Empididae. 269 



Geographical distribution : — Europe down into Italy ; towards 

 the north to northern Sweden, and in Finland. 



2, T. annulimana Meig. 



1822. Meig. Syst. Beschr. III, 69, 2 (Tachydromia) , et 1838. VII, 95,3 

 {Tachypeza). — 1860. Loew, Zeitschr. fiir Entom. Breslau, XIV, 28, 10. — 

 1862. Schin. F. A. I, 93 (Tachydromia). — 1903. Kat. palåarkt. Dipt. II, 

 276. — Tachypeza alhitarsis: 1842. Zett. Scand. I, 313, 2. 



Male. Vertex and frons black, shining, the latter duU above the 

 antennæ. Palpi large, with long, whitish yellow hairs and a black 

 bristle at the apex. Occiput grey priiinose with a few black bristles 

 above, and with white hairs below. Antennæ black or brown, the 

 basal joints reddish. Thorax black, shining, with short, black hairs, 

 the two last hairs in each dorsocentral row are strong bristles, so 

 that there are four strong bristles posteriorly on the disc. A noto- 

 pleural and a postalar bristle present, both black and strong. Scutel- 

 lum with four black marginal bristles. Pleura black, shining, the 

 propleural parts not grey, so that there is no grey spot above the 

 front coxæ. Abdoinen black, shining, with short, brownish hairs. 

 Venter of the same colour, the hairs towards the apex a little longer 

 and darker. Legs black and yellowish; the front coxæ yellow, the 

 posterior coxæ black, front femora black, with the base and apex 

 yellowish, sometimes also yellowish in the middle, so that there are 

 two blackish rings; middle femora yellowish, a little brownish above; 

 anterior tibiæ blackish, with the base narrowly yellowish; the hind 

 legs blackish, except the base of the tibiæ; all tarsi with the two first 

 joints yellow or whitish yellow with dark apex, the three last joints 

 blackish. Front femora strongly thickened, middle femora moderately 

 thickened; front tibiæ somewhat thickened, middle tibiæ with a broad, 

 inwards curved tooth at the apex on the ventral side. Anterior 

 femora with rows of long, yellow hairs below, but without spines; 

 middle femora with a black bristle at the apex on the antero-dorsal, 

 and a shorter and weaker on the postero-dorsal side; for the rest 

 the legs short-haired, only on the postero-ventral side of the hind 

 femora a few longer hairs on the basal half. Wings hyaline, with two 

 blackish brown bands as in arrogans, but the hyaline band between 

 them broader. Veins dark brown, the radial vein curved in the middle 

 and lying much nearer to the costa than in arrogans. Balteres white. 



Female. Similar to the male; the front femora a little less 

 thickened, and broadly yellow at the base, and the hairs below the 

 anterior femora shorter; the middle tibiæ simple, and the bristles at 

 the apex of the middle femora small. 



