86 CATALOGUE OF NORTH AMERICAN DIPTERA. 



manca Osten Sacken, Mon. N. A. Dipt., iv, 178.— N. J. 



subcinerea Osten Sacken, Proc. Acad. Nat. Sci. Phil., 1S59, 231 ; Mon. N. A. 



Dipt., IV, 181, pi. II, f. 4. — Trenton Falls, N. Y. ; D. C. Cat. gives Quebec, 

 sulphurella Osten Sacken, Proc. Acad. Nat. Sci. Phil., 1859, 230; Mon. N. A. 



Dipt., IV, 180, pi. II, f. 2. — D. C. ; Trenton Falls, N. Y. Cat. gives 



Quebec. N. J.— Smith Cat. 

 virgata Doane, Jour. N. Y. Ent. Soc, viii, 189, pi. vii, f. 21. — Tokeland, Wash. 



EMPEDA. 



Osten Sacken, Mon. N. A. Dipt., iv, 183, 1869. 

 stigmatica Osten Sacken, Mon. N. A. Dipt., iv, 184. — Trenton Falls, N. Y. 



MONGOMA. 



Westwood, Trans. Em. Soc. Lond., 1881, 364. 



WiLLiSTON, Ent. News, vii, 185, 1896, reports the genus from N. A. ; Trans. 

 Ent. Soc. Lond., 1896, 291. 

 manca Williston, Trans. Ent. Soc. Lond., 1896, 293. — St. Vincent, W. L 

 pallida Williston, loc. cit., and pi. x, f. 67. — St. Vincent, W. L 



PARATROPESA. 



ScHiNER, Verb. Zool.-Bot. Ges., xvi, 932, 1866; Novara, 44, 1868. 

 praeusta Osten Sacken, Biologia, Dipt., i, 8. — Jalapa and Orizaba, Mex. 



HELOBIA. 



St. Fargeau, Encycl. Meth., x, 585, 1825. 



Meigen, Syst. Beschr., vi, 282, 1830 (Symplecta). 



Schiner, Fauna Austr., 11, 545, 1864 (id.). 



Philippi, Verb. Zool.-Bot. Ges., 1865, 615 (Idioiieura). 



Osten Sacken, Mon. N. A. Dipt., iv, 170, 1869 (Symplecta) ; Stud. 



TipuL, II, 197, 1887, notes. 

 MiK, Wien. Ent. Zeit., 1886, 318 {Symplectomorpha) [O. S.]. 

 punctipennis Meigen, Syst. Bescbr., i, 147 {Limnohia) ; vi, 283 (Symplecta) ; 



Klassif., 57, 1804 (Limonia Jiybrida). — Europe. 

 Macquart, Hist. Nat. Dipt., i, 109. 

 Staeger, Dipt. Dan., 39, 1840 (Symplecta). 

 Schiner, Fauna Austr., 11, 543 (id.). 



Walker, List, 1,-48 (Limnohia cana). — Martin Falls, Canada. [O. S.] 

 Osten Sacken, Proc. Acad. Nat. Sci. Phil., 1859, 228; Mon. N. A. Dipt., 



IV, 171, pi. I, f. 20, and IV, f. 21 (Symplecta). — N. A. generally; D. C, 



Ala., N. Y., Canada, 111. 

 Hart, Bull. 111. State Lab. N. H., iv, 199, desc. and figs, of larva, which 



lives in sand of river bank. 

 Coquillett. Proc. Wash. Acad. Sci., 11, 399, oc. in Alaska. 



Common in Idaho and Washington. — J. M. A. 



Note.- — I have not seen the description of hybrida, and Meigen himself 

 abandoned it. There may be some reason, unknown to me, for not 

 restoring it as the first name of the species. 



CHIONEA. 



Dalman, Kongl. Vetensk. Ak. Handl, 1816, 102, pi. n, f. 2. 



Osten Sacken, Mon. N. A. Dipt., iv, 168, 1869; Stud. Tipul., 11 to6. 



