Macquartia. 243 



Female. Somewhat similar, but paler and more pruinose. Frons 

 broader than the eye; jowls broader than in male; orbits grey, cheeks 

 more whitish; frontal stripe reddish. Antennæ inserted liigher than 

 in male, at about middle of the eye, Thorax quite grey pruinose, 

 with four darker grey stripes, the median abbreviated behind. Front 

 tarsi simple. 



Length 6 — 8 mm. 



M. grisea is not common in Denmark; Ordrup Mose, Dyrehaven, 

 Grib Skov; on Lolland in Kældskov, at Maribo and Nysted, and 

 in Jutland at Sønderborg and Kjelstrup; the dates are "/g into 

 August. No host seems hitherto known, but in Nielsen's collection 

 there is a specimen bred from the larva of Chrysomela sanguinolenta 

 and another from fastuosa; one was bred on ^g? the other on ^g. 



Geographical distribution: — Europe; towards the north to 

 middle Sweden. 



3. M. tenebricosa Meig. 



1824. Meig. Syst. Beschr. IV, 270, 54 {Tachina) et 1838. VII, 229, 5. — 

 1862. Schin. F. A. I, 531. — 1900. Stein, Ent. Nachricht. XXVI, 149. — 1907. 

 Kat. palåarkt. Dipt. III, 408. — Tachina tristis Meig. 1824 I. c. IV, 271, 55 et 

 1838. VII, 229, 6. — 1900. Stein, 1. c. XXVI, 150. — Tachina nitida Zett. 

 1838. Ins. Lapp. 646, 52 et 1844. Dipt. Scand. III, 1180, 183 et 1859. XIII, 

 6139, 183. — 1924. Stein, Arch. f. Naturgesch. 90, 6, 156, 6. — Zophomyia 

 rufipalpis Macq. 1854. Ann. Soc. Ent. de Fr. 3, II, 746, 2, Tab. XVI, fig. 9. 



Male. Frons quite narrow, eyes nearly touching above, it is 

 somewhat strongly protruding; cheeks broad, and jowls likewise 

 broad, but scarcely half as broad as the eye is high. Head grey; 

 frontal stripe velvet black. Vibrissæ very slightly ascending. Eyes 

 brown-hairy. Orbits with black hairs, continued only just on the 

 upper part of the cheeks; jowls black-haired. Occiput grey, all 

 black-haired. Antennæ black, short, third joint a little longer than 

 second; arista thickened just at base, short-pubescent. Palpi black, 

 brown or yellow, in the latter case generally dark at apex, Thorax 

 black and shining, a little æneous or sometimes bluish ; it is not prui- 

 nose or only slightly in front, and then with the beginning of four 

 stripes. Thorax black-haired; three præ- and three postsutural 

 acrostichals. Scutellum with three marginal bristles on each side, 

 the apical strong, crossing; sometimes a weak bristle developed 

 between the apical and the next. Abdomen æneous or bluish black, 

 shining, only very slightly greyish pruinose; it is black-haired, with 



16* 



