58 



*l)OlygriilinnJis Loew, Centur. X, 55. California. 

 femoralis Walker, List, etc., Ill, p. G03. Mexico. 

 mexieaims Macquart, Dipt. Ext»t. 11,2, p. G4, 6; Tab. XI, fig. 2. Mexico. 



Observation. — Uehphihis Anausis Walker, List, etc., Ill, p. 603 (Huds. E. 

 Terr.); Ilelopliilus stiputus Walker, List, etc.. Ill, p. 603 (Treutoii Falls), are 

 identical either with H. Uneatus ov with hamatus Loew. 



About the occurrence of the European Helopli. pendulm, versicolor and Jlorens 

 in N. America, see ante, at the end of Chrysotoxum. 



TEUCHOCNEMIS. 0') 



N. gen. • 



*Bacuntiiis Walker, (^^) List, etc., Ill, p. 5G3 {Milcsia). Georgia; Texas. 

 *lituratus Z/(?ew), Centur. IV, 80 (Pfe7'aitof(?s). Pennsylvania. 



PTERALLASTES. 



Loew, Centur. IV, 80, 18G3. 

 ■"thoracicus Loew, Centur. IV, 80. Pennsylvania. 



MALLOTA. 



Meigen, Syst. Beschr. Ill, p. 377, 1822; Imatisma Macquart, Dipt. Exot. 



II, 2, p. G7. 

 "posticata Fahricius, Syst. Autl. p. 237,21 {Eristalis); Vv'iedemanu, Auss. Zw. 

 II, p. 194, 62 {Merodonf); Macquart, Dipt. Exot. II, 2, p. 68; Tab. XII, 

 fig. 2 {Imatisma). United States. 



* Syrphus cimbiciformis FaUen, Eristalis cimhiciformis Meigen. The north 

 of Europe (the identity of this species with the X. American one is ac- 

 knowledged by Mr. Loew in Neue Beitriige, IV, p. 18 and later, in Siliim. 

 Journ. Vol. XXXVII, p. 317). 



? Merodon Bautias Walker, List, etc. Ill, p. GOO. 

 **)ar<ia Say, Journ. Acad. Phil. VI, p. 163 (iliifeirt)7?2a?<?; (the female, described 



hj '&dij is i'li.sii oi Erintalis jlvmpes \N&\\k.gv, compare note II.) Catskill, 

 N. Y. ; Massachusetts; White Mts., N. H 



MERODON. 

 Meigen, Illig. Magaz. II, 1803. 

 Balaiius Walker, List, etc., Ill, p. COO. New York. 

 l.i^)arlitus Tl^a?/ter, List, etc.. Ill, p. .C99. Georgia, 



