Penium. 69 



or brownish fringe. Balteres with the knob more or less darkened 

 to blackish. 



Feriiale. Frons broad, black or bluish black, white-haired, but 

 with a black-haired cross-band below the ocelli; it has somewhat 

 large side dast spots. Epistoma and eyes white-haired. Antennæ 

 longer than in the male with the third joint longer, but scarcely twice 

 as long as broad, a little pale beneath at base. Thorax with longish, 

 all white hairs. Abdomen densely punctate, with short, white hairs, 

 black at the incisures. Legs with the knees paler than in the male, 

 the hairs all white and almost as long as in the male. The bend of 

 the upper marginal cross-vein generally more angular than in the male. 

 Squamulæ and balteres whitish. 



Length about 7,5 mm. 



This species is easily distinguished from morionelluni by its larger 

 size, longer antennæ, paler pubescence and clearer wings; it is of a 

 size as carhonarium, but this species has much shorter antennæ, dark- 

 haired thorax and abdomen and the latter is all short-haired. — 

 I have not been able to recognize the species as any earlier described; 

 it seems to come near to P. {Heringia) curvmervis Strobl (Mittheil. 

 Ver. Steierm. XXXIV, 1898, 228), but' this species has the head and 

 legs white-haired, and seems to have another course of the upper 

 marginal cross-vein, as well as a shorter and broader abdomen. The 

 species also very much resembles Heringi^ but is in the male known 

 with certainty by the shorter antennæ, the long hairs on the disc of 

 the second abdominal segment and by the not strongly angular upper 

 marginal cross-vein ; the female on the other hånd is so hke the fernale 

 of Heringi that I cannot distinguish thera by any other character than 

 the angular cross-vein in Heringi against the more roundly curved in 

 dubiuni, but I do not quite trust this character. Under these circum- 

 stances the species might have been placed under Pipizella, but I could 

 not resolve myself to do so, as it would somewhat have effaced the 

 characters of this genus. On the other' band I think it will be correct 

 to place Ueringi and curvinervis under Penium, as at all events 

 Heringi shows several characters in common with this genus, such 

 as the long genitalia, the mediastinal vein ending after the medial 

 cross-vein and the distinct frontal side dust spots in the female, but 

 I have omitted to do so here, as I think it well to await the study 

 of more material. The size and shape of the genitalia and the course 

 of the upper marginal cross-vein seem to show, that Penium is more 

 allied to Cnemodon than to Pipizella. 



P. duhium does not seem to be rare, but it has only been taken 

 in the vicinity of Copenhagen; Amager Fælled, Ermelund (the author) 



