Ernestia. 503 



8. E. rudis Fall. 



1810. Fall. Vet. Acad. Handl. XXXI, 270 et 1820. Dipt. Suec. Muse. 

 27, 56 {Tachina). — 1844. Zett. Dipt. Scand. III, 1100, 97 {Tachina). — 1896. 

 Pand. Rev. Entom. XV, 34, 5 {Erigone). — 1898. Brauer, Sitzungsber. Akad. 

 Wiss. Wien, CVII, 532, 3 {Panzeria). — 1907. Villen. Ann. Soc. Ent. de Fr. 

 LXXVI, 387. — 1907. Kat. palåarkt. Dipt. III, 217. — 1921. Baer, Zeitschr. 

 f. angew. Ent. VII, 134. — 1924. Stein, Arch. f. Naturgesch. 90, 6, 51, 2. — 

 Nemoraea laevigata Meig. 1838. Syst. Beschr. VII, 222, 9. — 1862. Schin. 

 F. A. I, 454. — T. strenua Meig. 1824. 1. c. IV, 249, 17 et 1838. VII, 221, 12 

 {Nemoraea). — 1844. Zett. 1. c. III, 1101, 98 et 1855. XII, 4696, 98 {Tachina). 

 — 1862. Schin. F. A. I, 450 {Nemoraea). — T. vagans Meig. 1824. 1. c. IV, 248, 

 16 et 1838. VII, 221, 13 {Nemoraea). — Nemoraea varia Meig. 1838. 1. c. VII, 

 223, 26. — 1862. Schin. F. A. I, 455. 



Male. Head a little small; frons narrow above (Vs — ^/e of the 

 breadth of the eye), somewhat protruding; cheeks about one third 

 as broad as the eye, and jowls about half the height of the eye. Orbits 

 and face whitish pruinose, the former in some views dark inwardly; 

 owls grey; frontal stripe black, widening downwards. No distinctly 

 individiialised ocellar or vertical bristles. Frontal bristles reaching 

 just below insertion of antennæ. Orbits with a few black hairs; jowls 

 with long black hairs. Occiput grey, with whitish hairs, and rather 

 dense rows of black hairs behind postocular bristles. Eyes with longish 

 yellowish hairs. Antennæ more or less pale, sometimes all reddish, 

 or only second joint and base of third more or less reddish; third 

 joint somewhat longer than second; arista thickened in fully basal 

 half, second joint short. Palpi yellow. Thorax dark bluish black, 

 slightly shining, greyish white pruinose on anterior part and here 

 with four stripes, the median narrow, diverging behind; the pruinose 

 middle stripe is often divided by a narrow median stripe, so that 

 five dark stripes are seen; scutellum more or less reddish brown. 

 Thorax black-haired ; four postsutural dorsocentrals and generally 

 two præ- and three or four postsutural acrostichals; all bristles 

 somewhat weak; generally no præsutural intraalar bristle, but some- 

 times one present. Scutellum with generally five marginal bristles 

 on each side, the apical more or less small, crossing. Abdomen black, 

 somewhat shining, with a red spot on each side, stretching over second 

 to fourth or fifth segment; third to fifth segment with a broad bluish 

 white pruinose front band. Abdomen black-haired; third and fourth 

 segment with generally two pairs of discai bri&tles, third with a pair, 

 fourth with a row of marginal; often a pair of bristles on second seg- 

 ment; the bristles not strong. After the fifth segment a narrow sixth 



