40 
Parasitic Diptera 
Carnus. 
Nitzsch, 1818, p. 305 and p. 283. 
Cenchridobia, Schiner, 1862, p. 435, and 1864, p. 334. 
1. Carnus hemapterus, Nitzsch. 
Carnus hemapterus, Nitzsch, 1818, p. 305; Germar, 1822 (?), pi. 24 and 25; 
Egger, 1854, p. 3, pi. ii, figs. 7-11; Bezzi, 1900, p. 522; Collin, 1911, p. 138; 
Bezzi, 1911, p. 115; de Meijere, 1912, pp. 1-18, figs. 1-12; Melander, 1913, 
p. 237, Stobbe, 1913, p. 193; Bezzi, 1916, pp. 108 and 177; Wasielewski and 
Wuelker, 1918, p. 117; Engel, 1920, pp. 249 and 258; Frey, 1921, p. 151, pi. x, 
fig. 125. 
Cenchridobia eggeri, Schiner, 1862, p. 436 and 1864, p. 335; Brauer, 1880, 
p. 117, 3 and 1883, pp. 40 and 87; Bezzi, 1900, p. 521; Becker, 1905, p. 36. 
Carnus setosus, Stobbe, 1913, p. 193. 
Geographical distribution. Only known from Europe : Finland, Germany. 
Austria, Hungary, Roumania and Middle Italy. 
V. CHORTOPHILA AND NEOTTIOPHIL UM. 
It may be finally recorded that in bird nests are to be found many other 
species of Myiodaria, which are not parasitic, but only inquiline, living prob¬ 
ably on excrement or on organic refuse. Falcoz in 1914, p. 60, has pointed 
out the great number of dipterous larvae found in bird nests. It is to be noted 
that these flies, as far as is known, belong to the lower forms of Anthomyidae 
and even to the Acalypterata. 
Of the former there are only the two following species, one from Europe 
and one from North America: 
1. Chortophila eannabina, Stein, 1916, p. 169; Kramer, 1917, p. 49; Engel, 
1920, p. 258. 
Germany; bred by Kramer from larvae in nest of Acanthis eannabina. 
2. Chortophila nidicola (Aldrich). 
Hylemyia nidicola, Aldrich in Plath, 1919, p. 380. 
State of Washington, U.S.A.; bred by Plath from larvae found in various 
bird nests. 
Among Acalypterate flies there is the following very interesting genus: 
N EOTTIOPHIL UM. 
Frauenfeld, 1868, p. 894. 
1. Neottiophilum praeustum (Meigen). 
Dryomyra praeusta, Meigen, 1826, p. 257. 
Neottiophilum praeustum,, Mik, 1882, pp. 98 and 194, 1887, p. 34 and 
1894, p. 166; Brauer, 1883, pp. 40 and 86; v. Roeder, 1892, p. 204 and 1895, 
p. 270; Strobl, 1894, p. 86; Becker, 1902, p. 219 and 1905, p. 38; Bezzi, 1911, 
p. 115; Kramer, 1917, p. 58; Engel, 1920, p. 250. 
