Brachychaeta. 441 



truding. Cheeks broad, and jowls half the height of the eye. In both 

 sexes ocellar, inner and outer vertical and two orbital bristles. Post- 

 ocellar and occipital bristles relatively strong. Some black hairs 

 behind postocular bristles. Frontal bristles descending to insertion 

 of arista, an upper of them directed outwards in both sexes, and 

 behind it still a small bristle. Cheeks bare. Vibrissæ strong, ascending 

 to two thirds of the height. Eyes bare. Epistoma slightly reflected 

 below. Oral cone and proboscis relatively long and the latter slender; 

 clypeiis narrow. Palpi a little dilated outwards, most in female. 

 Antennæ inserted high above middle of the eye, third joint in male 

 long, about six times as long as second, in female shorter, about 

 thrice the second; arista with second joint slightly elongated. Thorax 

 rectangular; three postsutural dorsocentrals, and three præ- and 

 three postsutural acrostichals; a præsutural intraalar bristle. Scu- 

 tellum with four marginal bristles on each side, the apical erect and 

 Crossing; a pair of erect, diverging præapical bristles. Three (or four) 

 sternopleural bristles. Pteropleura with a few hairs and a bristle 

 above. Abdomen with the excavation on second segment not reaching 

 hind margin, with discai and marginal bristles, second segment with 

 a pair of marginal. Genitalia small, hidden in fifth segment. Legs 

 with anterodorsal bristles on hind tibiæ unequal; claws and pulvilli 

 in male not elongated; front tarsi in female simple. Wings somewhat 

 short; first posterior cell narrowly open, ending in considerable 

 distance from apex of wing; discai angle obtuse, some times with in- 

 dication of a quite minute veinlet; posterior cross- vein near the middle 

 between medial cross-vein and angle; a long costal spine. 



The species has been bred from Notodonta dromedarius (see 

 below), and it belongs to Pantel's group 2 (Thompson 1924). 



Only one species is known, also occurring in Denmark. 



1. B. strigata Meig. 



1824. Meig. Syst. Beschr. IV, 375, 235 {Tachina) et 1838. VII, 249, 6 

 (Degeeria). — 1907. Villen. Wien. Ent. Zeitg. XX,VI, 248, 15 {Degeeria). — 

 1921. Baer, Zeitschr. f. angew. Ent. VII, 361. — 1924. Stein, Arch. f. Natur- 

 gesch. 90, 6, 116. — Tachina hystrix Zett. 1844. Dipt. Scand. III, 1053, 46. — 

 1896. Pand. Eev. Entom. XV, 112, 6 [Latreillia). — 1907. Villen. Ann. Soc. 

 Ent. de Fr. LXXVI, 391 {Latreillia). — B.spinigera Rond. 1861. Dipt. Ital. 

 Prodr. IV, 38, 4. — 1889. B. B. Denkschr. Akad. Wiss. Wien, LVI, 107, Tab. V, 

 Fig. 107. — 1907. Kat. palåarkt. Dipt. III, 357. 



Male. Frons double as broad as the eye, eye-margins parallel; 

 cheeks very broad, a little narrowing downwards. Orbits brownish 



