Weberia. 117 



quite bare; the apical segment claw-shaped, cleft in apical part. 

 Hind trochanters with some small spinules below. Wings gener- 

 ally somewhat brownisli tinged. Thoracic squamula more or less 

 blackish. 



Length 4 — 4,5 mm. 



W. curvicauda is not just rare in Denmark; Lundtofte, Dyre- 

 haven, Lyngby, Hareskov, Tisvilde (Kryger, the author); the dates 

 are ^"/g — "^Z?. It occurs in low herbage near the ground and also 

 on various flowers of composites and umbelhfers. It is known as 

 bred from Ophonus ruficornis and Amara aulica. — Zetterstedt men- 

 tions a Danish specimen of his Tachina junesta^ but it is not pre- 

 sent in our collection now; he had only the single specimen, a female, 

 and I think it probable that it was the present species. 



Geographical distribution: — Northern and middle Europe 

 into Austria; towards the north to middle Sweden; farther south 

 it is not known with certainty as it is not identical with curvicauda 

 Meig. Schin. Pand. 



2. W. thoracica Meig. 



1824. Meig. Syst. Beschr. IV, 220, 4 {Phania) et 1838. VII, 202, 1 {Uro- 

 myia). ^ 1844. Zett. Dipt. Scand. III, 1217, 1 {Phania). — 1862. Schin. F. A. I, 

 422 (Uromyia). — 189L B. B. Denkschr. Akad. Wiss. Wien, LVIII, 387 {Cerco- 

 myia). — 1907. Kat. palåarkt. Dipt. III, 564 (excl. syn. incrassata Pand.). — • 

 1924. Stein, Arch. f . Naturgesch. 90, 6, 243, 4. 



Of this species I know only the female. Frons about as broad 

 as the eye, slightly protruding; jowis quite narrow. Orbits grey 

 above, downwards together with cheeks and jowls whitish to greyish 

 silvery. Frontal stripe velvet black, slightly brownish. Frontal bristles 

 reaching to lunula, above an outward directed bristle. Jowls almost 

 bare. Occiput grey with black hairs. Antennæ blackish, a little paler 

 at base, third joint more than twice as long as second; arista very 

 short-pubescent. Palpi blackish. Thorax blackish, grey pruinose, 

 with an indication of tliree broad darker stripes; it is black-haired. 

 Three sternopleural bristles. Abdomen black, shining, black-haired, 

 with a pair of marginal bristles on second and third and a row on 

 fourth segment. Ovipositor as in curvicauda, but shorter and not 

 curved, the ventral apical process furcate at apex; it is hairy, the 

 hairs short but strong on ventral side. Legs black; hind trochanters 

 with small spinules below. Wings somewhat brownish; first posterior 



