. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. 322 DIPTEUA OF NORTH AMEUICA. [part tin<j:iiish on account of their dose resemblance; in l)0tli, the same frecjiK'nco of si)ecie,s of Chri/soliis, and not only the same variety of plastic Pi)eciric charaeterri anH»n<; ihem, but even a most strik- in distinctly perceive that the North American fauna closely approacln's the Kuropean and the North Asiatic fauna} in the si)ecies of the genera Ifi/grorcleidhun, DoIicJinjiKu, T(i<-h;/lir- rhiix, , Scdlns, Jli/draphorux, Ltanral
. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. 322 DIPTEUA OF NORTH AMEUICA. [part tin<j:iiish on account of their dose resemblance; in l)0tli, the same frecjiK'nco of si)ecie,s of Chri/soliis, and not only the same variety of plastic Pi)eciric charaeterri anH»n<; ihem, but even a most strik- in distinctly perceive that the North American fauna closely approacln's the Kuropean and the North Asiatic fauna} in the si)ecies of the genera Ifi/grorcleidhun, DoIicJinjiKu, T(i<-h;/lir- rhiix, , Scdlns, Jli/draphorux, Ltanraluft, CIii'i/sdH- 7/)«.s, 1 id Xut scantily represented in Europe. The North American species of DiapJio- riiK agree in i)art with the Euroi>can, in part with the South American species. The North American species of Argi/ra, {'or- pJii/roiis, Leucoxtido, and Lioncalus do not show any striking dillerence from the European species of these genera, but juft as little from the South American species. Of such species, as are connnon to Europe and North America, the following have hitherto conu; uiuler my observation : ])nli- <'hnpiis brcripr)))i/.-i Meig., D()licJiO])iif< jdioiiipefi Scop., DoJiclu)- puH (liscifcr Stann., ^Sc(7/»x xjjiiiiinamis Zett., and I'Kilojnm pnllcns "\Vicd. The first four of these species belong altogetlicr to specifu' types commonly represented on Itoth continents; but this is not the case with PsilopiiK ;)f///c».s. This species un(|Ut's- tionably Ix'longs to the circle of European ty})es of Psi!i);, whereas all the North American l\-<iIopu!< at i)rescnt known closely approach tin; types of their South American brethren. It seems, therefore, not altogether unnatural to suppose that thin. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Loew, H. (Hermann), 180
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectinsects, bookyear1864
