AMERICAN DIPTERA. 45 



39. Voliicella obesa Fain-. 



Jamaica (Bowrey, CkllJ. Found at Kingston. Sixteen speci- 

 mens, seven males and nine females. Length very constant, 10-11 

 mm. Antennae vary from light brown to dark brown ; arista is not 

 black at tip, and I would not say it was " thickly plumose" for a 

 Volueella. Front of female shining green, narrowed posteriorly. 

 Eyes very short pilose ; hind metatarsi same in both sexes, thickened, 

 and as long as remaining joints together. Wings flavous on anterior 

 portions rather than brownish ; the two clouded spots are very dis- 

 tinct and dark brown in nine of .the specimens, but faded in the 

 other seven, in five or six being flavous. 



Recorded from Jamaica by J. J. Bowrey (article on insects. 

 Handbook of Jamaica, for 1881, p. 120). Specimens in coll. C. B. 

 Taylor. 



40. Volueella palleii!^ Wd. . 



Bath, Jamaica. One male in Mr. C. B. Taylor's coll. Diflers 

 from Williston's description of V. i^expunctata Lw. as follows : D(jr- 

 sum of thorax blackish with yellowish pubescence, the sides and 

 prescutellar parallelogram yellowish like the scutellum. Third seg- 

 ment without a blackish spot in middle. Eecoi'ded in MSS. by C. 

 W. Johnson from Port Antonio ; one specimen. 



41. Volueella satur O. Sack. 



Fort Collins, Colorado ( Gillette \ One male. It agrees in all 

 particulars with Williston's description, except that the yellow por- 

 tion of fourth segment has a decided reddish brown tinge; tarsi 

 light reddish, all except the tips. 



42. Volueella tiiodoniis Towns. 



El Torte, Ba-ja Cal. (Cal. Acad. Sci.). Two males; for descrii:)tion 

 see Proc. Cal. Acad. Sci., 1894. 



43. Volueella toltec n. sp. l_ . 



A male from Guanajuato, Mex. (A. Duges), diflfers appreciably 

 from V. inops. The diflferences are as follows : Length 9.5 mm. ; 

 eyes contiguous, frontal triangle only black at base of antennje ; 

 fourth abdominal segment narrowly yellowish on antei'ior border ; 

 black border of second segment more prolonged laterally, not reach- 

 ing the edge of abdomen however. Scutellum with a blackish reflec- 

 tion basally in oblique lights. AVings slightly flavous antero-basally, 



TRANS. AM. ENT. SOC. XXII. MARCH, 1895. 



