CATALOGUE OF NORTH AMERICAN DIPTERA. 169 



SCHINER, Fauna Austr., n, 363, 1864 (Shnulia). 



OSTEN SACKEN, Amer. Entomologist, 11, 229, 1870, transformations; Berl. 



Ent. Zeitschr., xxxvn, 1892, 452, discussion of family characters. 

 COQUILLETT, Bull. io, new series, Div. of Ent., 66-69, table and brief desc. 



of N. A. species. 



MEINERT, Eucephale Myggelarver, 458, 1886, bibliog. of transformations 

 and study of same in S. ornatum, with pi. iv, f. 115-127. 

 Note. The following references relate to biology, etc., of species which 

 were not specifically determined : 



RILEY, Dept. Ag. Kept., 1884, 340-345, pi- ix, f. i, 2, 3. 

 RILEY and HOWARD, Insect Life, brief items and extracts from correspond- 

 ence, Vol. i, 15, 61, 143, 224, 314; n, 7-11; iv, 143; vn, 426. 

 HOWARD, Insect Life, i, 99, habits of a species at Ithaca, N. Y. 

 TOWNSEND, Trans. Amer. Ent. Soc., xx, 45, describes early stages and hab- 

 its of a species inhabiting Grand Canon of the Colorado; figs. 

 HAGEN, Can. Ent., xm, 150, notes on a larva; Ent. Mo. Mag., 1883, 254, 



note. 



LUGGER, 2d Rept. Ent. Minn., 1896, 172-182. 



KELLOGG, Psyche, Feb., 1901, 166, says larvae live largely on diatoms. 

 argus WILLISTON, Dipt, of Death Valley Exped., 253. Argus Mts., Cal. 



COQUILLETT, Proc. Wash. Acad. Sci., n, 394, regards as a synonym of i'it- 



tatus. Johannsen, in lift., does not. 



WILLISTON, Biologia, Dipt., i, 223, oc. in Guerrero, Mex. 

 bracteatum COQUILLETT, Bull, io, n. ser., Div. Ent., 69. Mass., Cal. 

 cinereum BELLARDI, Saggio, i, 13. Mex. 



TOWNSEND, Proc. Cal. Acad. Sci., iv, 593, note on oc. in Lower Cal. 



(Mex.). 

 decorum WALKER, List, i, 112. Martin Falls, Canada. 



COQUILLETT, Bull, io, n. ser., Div. Ent., makes this a synonym of vittatum 



ZETTERSTEDT ; but the description seems to contradict this. 

 fulvum COQUILLETT, Proc. U. S. N. M., xxv, 96. Mentioned in the following as 



ochraceum WALKER: 

 COQUILLETT, Bull, io, n. ser., Div. Ent., oc. in Col. and Mont., etc. ; Proc. 



Wash. Acad. Sci., 11, 393, oc. in Alaska and British Col. 

 COCKERELL, Ent. News, vm, 100, oc. in N. M. 

 BAKER, Ent. News, vm, 172, oc. in Col., and notes. 

 glaucum COQUILLETT, Proc. U. S. N. M., xxv, 97. Kansas City, Mo. 

 griseum COQUILLETT, Bull, io, n. ser., Div. Ent., 69. Col. 

 hirtipes FRIES., Mon. Simuliar., 17, pi. i, f. i, 1824. Europe. 



MEIGEN, Syst. Beschr., vi, 311 and 312 (rufipcs and hirtipes}. 

 ZETTERSTEDT, Dipt. Scand., ix, 3426. 

 SCHINER, Fauna Austr., n, 368. 

 JOHANNSEN, Ent. News, xiv, 14, oc. in N. Y. 

 Idaho Johannsen in lift. 



invenustum WALKER, List, i, 112. Martin Falls, Canada. See also pccuarum. 

 irritatum LUGGER, 2d Rept. Ent. Minn., 1896, 177, f. 145, 146, no description. 



Minn. 

 meridionale RILEY, Rept. Dept. Agriculture, 1886. 513, pi. vn and vm. Same 



distribution and habits as pecuarum; called the Turkey Gnat. 

 TOWNSEND, Psyche, July, 1891, 107 (occidental) . New Mex. [Coq.] 

 COQUILLETT, Bull, io, n. ser., Div. Ent., 68, fig. Mass., Nebr., Texas. 

 RILEY and HOWARD, Insect Life, i, 14 ; said to cause the death of thousands 

 of chickens and turkeys yearly in Va. 



