J18 Syrphidae. 



than in the male. Wings a little less blackish; upper cross-vein more 

 steep than in the male, the lower angle more pronounced. Squamulæ 

 whitish with a whitish fringe. 



Length 6,8 — 8,4 mm. 



Not rarely specimens occur, especially females, which are more 

 or less brown on abdomen, often with a dark middle stripe, and also 

 with the venter brown; they are I think not fully mature, and they 

 have generally also less darkened wings. 



Remarks: Loew thinks (Stett. ent. Zeitg. IV, 1843, 279) that Zetter- 

 stedt has partly mixed solstitialis with specimens of chalyheata^ especially 

 because he speaks of a yellowish wing-base; this may be possible but is of 

 slight consequence, and I think it not advisable to cite solstitialis Zett. 

 under chalyheata, at all events not before certainty is obtained. In 

 1854 Loew mentions (Neue Beitr. II, 18) under C. inornata, that he 

 had got a female of this species together with a male of chalyheata 

 from Zetterstedt, both determined as solstitialis. Zetterstedt (1. c. XIII) 

 will not admit this and says he had found no other species under his 

 chalijbeata and solstitialis. Loew's description of inornata is very 

 short, only the female is known, and the species has not been men- 

 tioned since; I think that if inornata is at all a good species, it does 

 not occur in Sweden nor in Denmark. — In keeping the name solsti- 

 tialis I follow Zetterstedt and Verrall as I think, Linné's coemeteriorum 

 is another species. In the Kat. palåarkt. Dipt. besides coemeteriorum L. 

 also coemeteriorum Fabr. is given with a querry, but according to 

 specimens in the collection of Tønder Lund and Sehestedt, Fabricius's 

 species is solstitialis Fall. and can thus be given in the synonymi with 

 certainty. 



C. solstitialis is common in Denmark ; Ordrup Mose, Ermelund, 

 Dyrehaven, Lyngby Mose, Ørholm, Hillerød, Grib Skov; on Lolland in 

 Kældskov, Dødemose, and at Nysted; on Langeland at Lohals; on 

 Funen at Odense and Middelfart; in Jutland in Højenbæk Dal at 

 Vejle, at Horsens, Laven near Silkeborg, Hald near Viborg, Rebbild 

 at Skørping, Sæby and Frederikshavn, and on Bornholm at Hammeren, 

 Almindingen and Rønne. It is seen during the whole summer, my 

 dates are ^'h—^h. It occurs in low herbage and on flowers, often 

 Ranunculus, in fens, humid meadows and at horders of ditches. 



Geographical distribution: — Europe down into Spain and Italy; 

 towards the north to middle Sweden, and in Finland. 



4. C. chalybeata Meig. 



1822. Meig. Syst. Beschr. III, 267, 4. — 1843. Loew, Stett. ent. 

 Zeitg. IV, 24L — 1843. Zett. Dipt. Scand. II, 819, 3 et 1849. VIII, 3177,3 



