Diptera danica : genera and species of flies hitherto found in Denmark . m has as usual at the end two claspingappendages or claws, which are here large, some-what bifurcate with an upper branch stretchingbackwards and a lower branch curved down-wards (when the hypopygium is stretched outbackwards); the upper branch has in mostspecies long, tufted hairs. In the female theabdomen has as a rule seven visible segments,generally also a small eighth is seen. Legssomewhat slender, simple; hind tibiæ with theusual slight incurvation towards apex on theposterior side; the legs are short-haired, alsoth
Diptera danica : genera and species of flies hitherto found in Denmark . m has as usual at the end two claspingappendages or claws, which are here large, some-what bifurcate with an upper branch stretchingbackwards and a lower branch curved down-wards (when the hypopygium is stretched outbackwards); the upper branch has in mostspecies long, tufted hairs. In the female theabdomen has as a rule seven visible segments,generally also a small eighth is seen. Legssomewhat slender, simple; hind tibiæ with theusual slight incurvation towards apex on theposterior side; the legs are short-haired, alsothe hairs on posterior side of the anteriorfemora and on front side of the hind femorarather short; the hind femora have a narrow,bare stripe below, at all events at the apex, Fig. 129. S. scripta ^. g^^^ ^^ ^^^ species {scripta) the hairs on both Apical part of abdomen ^.^^^ ^^ ^^^ ^^^ ^^.^^^ ^^^ ^^^^^^^^ -^ With genitalia seen from ^ ,;. n j i j below; 3—8 third to ^he male. Claws and pulvilh well developed;eighth segment. empodium short, thread-like with a broader. 340 Syrphidae. base, haired. Wings a little narrow; medial cross-vein well beforethe middle of the discai cell; vena spuiia distinct, with a nodulebelow the base of the cubital vein. Alula large. Squamulæ sonie-what narrow, alar squamula with quite short, simple hairs, thoracaisquamula with not long, fine, branched hairs. Plumula very thinand delicate, not densely haired, the hairs simple. This genus is well characterised by its long and narrow shapeand by the structure of abdomen, which in the male has the fifthsegment long with the hind margin not symmetricai, and in the femaleat least seven visible segments; also the male genitalia are verycharacteristic. Verrall gives as character that the abdomen in bothsexes has an unusual large number of segments and says that thereare flve in the male; but as seen this is not unusual, as most generashow this number of not transformed segments, only the fifth segmentis he
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishercopenhagengecgad
