Diptera danica : genera and species of flies hitherto found in Denmark . he species are parasitic on Heterocera, erinaceus is also bredfrom a Trypetid. Two palæarctic species are known, one of them only knownfrom Greenland. 1. P. erinaceus Fabr. 1796. Fabr. Ent. Syst. IV, 328, 68 {Musca) et 1805. Syst. Antl. 311, 10(Tachina). — 1810. Fall. Vet. Acad. Handl. XXXI, 275 et 1820. Dipt. 15, 28 {Tachina). — 1824. Meig. Syst. Beschr. IV, 345, 183 [Tachina)et 1838. VII, 214, 1, Tab. LXIX, Fig. 56—60. — 1844. Zett. Dipt. Scand. III,1078, 75 [Tachina). — 1862. Schin. F. A. I, 439. — 1889. B.
Diptera danica : genera and species of flies hitherto found in Denmark . he species are parasitic on Heterocera, erinaceus is also bredfrom a Trypetid. Two palæarctic species are known, one of them only knownfrom Greenland. 1. P. erinaceus Fabr. 1796. Fabr. Ent. Syst. IV, 328, 68 {Musca) et 1805. Syst. Antl. 311, 10(Tachina). — 1810. Fall. Vet. Acad. Handl. XXXI, 275 et 1820. Dipt. 15, 28 {Tachina). — 1824. Meig. Syst. Beschr. IV, 345, 183 [Tachina)et 1838. VII, 214, 1, Tab. LXIX, Fig. 56—60. — 1844. Zett. Dipt. Scand. III,1078, 75 [Tachina). — 1862. Schin. F. A. I, 439. — 1889. B. B. Wiss. Wien, LVI, 138, Tab. X, Fig. 270 et 1891. LVIII, 387. — 1896,Pand. Rev. Entom. XV, 100, 2. — 1907. Kat. palåarkt. Dipt. III, 376. — , Zeitschr. f. angew. Ent. VII, 367. — 1924. Stein, Arch. f. , 6, 148. Male. Frons above considerably broader than the eye; cheekssomewhat narrowing downwards. Orbits, jowls and cheeks bluishgrey, in certain views somewhat silvery; frontal stripe velvet black. Petina. 539. Orbits with only few fine hairs, cheeks a little more distinctly hairy andwith a row of bristles from the frontals to near lower end of the eye;jowls with a few bristly hairs behind. Occiput grey, with only few palehairs below, for the rest with rows of black hairs. Antennæ black; aristashort, thickened to some-what near apex, but evenlytapering. Palpi black. Thoraxblack, bluish grey pruinosealmost withoiit stripes, onlyin front with indication oftwo quite fme stripes; scii-tellum coloured as has rather scatteredblack hairs. Abdomen black,shining, slightly white prui-nose on front part of thirdand fourth segment, leavingbroad hind margins and amiddle stripe black; abdomen is black-haired, with marginal bristles, forming a row on second,third and fourth segment, and a double row on fifth; the middlepair in each row is placed somewhat inwards but are not real discals;the bristles strong. Legs black,
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