422 Tachinidae. 



boscis short ; clypeus elongated horse-shoe-shaped ; labium not double 

 as long as broad, labella large, oval; labriim strong aboiit as long as 

 labium; hypopharynx short, lialf as long as labrum; palpi a little 

 dilated, spindle-shaped and flattened. Antennæ inserted at middle 

 of the eye; third joint somewhat longer than second. Thorax rectan- 

 gular; four postsutural dorsocentrals, and three præ- and three post- 

 sutural acrostichals; a præsutural intraalar bristle. Scutellum with 

 about five marginal bristles on each side, the apical the smaller, 

 Crossing. Two sternopleural bristles. Pteropleura with a bunch ot 

 bristles and hairs above. Abdomen ovate; excavation on second 

 segment reaching hind margin ; sternites not concealed ; only marginal 

 bristles, second segment with none ; fifth with two rows. Fifth sternite 

 cleft to near base. Genitalia not large, bent in below venter. Legs 

 not strong; claws and pulvilli in male strongly elongated. Wings with 

 first posterior cell narrowly open, ending somewhat near apex of 

 wing; discai angle about rectangular, without or with a short veinlet 

 or fold; no or a small costal spine. Thoracic squamulæ haired above. 



This genus is known alone by the hairy thoracic squamulæ, 

 which is unique among the Tachininæ. 



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

 group 4 (Thompson 1923). 



Of the genus about half a score of palæarctic species are recorded, 

 but several of them are doubtful; one or two species occur in Den- 

 mark. 



Table of Species. 



1. Large species; wings yellow at base; black abdominal stripe 



narrow L pellncida. 



— Smaller species ; wings only slightly yellow at base, but otlier- 



wise more tinged; black abdominal stripe broader 2. rubrica. 



1. N. pellucida Meig. 



1824. Meig. Syst. Besckr. IV, 254, 26 (Tachina) et 1838. VII, 221, 1. — 

 1844. Zett. Dipt. Scand. III, 1099, 96 et 1849. VIII, 3242, 96 et 1855. XII, 

 4695, 96 {Tachina). — 1862. Schin. F. A. I, 449. — 1895. Pand. Rev. Entom. 

 XIV, 5, 4 (Exorista). — 1907. Kat. palåarkt. Dipt. III, 223. — 1921. Baer, 

 Zeitschr. f. angew. Ent. VII, 136. — 1924. Stein, Arch. f. Naturgesch. 90, 6, 54. 



— N. conjuncta Macq. 1848. Ann. Soc. Ent. de Fr. 2, VI, 120, 15, Tab. VI, 

 fig. 5. _ 1889. B. B. Denksckr. Akad. Wiss. Wien, LVI, 116. 



Male. Frons above not one fourth of the eye; cheeks about as 

 broad as frons. Orbits yellowish seen from above, but from in front 

 greyish; cheeks dirty yellowish pruinose, darker in certain views; 



