488 Tachinidae. 



narrower than thorax, convex behind and here piiffed out below; 

 it is higher than long or almost as long as high. Frons in male narrow 

 or broader, in female broader than in male, more or less to strongly 

 protruding. Jowls about half as broad as the height of the eye or 

 broader. In both sexes ocellar and inner vertical bristles or (in Pan- 

 zeria) no bristles at all but only hairs; in female also outer vertical 

 and two orbital bristles ; (in male of nemorum also weak outer vertical 

 bristles). Small postocellar and occipital bristles, except in male of 

 Panzeria. Behind postocular bristles rows of black hairs. Frontal 

 bristles descending to or more or lesg below insertion of antennæ; 

 all Crossing in male, in female an upper outwards directed bristle. 

 Cheeks bare. Vibrissæ not ascending, only a few hairs above the large 

 vibrissa. Eyes hairy. Epistoma hollowed and more or less, but always 

 distinctly, reflected and prominent below. Oral bristles well developed. 

 Oral cone and proboscis medium long, of about equal length; clypeus 

 forceps-like. Labium with a well chitinized basal part, labella oval. 

 Labrum as long as basal part of labium, hypopharynx a little shorter. 

 Palpi rod-like. Antennæ inserted at or more or less above middle of 

 the eye; third joint more or less longer than second, or, in subgenus 

 Eurijthia, second joint as long as or longer than third; arista with 

 second joint short, rarely longer. Thorax rectangular; three or 

 four postsutural dorsocentrals and one to two præsutural and two to 

 three or four postsutural acrostichals (sometimes only one, nemorum)] 

 no præsutural intraalar bristle except in truncata (and sometimes in 

 rudis). Scatellum with four to live marginal bristles on each side, 

 the apical pair small and crossing, except in nemorum and minor\ 

 a pair of discai bristles. Three sternopleural bristles. Above on ptero- 

 pleura a tuft of hairs, and one or two long bristles. Abdomen more 

 or less ovate; second segment with the excavation reaching hind 

 margin; af ter fifth segment a narrow sixth is visible, it is more or 

 less fused with the præhypopygial segment above, but distinct at 

 the sides, and shows a row of bristles. Sternites not concealed. Ab- 

 domen with discai and marginal bristles, second segment (generally) 

 without bristles; fifth segment with one or more rows of bristles, 

 and generally with a pair of discai. Fifth sternite more or less deeply 

 cleft, the lamellæ triangular or rounded. Genitalia somewhat large; 

 upper forceps elongated lancet-like or shorter and more triangular, 

 sometimes wing-like dilated to the sides at base and with a back- 

 wards pointing triangular tooth; it may be straight or more or less 

 S-like curved; arms of lower forceps of various shape, straight or 



