118 Tachinidae. 



cell open, ending at apex of wing, apical cross-vein more steep than 

 in curvicauda. Squamiilæ whitish. Halteres brown. 



Length nearly 6 mm. 



W. thoracica is very rare in Denmark, only one specimen, a female, 

 is in our collection, taken at Næstved on '/s 1838. Zetterstedt 1. c. 

 mentions a Danish specimen from near Copenhagen. 



Geographical distribution: — Europe, towards the north to 

 middle Sweden, Lappland and Finland. 



Remarks: Stein states that this species has no ventral bristle 

 on middle tibiæ, my sole female shows, however, this bristle. 



12. Freraea R. D. 



{Gymnopeza Zett.) 



Small black species. Head fully as broad as thorax, almost 

 flat behind, but a little puffed out below, nearly as long as high. 

 Frons in male quite narrow with nearly touching eyes, in female 

 broad, almost not protruding, most in female. Jowls quite narrow. 

 Ocellar bristles indistinct or wanting, small inner and outer verticals 

 present. Behind postocular bristles black hairs. Frontal bristles 

 only present in male, fine, reaching to lunula, stopping above con- 

 siderably before vertex. No orbital bristles. Cheeks with a row of 

 hairs, or in female quite hairy. Vibrissæ not ascending and the 

 angular vibrissa small. Oral bristles dense, short and hair-like, in 

 female quite short and specially dense. Epistoma a little hollowed. 

 Oral cone and proboscis short; clypeus a delicate, horse-shoe-shaped 

 bow. Palpi small, thread-like. Antennæ inserted at about the middle 

 of the eye, short; arista thickened just at base, bare, second joint 

 short. Thorax nearly quadratic; of bristles on disc only a posterior 

 dorsocentral one on each side. Scutellum with two marginal bristles 

 on each side. Sternopleura with one bristle and many bristly hairs. 

 Pteropleura above with a single bristle or a couple. Abdomen 

 elongated oval, without bristles; excavation on second segment 

 only present at base. Male genitalia relatively large, lying below 

 apex of abdomen; fifth sternite broadly cleft to the base. In female 

 fifth abdominal segment long, cylindrical, bent in under venter, 

 followed by some telescopically retractile segments and ending with 

 a slender, curved claw-like process. Legs of medium length, almost 

 without bristles, only in male front femora with dorsal and ventral 

 fine bristles, and some few on posterior femora ventrally on basal 



