SYRPHIDAE. 135 



Tcncliocncniis. 



0. Sacken, Bull. Buff. Soc. N. H, III, 58; 1876.(2''^). 

 *Bacniitius Walker, List, etc. Ill, 563 (Milesia). — Georgia; Texas, ("s). 

 *lituratus Loew, Centur. IV, 81 (Pkrallastes). — Peuusylvauia. 



Pterallastes. 



Loew, Ceutur. IV, 80; 1863. 

 *thoracicus Loew, Centur. IV, 80. — Pennsylvania, 



Mallota. 



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



II, 2, 07 ; 1842. 



*posticata Fabricius, System. Antl. 2.37, 21 (Eristalis) ; "Wiedemann, 

 Auss. Zw. II, 194, 62 (translation from Fabric); Macquart, Dipt. 

 Exot. II, 2, 68; Tab. XII, f. 2 (Imatisma). — Atlantic States; 

 the same, or a similar species in California (0. Sacken, Western 

 Dipt., 338). 

 Syrphus cimhiciformis Fallen, Eristalis cimhiciformis Meigen. The 

 north of Europe (the identity of this species with the N. American 

 one is acknowledged by Mr. Loew in Neue Beitr. , IV, 18 and 

 in Sillim. J. Vol. XXXVII, 317). 

 *barda Say, J.Acad. Phil. VI, 163; Compl. Wr. 11,357 (Milesia) male; 

 (the female described by Say is that oi Eristalis //or/j)fs Walker; 

 compare note(--') Catskill, N. Y.; Massachusetts; White Mts , N. H. 

 Eristalis coadtts Wiedemann , Auss. Zw. II , 165 (without locality). 

 Merodon Balanus Walker, List, etc. Ill, 599. — New York. 

 Bautias Walker, List, etc. Ill, 600 (3Ierodon). — Georgia. ('^»). 

 bipartita Walker, List, etc. Ill, 599 (Merodon). — Georgia. 



Merodon. 



Meigen, Illiger's Magaz. II; 1803. 



No american species are as yet recorded. The european Merodon 

 narcissi has been occasionally introduced to the United States in 

 dutch bulbs and the fly reaied from them by Mr. F. G. Sanborn 

 (see Packard's Guide, 399). 

 For Merodon Bautias, Balanus, bipaiiitus Walker, see Mallota. 



PolydoMta. 



Macquart, Dipt. Exot. 4^ Suppl. 144; 1849. 



*curvipes Wiedemann, Auss. Zw. II, 149, 3 (Merodon). — Northern 

 States, and British Possessions; the same, or a similar species 

 in California and Colorado ; see 0. Sacken, Western Dipt., 338. 



Pohjdonta hicolor Macquart, Dipt. Exot. 4^ Suppl. 144, 1; Tab. 

 XIII, f. 6 (male). 



Helophilus albiceps Macquart, Dipt. Exot. ler Suppl. 132, 9; Tab 

 XI, f. 7 (female). 



Merodon morosus Walker, List, etc. Ill, 599 (female). 



