Diptera danica : genera and species of flies hitherto found in Denmark . Frons æneous or often bluish black, fmely punctate,with a groove above the antennæ, and with a slight transverse depres-sion, bordered above by a line with a triangular outskot in the middle;it is whitish-haired, above the antennæ and just in front of the ocellisome dark hairs; distinct side dust spots present. Occiput puffed outand shining above, the white postocular hairs more conspicuous thanin the male; at the sides upwards some black hairs. Antennæ longerthan in the male, the third joint twice as long as broad. Thora
Diptera danica : genera and species of flies hitherto found in Denmark . Frons æneous or often bluish black, fmely punctate,with a groove above the antennæ, and with a slight transverse depres-sion, bordered above by a line with a triangular outskot in the middle;it is whitish-haired, above the antennæ and just in front of the ocellisome dark hairs; distinct side dust spots present. Occiput puffed outand shining above, the white postocular hairs more conspicuous thanin the male; at the sides upwards some black hairs. Antennæ longerthan in the male, the third joint twice as long as broad. Thoraxwith shorter and whiter hairs. Abdomen sometimes quite white-haired, 54 Syrphidae. but generally black-haired at the incisures. Legs a little shorter-hairedthan in the male, and femora and tibiæ all white-haired. Wings alittle more tinged, sometimes especially about the middle. Squamulæpaler, whitish. Length 5,5—6,5 mm. Verralls description, at all events of the male, is not quite agreeingwith my specimen; it seems to differ by the almost quite black-haired. Fig. 16. Antenna of P. Heringi 9, from the inside. X 80.(From a German specimen). epistoma, the more long-haired abdomen and somewhat fringed anteriortibiæ; also the figure of the antennæ shows a rather short third joint,though in the text it is said to be about one and a half timeslonger than deep. One might almost be inclined to suggest, that it ismy Fenium duhiiim (se below) which Verrall has had before him. P. Heringi seems to be rare in Denmark, I only know threespecimens; Copenhagen in a garden (the author), and two specimensfrom earlier time; the only date is ^^/e. The specimens are all females,but according to Zetterstedt Stæger had sent him a male [geniculata];it may however be noted that Zetterstedt may well have mixed thespecies with Penimn duhium described below. Geographical distribution:— All Europe; towards the north tosouthern Sweden; further it is recorded from the Ganarian Islands. 4. Penium
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishercopenhagengecgad
