326 Tachinidae. 



as or not much longer than second. Thorax with four postsutural 

 dorsocentrals, and three præ- and three postsutural acrostichals ; 

 a præsutural intraalar bristle. Scutellum with four marginal bristles 

 on each side, the apical small, crossing. Two sternopleural bristles 

 (as a rule). Abdomen ovate, with marginal bristles on second seg- 

 ment, and discai and marginal in various numbers on third and fourth ; 

 fifth segment with bristles all over. Genitalia small, hidden under 

 venter. Legs with the bristles not strong; hind tibiæ with an antero- 

 dorsal row of not dense, somewhat unequal bristles; claws and pul- 

 villi a little elongated in male; front tarsi in female simple. Wings 

 with first posterior cell very narrowly open or just closed, ending 

 somewhat before apex of wing; no costal spine. 



The species are parasitic on Heterocera^ especially smaller forms 

 as Tortricids and Pyralids; floralis is known to belong to Pantel's 

 group 1. 



Of the genus about 10 palæarctic species are known, mostly 

 somewhat southern forms. They are divided into some subgenera, 

 but only Nemorilla s. str. is represented in Denmark with one species; 

 the above characters only apply to this subgenus. (Of the other 

 subgenera Pelmatomyia B. B. has dilated front tarsi in female, and 

 Alsomyia B. B. only marginal abdominal bristles,) 



1. N. floralis Fall. 

 1820. Fall. Dipt. Suec. Muse. 36, 74, p. p. (Tachina). — 1838. Zett. Ins. 

 Lapp. 646, 50 et 1844. Dipt. Scand. III, 1148, 148 (Tachina). — 1896. Pand. 

 Rev. Entom. XV, 17, 20 [Exorista). — 1907. Villen. Ann. Soc. Ent. de Fr. 

 LXXVI, 386. — 1924. Stein, Arch. f. Naturgesch. 90, 6, 83. — T. maculosa 

 Meig. 1824. Syst. Beschr. IV, 265, 44 et 1838. VII, 222, 28 {Nemomea). — 1862. 

 Schin. F. A. I, 454 (Nemoraea). — 1889. B. B. Denkschr. Akad. Wiss. Wien, 

 LVI, 88, Tab. I, Fig. 12 et 1891. LVIII, 328. — 1907. Kat. palåarkt. Dipt. 

 III, 258. — 1921. Baer, Zeitschr. f. angew. Ent. VII, 148. — T. notabilis Meig. 

 1824. 1. c. IV, 226, 45 et 1838. VII. 222, 29 {Nemoraea). — 1862. Schin. F. A. I, 

 454 {Nemoraea). ^ 1891. B. B. 1. c. LVIII, 328. — 1907. Kat. palåarkt. Dipt. 



III, 258. — 1921. Baer, 1. c. VII, 149. — T . angustipemiis Meig. 1824. 1. c. 



IV, 333, 162 et 1838. VII, 255, 16 (Exorista). — 1862. Schin., F. A. I, 466, 

 (Exorista). — 1900. Villen. Bull. Soc. Ent. de Fr. 158, 6. — T. pahulina Mieg. 

 1824. 1. c. IV, 358, 207 et 1838. VII, 256, 28 (Exorista). — 1900. Villen. 

 1. c. 158, 5. 



Male. Frons above about as broad as the eye or narrower; orbits 

 much narrower than frontal stripe; jowls narrow but, however, a 

 little descending. Orbits greyish, black above; cheeks silvery; jowls 

 grey; frontal stripe velvet black or a little brownish. Frontal bristles 



