. y/- Fig. 53. Antenna of fi. ceUr c5", from the inside. X 80. haired with dark hairs, brownish at the margin. Pleura greenish, grey pruinose ; propleui'a with a few pale hairs and a black prothoracic bristle. Abdomen dark green or somewhat æneous, very slightly pruinose downvvards; it is clothed with short, black hairs, and has hindmarginal bristles, which are longer on the first segment. Venter greenish, grey pruinose, with yellow or brownish hairs, somewhat long at the base. The hypopygium is constructed quite as in the preceding species; the outer lamellæ are small, broader than long,
. y/- Fig. 53. Antenna of fi. ceUr c5", from the inside. X 80. haired with dark hairs, brownish at the margin. Pleura greenish, grey pruinose ; propleui'a with a few pale hairs and a black prothoracic bristle. Abdomen dark green or somewhat æneous, very slightly pruinose downvvards; it is clothed with short, black hairs, and has hindmarginal bristles, which are longer on the first segment. Venter greenish, grey pruinose, with yellow or brownish hairs, somewhat long at the base. The hypopygium is constructed quite as in the preceding species; the outer lamellæ are small, broader than long, of yellow colour and with somewhat short hairs at the margin. Legs yellow, coxæ grey with the apex yellow; the tarsi with the apex of metatarsus and the four following joints black; hind metatarsus con- siderably shorter than the second joint. The legs have short, black hairs; posterior femora with one preapical bristle; front tibiæ with a few bristles above, but none below; middle tibiæ with two rows of bristles above and one ventral bristle; hind tibiæ likewise with two rows of dorsal bristles, and some smaller ventral bristles. Wings a little tinged; veins black, costa thickened on a streak between the base and the apex of the sQbcostal vein, and also somewhat thick from the apex of the subcostal vein and outwards; discai vein with a very slight bend and parallel with the cubital vein; axillary lobe small. Squamulæ yellow, with a black fringe. Halteres yellow. Female. Epistoma broader than in the male, grey. Antennæ shorter. Wings more tinged, with the thickness at the base of costa present, but thinner than in the male. Length 3,3—3,8 mm. R. celer is common in Denmark; Lersø, Charlottenlund, Ordrup Mose, Ermelund, Hillerød, Frederikssund, Faxe Ladeplads, and on
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Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishercopenhagengecgad
