SCENOP1NIDAE. 97 



crassicomis Bellardi, Saggio, etc. II, 88; Tab. II, f. 16. - - Mexico. 

 argeiitata Bellardi, Saggio, etc. II, 89. - - Mexico. 



Observation. Mr. Walker's Therevae: 



conspicua Walker, List, etc. I, 223. Nova Scotia. 

 germnna Walker, List, etc. I, 222. Florida. 

 nervosa Walker, List, etc. I, 223. Georgia, ("o). 

 senex Walker, List, etc. I, 224. Nova Scotia. 

 raria Walker, List, etc. I, 221. Florida. 

 vicina Walker, List, etc. I, 222. Nova Scotia. 

 Thrrtfa i/liKjiata (Harris) Walker is Stichopogon trifasciatiis (Say). 

 These species are represented in the Brit. Mus. by a single specimen each, 

 except T. germana, of which there are two. Most of them will coincide I think 

 with Say's and Loew's species; the others will hardly be recognizable from Mr. 

 Walker's descriptions. 



Xostomyza. 



Wiedemann, JNova Dipt. Genera, 1820. 

 *l>laniceps Loew, Centur. X, 38. California. 



Observation. The genera Bnn/phora Loew, Stett. Ent. Z. 

 1844 p. 123; Tab. II, f. 15, and Cionopliom Egger, Verb. Zool. 

 Bot. Ver. 1854; Tab. I, f. 1, 2 are evidently related to Xesto- 

 myza, although Schiner has, perhaps prematurely, united them with 

 it. The antennae of Baryplioru, as figured by Loew, are remar- 

 kably like those of Tabufla, but IOOK very different from the 

 figure of the antennae of Cionophora. 



Tabuda. 



Walker, Dipt. Saund., 197; 185056. 



*fulvipps Walker, Dipt. Saund., 197; Tab. VI, f. 4. - New Jersey 

 (Evett, Proc Eat. Soc Phil. I, 217); (Walker gives no locality); 

 Georgia (coll. v. Iloeder). 



FAMILY SCENOPINIDAE. 



Sceiiopiiius. 



Latreille, Hist. Nat. des Cr. et des Ins. XIV; 1804. ( m ). 



* Iwlbosus 0. Sacken, Western Dipt., 275. - - Missouri. 

 *fenestralis Linne, Meigen, etc. - - Europe and North America. 



Scenopiwus pdttipes Say, J. Acad. Phil. Ill, 100; Compl. Wr. II, 

 86; Wiedemann, Auss. Zw. II, 2.J3 [Loew, in Sillim. Journ. N. 

 S. XXXVII, 318]. 



* laevitrons Meigen, Loew, Verb. Zool. Bot. Ver. 1857. - - Europe and 



North America. [The american specimens were identified by Loew; 

 compare Sillim. Journ. 1. c.J 



*nubiliped Say, J. Acad. Phil. VI, 170; Compl. Wr. II, 362. Indiana 

 (Say); Cuba; Florida [Loew, in litt.]. 



* albidipennls Loew, Centur. VIII, 53. Cuba, 



10 



