic lirst joint ul' tilt' iiiiid tursi without bristles I''irst posterior ct'll narrow, towards its end very narrow; nevertiu'less tin' last sejrnient oltlic fonrtli Ion};itudinul vein only very gradually a]»i»roachos llio third ion^ituilinal vein. The next related ji:oncra arc//c/ros^^m((x and Ilii/>ojih
. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. ilili. i ti'. no mPTERA OP NORTH AMKRICA. [part tr. tiiictly Imlry. IIy|i()|)yj,'imii t'litiroly (lis('ii,u-a}r('(l, on ii sli(trt |>t'- (luiiclo; its oxtorior ajipoiKlajiCS hiiiicllirurm. 'I'lic lirst joint ul' tilt' iiiiid tursi without bristles I''irst posterior ct'll narrow, towards its end very narrow; nevertiu'less tin' last sejrnient oltlic fonrtli Ion};itudinul vein only very gradually a]»i»roachos llio third ion^ituilinal vein. The next related ji:oncra arc//c/ros^^m((x and Ilii/>ojihi/lli(ti ,- their speeies were fornutrly located with Si/in,'>ti'oina. Frtnu lioih these p'uera Sijhifttroind, dilVers, besides the peenliar structure of the antennit' of the nuile, by the very distinct hairs on the scutel- luni. 'Ihis (renus was hitherto c(»nfincd to the Fuirojiean Si/hiaf/'dnia luxh'roj'iu'x, uidess perhaps Si/hidroma JiiiJ'oiirii belouffs to it. Tiie derivation of the name of this genus is not clear t<t me. That it should be derived from ai-iivv.,, the spear, and arp^jfia, the couch, is not |)robable, ut least it would then be a very unsuccess- ful composition. Gen. IX. IIEUCOSTOIViriii. I have established the genus Jfcrcoxtomui^ in the fifth numlter of the " Neue Jieitrdye,^^ upon the species Sifliis/ronia cirdfcr lln\., fuli'icaudis Walk., and loiifji cent via Loew. Th.'se species agree in the following characters : in the distinct j)uI)esceMce of the otherwise i)Iain arista; in the structure of the ju'oboscis ; in the distinct hairs upon the surface of the suctorial fl!ij)s; in the glaln-ousness of the scutellum, and in the apparently sessile hy- popygium of the male. The last of them approaches the species of llijpophijUus very much, and shows some marki'd dill'ercnccs from the two first, so that their consolidation into one genus may 1»e considered as provisional, and will certainly have to be modified when a more considerable number of
Size: 845px × 2958px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1860, booksubjectinsects, bookyear1864
