146 Tachinidae. 



towards each other at apex. Squamular piece at base of costa yellowish. 

 Siibcostal sclerite withoiit bristles. Squamulæ whitish to slightly 

 yellowish. Halteres yellowish. 



Female. Similar; frons as broad as or broader than the eye. 

 Thorax rather distinctly white pruinose in front with the beginning 

 of two median lines, and abdomen distinctly bluish white pruinose, 

 especially when seen from behind, and hence less shining. 



Length 6 to nearly 10 mm. 



L. sericata is common in Denmark; Copenhagen, Amager, Dam- 

 hussø, Charlottenlund, Dyrehaven; in Jutland at Nymindegab, 

 Horsens, Skanderborg, Aalborg, Blaavand, Bovbjerg and Skagen; 

 the dates are ^/g — ^^/g. One of our specimens is bred from larvæ 

 living in a human ear, where they caused a bad inflammation; this 

 case is mentioned by Meinert (Entom. Medd. I, 1888, 119, as nobilis). 

 Two other specimens are bred from pupæ found in sand on the shore 

 at Blaavand in August. The species is often present at shores. 



Geographical distribution: — Europe; towards the north to 

 middle Sweden. It is also recorded from Japan, Africa and North 

 America, and it has been introduced into Australia very early. 



4. L. simulatrix Pand. 



1896. Pand. Rev. Entom. XV, 218, 15 {Calliphora). — 1907. Villen. 

 Ann. Soc. Ent. de Fr. LXXVI, 398. — 1907. Kat. palåarkt. Dipt. III, 542. — 

 1911. Kram. Abhandl. Nat. Gesell. Gorlitz, 27, 42, Tab. III, Fig. 6. — 1924. 

 Stein, Arch. f. Naturgesch. 90, 6, 263, 7. 



Male. Frons narrow above but orbits not touching, the frontal 

 stripe distinct in the whole length. Orbits blackish above, down- 

 w^ards together with cheeks and jowls greyish white silvery. Frontal 

 stripe black. Orbits with fine sparse hairs, jowls with blackish or 

 brownish hairs. Occiput greenish black, whitish along the eye- 

 margin, all black-haired. Antennæ black, third joint about four 

 times as long as second. Palpi yellow. Thorax with two postsutural 

 acrostichals. Abdomen with the marginal hairs on third segment 

 generally somewhat strong, but without bristles. Forceps some- 

 what long; upper forceps carinate at base, cleft to the middle, the 

 branches thin, curved ventrally, pointed; the arms of lower for- 

 ceps a little broad at base, attenuated and styliform outwards, 

 curved ventrally and with the not pointed apex bent about rectangu- 

 larly. Wings a little or more brownish tinged, most at base; squa- 

 mular piece at base of costa black; subcostal sclerite with bristles. 



