. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. 64 Orthorrhapha brachycera. my dates are ^ie to towards the end of June; it seems thus to some degree to be a spring species. It has been taken in plantations of Salix, as also recorded by Zetterstedt. Geographical distribution:— Northern and middle Europe down into France; towards the north it goes no further than to southern Sweden. 15. Rh. dentipes Zett. 1842. Zett. Dipt. Scand. I, 397, 9, et 1849. VIII, 3055, 9. - 1903. Kat. palaarkt. Dipt. II, 224. Male. Eyes contiguous, frontal triangle very small, grey; ep
. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. 64 Orthorrhapha brachycera. my dates are ^ie to towards the end of June; it seems thus to some degree to be a spring species. It has been taken in plantations of Salix, as also recorded by Zetterstedt. Geographical distribution:— Northern and middle Europe down into France; towards the north it goes no further than to southern Sweden. 15. Rh. dentipes Zett. 1842. Zett. Dipt. Scand. I, 397, 9, et 1849. VIII, 3055, 9. - 1903. Kat. palaarkt. Dipt. II, 224. Male. Eyes contiguous, frontal triangle very small, grey; epistoma grey. Occiput grey with black hairs. Labrum as long as or a little longer than the head is high; palpi dark, brownish haired. Antennae about as long as the head, black, the two basal joints slightly short- haired, the third joint elongated, slightly attenuated towards the apex. Thorax grey, almost bluish grey, practically without stripes, only the two interstices between the bristles a little darker. The dorsocentral bristles longish, a little longer behind, uniserial, the acrostichal bristles short, biserial, all black. Further a humeral bristle, a posthumeral, about three notopleural, two supraalar and a postalar bristle, all black; besides there are a pair of bristles in front, inwards to the humeri, and also some smaller bristles are present. Scutellum with four black marginal bristles. Pleura grey, metapleura with black or brownish hairs. Abdomen light grey, with black or brownish, somewhat erect, longish hairs. Venter of the same colour, somewhat sparingly haired. Exterior genitalia of a curious shape, the upper lamellae large, somewhat triangular or pointed oval and some- what spoon-shaped, they are finely grey prulnose, in certain directions Fig. 20. Rh. dentipes. male genitalia. shining almost whitish; the lower lamellae are broad at the base, tapering into a long and thin, ferruginous apex, in the middle of the upper margin there is a triangular tooth; they a
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Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera
