Diptera danica : genera and species of flies hitherto found in Denmark . Pleura yellow or more or lessdark. Abdomen yellow with a middle stripe, which is sometimesrather narrow; the stripe may then widen more and more, until ab-domen is quite dark grey; abdomen is thus never dark in front, yel-low behind as in varieties of lutea. Legs yellow, tarsi darkened to-wards the end; front tarsi most darkened, but the tibiæ not dark onthe apical part as in lutea; the chætotaxy of the legs is somewhatdiffering from that in lutea; the coxæ have similar bristles; the frontfemora have likewise three bristl
Diptera danica : genera and species of flies hitherto found in Denmark . Pleura yellow or more or lessdark. Abdomen yellow with a middle stripe, which is sometimesrather narrow; the stripe may then widen more and more, until ab-domen is quite dark grey; abdomen is thus never dark in front, yel-low behind as in varieties of lutea. Legs yellow, tarsi darkened to-wards the end; front tarsi most darkened, but the tibiæ not dark onthe apical part as in lutea; the chætotaxy of the legs is somewhatdiffering from that in lutea; the coxæ have similar bristles; the frontfemora have likewise three bristles above on the apical part, middlefemora one on the antorior side in the middle, and hind femora twoon the antero-dorsal side, besides the bristles around the apex; thefront tibiæ have two dorsal bristles and one posterior above themiddle, middle tibiæ two antero-dorsal, one postero-dorsal above themiddle and one ventral near the apex; hind tibiæ have as in luteaabout four more or less dorsal and a couple of small ventral bristles ^ t 1:1 JMc^-,. Fig. 4. Wing of L. furcata 9- on the apical part; besides the tibiæ have apical or subapical bristles;hind metatarsus has two ventral bristles at the base and one at theapex; the bristles on tibiæ are smaller than in lutea. Wings slightlyyellowish; anal vein terminating behind the base of the discai fork;the upper branch of the discai fork spinulous to near the yellow. According to de Meijere the male is similar; abdomen has thelast segment twice as long as the preceding; the hypopygium is small,the apical lamellæ considerably longer than broad, with bristles atthe margin, also at the inner margin; the posterior inner lamellæ(gonapophyses) are large, reaching to the end of the apical lamellæ,somewhat lobe-shaped; the anterior are short lobes. Length 2,3—2,5 mm. J6 Orthorrhapha brachycera. As seen tliis species is similar to the preceding and varies in thesame way; it is however known without d
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishercopenhagengecgad
