156 



DEXIDAK. 



nibriTentris 'Macqn.irt, Dipt. Exot. !« Suppl. 188, 6; Tab XX, 



f. 10. — Yucatan. 

 streiiua R. Desvoidy, Myod. 315, 2 (Zclia). — San Domingo. 

 Tlioinae Wiedemann, Auss. Zw. II, 379. — St. Thomas (Wied.); 



Jamaica (Walker, List, IV, 840). 



Sericocera. 



Macquart, Hist, Nat. Dipt. II, 165; 1835. 



pictipennis Macquart, Dipt. Exot. II, 3, 67, 1; Tab. VII, f. 5. — 

 Philadelphia. 



Observation. This genus of Macquart's seems to have con- 

 tained a mixture of heterogeneous forms, which Schiner distributed 

 among the genera Olirieria. I'drhia (Section Tachinina) and 3Iivt]in, 

 Thdaira and BMcniia (Section Dexina). S. jiidipennis Macquart, 

 judging from the figure, belongs to the Dexidae. 



Molnsiopliora. 



Meigen, in Illiger's Magaz. II; 1803. 



? (liabroticae Shimcr, Amer. Naturalist, V, 219; f. 60 (the author 

 calls it 3f('Iaiioiiphora, perhaps Melanophora?). — Illinois 'para- 

 sitic on Didbrotica riU(d(i). 

 distincta R. Desvoidy, Myod. 273 (Lm7«cw?//o). — Europe i Philadelphia. 

 nigripes R. Desvoidy, Myod. 58 (Mnr^hnmia). — North America. 

 *roralis Linne etc.; Meigen, System. Bpschr. IV, 284. — Europe and 

 North America (see Loew, Sillim. Journ. Vol. XXXVII, p. 318). 



Illiseria. 



R. Desvoidy, .Myod. 273; 1830. 



Aclops Walker, List, etc. IV, 796. — Georgia. 

 Corythus Walker, List, etc. IV, 797. — Georgia. 

 Helyniiis Walker, List, etc. IV, 795. — Maine. 



Observation. Judging from the descriptions, the insects, which 

 Mr. Walker places in this genus, have very little in common, 

 and belong to different genera. 



Tliercsia. 



R. Desvoidy, Myod 325; 1830. 

 tandrec R. Desvoidy, Myod 326. — Carolina. 



Mieroplithalma. 



Macquart, Dipt. Exot. II, 3, 84; 1848. 

 nigra Macquart, Dipt. Exot. II, 3, 85, 1; Tab. X, f. 2. — North 

 America. 



Vlcgaprosopns. 



Macquart, Dipt. Exot. II, 3, 83; 1843. 



rufiventris Macquart, Dipt Exot. II, 3, 84, 1; Tab. X, f. 1. — Mexico. 



