Weberia. 115 



above middle of the eye; third joint nearly to fully twice as long as 

 second; arista thickened at base, very short-pubescent, second joint 

 a little or almost not elongated. Thorax nearly quadratic; three 

 postsutural dorsocentrals and a præscutellar pair of acrostichals. 

 Scutellum with three marginal bristles on each side, the apical crossing. 

 One to three sternopleural bristles. Pteropleiira with a single small 

 bristle above. Abdomen elongated oval; excavation on second segment 

 only present at base ; in male a not small apically placed sixth seg- 

 ment present. Only marginal bristles present, on second segment a 

 pair. Male genitalia forming a knob, bent in under venter. In female 

 sixth segment long, cylindrical, bent in under venter, with an apical 

 ventral process; the apical segment forming two claws. Legs moder- 

 ately long and with moderate bristles, middle tibiæ in both sexes 

 with a not strong ventral bristle; claws and pulvilli in male only 

 a little elongated. Wings with first posterior cell more or less narrowly 

 open or just closed, ending at apex of wing; angle on discai vein 

 obtuse and rounded. No costal spine, and no bristles at base of 

 cubital vein. 



The species curvicauda is known to be parasitic on imagines 

 of Carabids, Ophonus and Amara and form the group 8 by Pantel; 

 it is, how^ever, probable that Freraea, Besseria and Phania also belong 

 here. 



Of the genus 6 European species are recorded, 2 occurring in 

 Denmark. 



Table of Species. 



1. Frons in male quite narrow, no vertical bristles; thorax in 

 male black, dull, slightly pruinose, in female shining; one 

 sternopleural bristle ; species 4 — 4,5 mm 1 . curvicauda. 



— Frons in male somewhat broad, vertical bristles present; 

 thorax distinctly pruinose in both sexes; three sterno- 

 pleural bristles; species about 6 mm 2. thoracica. 



1. W. curvicauda Fall. 



1820. Fall. Dipt. Suec. Muse. 17, 33 {Tachina). — 1844. Zett. Dipt. Scand. 

 III, 1217, 2 et 1859. XIII, 6157, 2 {Phania). — 1924. Stein, Arch. f. Natur- 

 gesch. 90, 6, 242, 1. ^ Tachina funesta, 1844. Zett. 1. c. III, 1175, 178 et 1859. 

 XIII, 6136, 178. — Cercomyia Zetterstedtii Villen. 1908. Feuille des jeun. Nat. 

 4, 38, 37. 



Male. Frons quite narrow above, almost not protruding; jowds 

 quite narrow. Orbits black above on the narrow part, downwards 



8* 



