Stratiomyiidae. 35 



band oii the dividing line. Frontal triangle and clieeks yellow, epistoma 

 and yowls black. Antennæ reddish, the basal joints blackish. The 

 lunder eye-margin with a yellow stripe on each side. Thorax black, 

 humeral callus yellow. from this a yellow, somewhat crescent-shaped 

 spot stretching up on the disc and going to the transverse furrow; it 

 is very narrow in the niiddle and here sometimes interrupted ; on the 

 side of the thorax there is, in the middle, a yellow, oblique stripe, 

 going down on the mesopleura just anterior to the wing-root; the 

 postalar callus yellow. Scutellum yellow, the spines slightly darkened 

 lowards the tips; postscutellum black. Thorax with yellowish to brown 

 pubescence, on the pleura and sterna with white pubescence. Abdomen 

 l)lack, on the second segment a triangular yellow spot on each side 

 at the margin, on the third segment a somewhat club-chaped spot on 

 each side, stretching obliquely forwards from the side margin some- 

 what inward on the segment, nearly reaching the front margin, on 

 the fourth segment similar, but somewhat curved spots and on the 

 tifth segment a triangular spot at the hind margin. Venter black, 

 with a yellow, subquadratic spot on the middle of the second segment. 

 Femora black, the apical third yellow ; tibiæ and the posterior tarsi 

 yellow, the latter brownish towards the ends; the front tarsi some- 

 what compressed, brownish black, brownish haired, the apex of the 

 apical joint lighter. Wings somewhat yellowish with the anterior veins 

 brownish. Halteres yellow, the peduncle slightly darkened. 



Female. Eyes sparingly and short haired, with a reddish band in 

 the middle. Front yellow with a black middle stripe, vertex black; 

 cheeks yellow; epistoma and yowls black. Hinder eye-margin all 

 yellow to the vertex, only with a black stripe at the eye-margin from 

 the vertex for a short distance towards the sides, sometimes at the end 

 connected with the black colour on the back of the head, and thus 

 enclosing a yellow spot on each side of the vertex. On the .sides of 

 thorax, below the oblique spot. there is a little yellow spot. V^enter 

 generally with a pale spot also on the third segment. 



Lengtli 7 — '.) mm. 



O. Meigenii is very rare here, only thirten specimens have been 

 taken in all: Ordrup Mose (Jacobsen, Stæger), near Roskilde (Lieben- 

 berg), at Sorø (Schlick). northern Sealand (Schlick, Meinert); on 

 Falster and on Lolland at Maribo (Schlick); fmally on Funen at Odense 

 (H.J.Hansen). It has thus only been taken in the southern parts of 

 our country. My dates are from ''7 to August. 



Geographical distribution: — The species occurs from Denmark 

 down to northern France, but it seems not to occur farther north 

 Ihan southern Denmark. In Austria it is connnon. 



■y 



