Micropalpus. 413 



many years ago, the female on Lolland at Bremersvold in June. The 

 species is known to be parasitic on Agrotis ypsilon and Saturnia 

 pavonia. I shall note tJiat one of my specimens shows a marginal 

 bristle on one side of second abdominal segment. 



Geograpliical distribution: — All Europe; towards the north 

 to middle Sweden. It occurs also in North America down into Mexico, 

 and here it is bred from A. ypsilon as in Europe, and from the North 

 American Carneades messoria. 



95. Micpopalpus Macq. 



This genus is very nearly related to and in most respects similar 

 to Linnaemyia. Head shaped as in this genus, but the male with the 

 frons narrower and without orbital bristles, and in this sex the outer 

 vertical bristles not individualised. Cheeks bare. Epistoma a little 

 less retreating, and cheeks narrower. Third antennal joint not twice 

 as long as second. Thorax and abdomen as in Linnaemyia^ and like- 

 wise male genitalia with an elongated triangular upper forceps, 

 drawn out in a spine-like apex, and triangular lower forceps. Legs 

 and wings as in Linnaemyia. 



The species are parasitic on Heterocera and belong to Pantel's 

 group 4. 



Of the genus at most towards 10 palæarctic species are known, 

 but some are doubtful; one occurs in Denmark, 



1. M. vulpinus Fall. 



1810. Fall. Vet. Acad. Handl. XXXI, 283 et 1820. Dipt. Suec. Muse. 

 23, 47 {Tachina). — 1824. Meig. Syst. Beschr. IV, 260, 35 (Tachina) et 1838. 

 VII, 217, 2, Tab. XXX, Fig. 18—23. — 1844. Zett. Dipt. Scand. III, 1087, 84 

 {Tachina). — 1862. Schin. F. A. I, 428. — 1895. Pand. Rev. Entom. XIV, 

 347, 1 {Linnaemyia). — 1907. Kat. palåarkt. Dipt. III, 209. — 1921. Baer, 

 Zeitschr. f. angew. Ent. VII, 131. — 1924. Stein, Arch. f. Naturgesch. 90, 6, 

 48 {Linnaemyia). 



Male. Frons above not as broad as the eye, somewhat protruding. 

 Cheeks less than half as broad as the eye. Orbits grey or whitish grey, 

 face for the rest white, a little silvery; frontal stripe red, with very 

 fine, pale hairs at the sides. Orbits sparingly with distinct, longish 

 black hairs; jowls likewise sparingly with black hairs and some 

 yeilow hairs behind. Occiput grey, below a little yellowish, with 

 pale hairs. Eyes with longish pale hairs. Antennæ black; third joint 



