Stratiomyiidae. 43 



broadly yellow on each side. this colour reaching upwards a little 

 above tlie insertion of tlie antennæ; tlie liack of the head has a yellow 

 spot at the vertex on each side. The spots on the abdomen, fornied 

 by the puhescence, generally more distinct than in the male, and 

 whitish grey ; for the rest the puhescence on alidomen chiefly Ijlack. 

 Venter with long, pale puhescence. 



Length 12—14 mm. 



The larva is brown. sometimes with some more or less distinct. 

 longitudinally arranged, darker spots; the last segment is only slightly 

 longer than the penultiniate. There is a somewhat spine-shaped pro- 

 tuberance at the anterior corners of the four first abdominal segments, 

 those on the first being indistinct. When full grown the larva has a 

 length of 45 mm. 



This species is at once recognised by the entirely black abdomen 

 and the densely hairy eyes in both sexes; the coloration of the eyes 

 is also charateristic, but 1 fail to find any generic character, and I 

 therefore cannot foUow the Kat. palåarkt. Dipt. in making it the re- 

 presentative for a separate genus. It may vary in the colour of the 

 puhescence on thorax from yellowish red to grey, but the Danish 

 specimens all have the puhescence yellowish red, only it may be 

 slightly jjaler, thus becoming yellow. 



S. longkornis is not at all common in Denmark, though it has 

 heen found in several localities: vicinity of Copenhagen. Vesterfælled ; 

 Falster; Lolland at Ryde and Maribo (Schlick). It is a somewhat 

 early species, my dates are ^'/is — ■'"/c The larva was found in 

 Vesterfælled in moist loam under stones on the ^^/m, they developed 

 next year on "''/s— ^■'*/r.. The species seems to some degree to 

 perfer salt marshes, the larvæ are recorded from salt ponds (Frieden- 

 fels, Mittli. Siebenb. Ver. f. Naturwissensch. in Hermannst., XXX. 164). 



Geographical distribution: — Europe down to Italy, it has its 

 northern limit in southern Sweden. 



± S. furcata Fabr. 



1794. Fabr. Ent. Syst. IV, 264, o. - 1842. Zett. Dipt. Scand. 1,135,2. 

 — 1862. Schin. F. A. 1, 16. — 1903. Kat. palåarkt. Dipt. II, 20. 



Male. Eyes long haired, the facets in the lower part considerably 

 smaller than above, the dividing line sharp ; the small facets stretching 

 a little upwards at the hind margin; the colour dark greenish, the 

 lower part, a band below the middle and the upper corner at the 

 hind margin, dark bluish. Front and face black, yellow or greyish 

 haired. Antennæ black. Thorax brownish black with dense, yellow 

 to greyish puhescence. Scutellum yellow. broadly black at the base 



