Miltogramma. 219 



elongated conical; excavation on second segment only present at 

 base; there are only marginal bristles, more or less fme and decumbent, 

 on second segment none or a pair of small bristles. Genitalia relatively 

 small. Legs somewhat short, hind tibiæ with antero- and postero- 

 dorsal rows of not large bristles, and some ventral bristles about 

 the middle; in some species fourtli joint on front tarsi in male has 

 special hairs. Claws and pulvilli not elongated. Wings with first 

 posterior cell open, ending before apex of wing; discai angle rectangii- 

 lar or about, with a slight veinlet or fold; no costal spine. 



The species live as larvæ in the nests of burrowing bees and 

 fossorial wasps, feeding on the stored food. The female penetrates 

 into the nests of the bees for depositing, but when the host is a fossorial 

 wasp the female deposites the egg on the prey when the wasp is carry- 

 ing it in. The species occur, in accordance with their hosts, on sandy 

 piaces, often near shores, and are here seen flying rapidly and 

 running on the sand in watching their hosts. 



Of the genus some twenty European species are recorded, 3 

 occur in Denmark. 



Table of Species. 



1. Abdomen brown pruinose with only slight, shifting spots; 

 fourth joint of front tarsi in male with two strong nearly 

 rectangularly curved bristles 1. oestraceum. 



— Abdomen with constant or with shifting spots, strongly 

 contrasted towards the white pruinosity; front tarsi in 

 male either simple or with long, curved and short, curled 



hairs on fourth joint 2. 



2. Antennæ nearly all black; abdomen reddish at the sides, 

 whitish pruinose with three black, shining hindmarginal 

 spots on third to fifth segment; fourth joint on front tarsi 

 in male with long, curved and short, somewhat curled 



hairs 2. punctata. 



— Antennæ with the basal joints red; abdomen whitish 



pruinose with shifting brown spots ; tarsi in male simple . . 3. Germari. 



1. M. oestraceum Fall. 



1820. Fall. Dipt. Suec. Muse. 10, 17 {Tachina). — 1824. Meig. Svst. 

 Beschr. IV, 229, 4. — 1844. Zett. Dipt. Scand. III, 1202, 1 et 1849, VIII, 3254, 

 1 et 1859. XIII, 6146, 1. — 1862. Schin. F. A. I, 506. — 1895. Pand. Kev. 

 Entom. XIV, 292, 6. — 1900. Villen. Bull. Soc. Ent. de Fr. 381, 11. — 1907. 

 Kat. palåarkt. Dipt. III, 506. — 1917. Kram. Abhandl. Nat. Gesell. Gorlitz, 

 28, 255, Fig. 1. — 1924. Stein, Arch. f. Naturgesch. 90, 6, 215, 7. — M. tessel- 



