64 Oithorihaplia brachycera. 



spots above the antennæ widely scparated, tlie hinder eye-niargin on 

 eacli side of the vertex broad. Thorax with siiort, white pubescence. 

 Abdoiiien copper-coloured at the base, violet tovvards tlie apex, or 

 quite violet. Legs quite yellow with the taisi darkened towards the 

 ends and also the front l'eniora sligthiy darkened in the niiddle. 



Lenght G.o — 10 mm. 



The larva is brownish white, of a length of 8 — 9 ram. 



The species is very characteristic and easily distinguished by its 

 pale legs and the broad front with the white spots widely separated. 

 as also by the ocelli of which the anterior is placed nearer to the 

 hinder pair than in the other species of Sargus. This is the species of 

 Sargus which is most nearly related to ChrysochrotnaWiWist. {Chrysonotus 

 Low). Meigen says nothing about the coloration of the eyes, but 

 Zetterstedt and later authors say that the eyes have no band ; this is. 

 however. not correct, as the male has unicolorous eyes but in the 

 female there is a band lying far above nearly as in iridatus. 



S. flavipes is a sotnevvhat rare species in Denmark; vicinity of 

 Copenhagen, Lersø, Hillerød. Nykøbing, and on Lolland at Maribo. 

 My dates are only ^-/s — ^h, it seems therefore to be a species that 

 occurs somewhat late. Zetterstedt records it from '- t — '•:>. Aspecimen 

 of the larva was taken in Utterslev Mose in the eartli on -- r. 



Geographical distribution: — Northern and middle Europe from 

 the northern Swedén to France. 



8. Chlopomyia Dune. 



Species of niiddle size and of metallic colour, much resembling 

 Sargu8, but more robust. Head nearly semiglobular, excavated behind. 

 broader than higli and a little broader than the thorax. Antennæ 

 inserted in the middle of the head; face somewhat bulbous, yowls 

 not descending below the eyes, horizontal, not narrow as in Sargus 

 but distinct and rather broad. Antennæ seven-jointed, the first basal 

 joint slightly longer than the second, the four foUowing short, forming 

 a compressed, annulated part. the last forming an unjointed, or, at 

 all events, verj' indistinctly jointed arista with some long bristles at 

 the somewhat thickened base, inserted in the dorsal side of the fore- 

 going joint. Eyes long and densely hairy, touching in the male. 

 broadly separated in the female; in the male the upper facets distinctly 

 larger than the lower. The three ocelli equidistant from each other. 

 The oral cone short; clypeus elongate, rectangular, stretching from 

 the epistoma to the labrum, its anterior end is roundly excised; the 

 proboscis is short, lalirum short and semitubular; hypopharynx short. 



