272 Orthorrhapha brachycera. 



Wings browii ; veins blackish, the discai vein slightly bent. Squamulæ 

 and fringe yellow. Balteres yellow, 



Length about 3 mm. 



F. obscuripes is very rare in Denmark, we have only two speci- 

 mens from Stæger's coUection, taken in Ordrup Mose, one on ^^/^ 1844. 



Geographical distribution : — Denmark and Germany. 



Remarks: The above description is made from the type-specimen 

 of Zetterstedt, which he had lent from Stæger, and which, as Zetter- 

 stedt states, has lost the third joint of the antennæ, but I have had 

 besides another Danish speclmen; in all only three specimens seem 

 to be known. There is however good reason to believe that the species 

 is the female to P. suhmidipes Zett. 1859. XIII, 5032, 11-12, as 

 suggested by Raddatz (Stett. ent. Zeitg. XXXIV, 1873, 328, 5). In 

 this case the species goes towards the north to southern Sweden, and 

 towards the south into Styria. 



15. Syntopition Loew. 

 Species of small or medium size, and of metallic green colour, 

 sometimes with yellow spots at the base of abdomen. The genus is 

 in its general organisation similar to Porphyrops, but the species are 

 as a rule smaller, less robust and especially less hairy. The head is 

 not or almost not broader than thorax, it is longer than in Porphyrops, 

 somev^hat semiglobular or quite globular. There are ocellar, outer 

 vertical and smaller postvertical bristles, the latter placed somewhat 

 distantly; the ocellar tubercle has a few hairs on its posterior side. 

 The eyes are hairy; the facets slightly enlarged on the front side 

 in the males. The front decreases a little in breadth towards the 

 antennæ; the eyes are separated, the epistoma narrow in the male, 

 rarely somewhat broad; in the female it is broad. The clypeus is 

 short or somewhat short, it is marked from the epistoma by a small 

 elevation at each side; in the male it is generally slightly arched, but 

 in the female strongly arched and protruding; it may reach to or 

 almost to the lower margin of the eyes in the male, in the female it is 

 a little shorter. The postocular bristles form a single row, the lower 

 part of the occiput is not densely haired as in Porphyrops, but has 

 only a few bristles inwards to the row, and none above the oral 

 aperture. The antennæ are rather long in the male, with the third 

 joint elongated and generally thin in the apical part ; they are short 

 in the female ; the second joint is of a peculiar shape, it has a thumb- 

 like prolongation of the front margin which reaches in on the third 

 joint; the prolongation is, in accordance with the length of the an- 

 tennæ, longer in the male than in the female; in some species the 



