Stratiomyiidae. 59 



a basal and an apical spot, the latter sometimes divided in two 

 (\ar. jejuna. interrupia, subvUtafa and biniaciilata), originally considered 

 as distinct species, have not been found in our country. Girschner. 

 (Berl. Ent. Zeitschr. XXXI, 1887, 160) says that the purplish spots on 

 the eyes are only found in the male; this is not correct, however, as 

 I have ahvays found theni in botli sexes, but as they are quite 

 irregularly spread they niay perhaps sometimes be quite wanting, but 

 I never found it so. It is also possible that the absence of the spots 

 is only found in one or more of the above named varieties; if this 

 should prove to be the case, this would go to prove it to be a 

 separate species. 



H. viridula is a common species and often occurs in great nunibers, 

 especially on ruhes and reeds at the border of water, f. inst. I have 

 taken it in fens on Phragmites; vicinity of Copenhagen. Utterslev Mose. 

 Ordrup Mose , Fuglsangsø, Bøllemosen, Furesø, Hillerød ; Lolland at 

 Maribo; Funen at Odense and Vellinge; Jutland in Greisdalen near 

 Vejle. Hansted near Horsens, at Silkeborg and on Læsø; flnally on 

 Bornholm at Hasle and Allinge. It occurs in a ratlier long period 

 of the summer, my dates are '/:> — "/s. The larvæ have been taken in 

 water in Utterslev Mose on '-/é, they were of different sizes, some 

 very small; larvæ and pupæ were taken in water in Furesø on ^^/.^ 

 and '*'i;, at this time cast pupa-skins were taken; the larvæ trans- 

 formed to pupæ, and the imagines escaped to the '"la; on the '"/t I 

 still saw larvæ in Furesø; thus the development takes place during a 

 long period of tiie summer, but I do not tliink there is more thaii 

 one generation. 



Geographical distribution: — Europe and Asia minor, tovvards 

 north to Jemteland in the northern part of middle Sweden. 



7. Sapgus Fabr. 



Species of middle size and of somewhat elongate and slender 

 form, metallic coloured. Head semiglobular but rather long, excavated 

 behind, somewhat broader than the thorax. Antennæ inserted on the 

 lower surface of the head, below the middle; epistoma short and 

 retreating; there are no distinct yowls. only a very narrow margin 

 between the eyes and the oral aperture. Antennæ sliort, seven-jointed 

 in all, the two basal joints short, the others forming an annulated, com- 

 pressed part bearing a dorsal, one-jointed arista. Eyes l)are, separated 

 in both sexes; the front narrow in the male, broader in the female; 

 the eye-facets of the same or almost the same size. The anterior 

 ocellus distant from the two posterior. The oral cone and the linear 



