Diptera of St. Vincent {West Indiex). 347 



VOLUCELLA. 



1. Volucella obesa. 



Syrjy^tis ohesns, Fabricius, Syst. Ent., 763. (For 

 synonymy, see Williston, Biol. Centr.-Amer. Dipt., 

 iii., 50.) 

 Six typical specimens of this cosmopolitan insect are 

 in tlie collection. 



Volucella, sp. n. ? 



Three specimens belonging to the difficult group of 

 fallens, vesiculosa, etc. I cannot find any description 

 that will apf)ly well to the specimens. They differ from 

 V. fallens, Wied., in the presence of a median and two 

 lateral facial stripes, in the hair of the mesonotum being 

 for the Taost part black, and in the presence of a large 

 black spot on the scntellum. From both V. vaga, Wied., 

 and V. h.yaloftera, Giglio-Tos, the facial stripe will dis- 

 tinguish the species, as well as other characters. 



Baccha. 



Fabricius, Syst. Antl., 199, 1805. 



1. Baccha clavata. 



Syrfhus clavatus, Fabricius, Ent. Syst., iv., 296, 



Baccha clavata, Fabricius, Syst. Antl. 200; Wiedemann, 

 Auss. Zw. Ins., ii., 94; Schiner, Nov. Exped., 341 ; 

 Wulp, Tijdschr., v., Ent., xxvi., 10; Roeder, Stett. 

 Eut. Zeit. 1885, 342 ; Williston, Trans. Amer. 

 Ent. Soc, XV., 270; Biol. Centr.-Amer. Dipt., iii., 

 33; Giglio-Tos, Ditt. del Messic, ii., 57 ; Austen, 

 Proc. Zool. Soc. Lond., 1893, 159; Hunter, Can. 

 Ent., xxviii, 96. 



Baccha habista. Walker, List, iii., 549 ; Williston, 

 Synopsis N. A. Syrph. 117, pi. iv., fig. 9 (Willis- 

 ton, Austen). 



Baccha varia. Walker, List., iii., 549 (Austen). 



Paraqns scutellatus. Walker, Trans. Linn. Soc. Lond., 

 xvii., 342 (Austen). 



Baccha facialis, Thom&on, Eugenics Eesa, 504 (Willis- 

 ton). 



Sfoziqaster bacchoides, Bigot, Ann. Soc. Ent. Fr., 1883, 

 326 (Williston). 



