Frauenfeldia. 259 



47. Frauenfeldia Egg. 



Small species of blackish colour with greyish pruinosity, in habitus 

 reminding somewhat of Sarcophagids. Head slightly broader than 

 thorax, convex behind and a little puffed out below, about square 

 in profde. Frons broad in both sexes and only slightly broader in 

 female than in male, slightly protruding. Jowls not broad, about 

 one fourth of the height of the eye. In both sexes ocellar, inner and 

 outer vertical and one or two orbital bristles. Postocellar and occi- 

 pital bristles well developed. Behind postocular bristles black hairs. 

 Frontal bristles reaching a little below insertion of antennæ, above an 

 outwards directed bristle in both sexes. Cheeks hairy and with a 

 row of bristles below. Vibrissal ridges curved somewhat inwards 

 just below, vibrissæ slightly ascending. Eyes bare. Epistoma slightly 

 retreating, reflected and protruding below. Oral cone and proboscis 

 of medium length; clypeus forceps-shaped. Palpi thread-like, a little 

 dilated apically. Antennæ inserted below middle of the eye, third 

 joint a little longer than second; arista short-hairy, second joint 

 distinct. Thorax rectangular; three postsutural dorsocentrals, one 

 or two pairs of præsutural and a pair of præscutellar acrostichals ; 

 two intraalar bristles. Scutellum with two marginal bristles on each 

 side. Three sternopleural bristles. Pteropleura with a few more or 

 less bristly hairs above. Abdomen conical, a little compressed just at 

 apex, in female more flattened; excavation on second segment not 

 reaching hind margin; only marginal bristles, on second segment 

 none. Genitalia somewhat large. Legs not long, a little robust, front 

 femora a little thickened; claws and pulvilli in male slightly elongated. 

 Wings with first posterior cell closed at margin, ending a little before 

 apex of wing; discai angle obtuse; a costal spine present. 



F. ruhricosa is known as parasitic on Oniscus asellus. 



Two European species are described, the one occurring in Den- 

 mark. 



1. F. rubricosa Meig. 



1824. Meig. Syst. Beschr. IV, 305, 113 {Tachina) et 1838. VII, 210, 10 

 {Rhinophora). — 1862. Schin. F. A. I, 548 (Phyto). — 1865. Egg. Verhandl. 

 zool. bot. Gesell. Wien, XV, 297. — 1889. B. B. Denkschr. Akad. Wiss. Wien, 

 LVI, 121, Tab. VII, Fig. 172 et 1893. LX, 223. — 1907. Kat. palåarkt. Dipt. 

 III, 459. — Tachina harhata Meig. 1830 1. c. VI, 371, 322 et 1838. VII, 210, 12 

 [RhinopJiora). — 1900. Stein, Ent. Nachricht. XXVI, 132. — Tachina trilineata 

 Meig. 1824. 1. c. IV, 281, 72 et 1838. VII, 207, 8 (Cistogaster). — 1900. Stein, 

 i. c. XXVI, 150 et 1924. Arch. f. Naturgesch. 90, 6, 184. — Tachina hirti- 



17* 



