Perichaeta. 435 



102. Pericliaeta Rond. 



Smallish species, black, almost without pruinosity. Head a little 

 broader than thorax, convex behind, almost not puffed out below, 

 higher than long. Frons broad and equal in both sexes, slightly pro- 

 truding. Cheeks narrow; jowls about one third of the height of the 

 eye. In both sexes ocellar, inner and outer vertical and two orbital 

 bristles, the latter directed somewhat outwards. Postocellar and 

 small occipital bristles present. Occiput nearly all black-haired. 

 Frontal bristles descending to end of second antennal joint, a reclin- 

 ate bristle above, and behind it an outwards directed bristle. Cheeks 

 bare. Vibrissæ ascending. Eyes hairy. Epistoma only a little retreating, 

 but somewhat strongly reflected and protruding just below. Oral 

 cone and proboscis rather long and slender; labella small, oval, Palpi 

 thin. Antennæ inserted well above middle of the eye, third joint 

 thrice as long as second; arista with second joint a little elongated. 

 Thorax nearly quadratic; three postsutural dorsocentrals and two 

 præ- and three postsutural acrostichals; a præsutural intraalar 

 bristle. Scatellum with four marginal bristles on each side, the apical 

 small, diverging, and also the lateral rather small. Four sterno- 

 pleural bristles. Abdomen with excavation on second segment not 

 by far reaching hind margin, the segments with numerous discai 

 and marginal bristles. Genitalia small. Legs with anterodorsal bristles 

 on hind tibiæ unequal; claws and pulvilli not elongated; front tarsi 

 in female simple. Wings with first posterior cell open, ending some- 

 what before apex of wing; discai angle rounded; costal spine quite 

 small. 



To the genus only one species belongs, also occurring in Den- 

 mark. 



1. P. unicolor Fall. 



1820. Fall. Dipt. Suec. Muse. 35, 73 {Tachina). — 1824. Meig. Syst. Beschr. 

 IV, 398, 277 {Tachina) et 1838. VII, 261, 19 (Phorocera). — 1838. Zett. Ins. 

 Lapp. 647, 54 et 1844. Dipt. Scand. III, 1166, 169 (Tachina). — 1862. Schin. 

 F. A. I, 493 (Phorocera). — 1889. B. B. Denkschr. Akad. Wiss. Wien, LVI, 99, 

 Tab. IV, Fig. 70 et 1891. LVIII, 352. — 1895. Pand. Rev. Entom. XIV, 333, 5 

 (Phorocera). — 1907. Kat. palåarkt. Dipt. III, 356. — 1921. Baer, Zeitschr. f. 

 angew. Ent. VII, 360. — 1924. Stein, Arch. f. Naturgesch. 90, 6, 115. — Tachina 

 funebris Zett. 1838. Ins. Lapp. 647, 58. 



Male. Frons above broader than the eye. Orbits and cheeks 

 bluish white pruinose, the former somewhat darkened; jowls bluish 



28* 



