36 C. H. TYLER TOAVNSEXD. 



9. Clirysotoxiiin venfrieosuin Loew. 



Sail Francisco ^Mountain, Arizona, July 15. One male and two 

 females. These I refer liere rather than to integre, because of the 

 coloring of the legs, though in two of the specimens ( S ^ ) the sec- 

 ond and third bands are entire, and in one of these (?) the fourth 

 band also. Thus two of them have an invei'ted Y-shaped marking 

 on fifth segment, and the other a V-shaped. The scutellum is black 

 across the disc. The fascise are narrower than in pubeseens and 

 derivatmn, thus showing more black on second and third segments. 

 Length 10-11 mm. The pile at base of abdomen is yellowish, not 

 black, thus agreeing with C. arcuatum, of Europe, according to 

 Loew. There is no yellow on hind margin of second segment, or 

 only the slightest trace in one ( 9 ). They otherwise agree with 

 Loew's description. 



10. Paragiis bicolor Fabr. 



Las Cruces, N. Mex., August 19; one female. Length 5 mm. 

 Thorax, scutellum, and basal angles of abdomen have a slight green- 

 ish lustre, the scutellum margined posteriorly with yellowish white. 

 Abdomen wholly pale red, except these lateral basal angles dark 

 greenish. The very short white pile is not only apparent on sides 

 and on fifth segment, but also extends across second, third and fourth 

 segments in an anterior band, the posterior half (more on fourth) 

 showing the band of very short black pile. Legs wholly pale red- 

 dish, except tips of femora and bases of tibiae, light yellow. 



11. <'hrj'sogaslei* iiititla Wied. 



Dixie Landing, Ya., and Washington, D. C. jMay 28 and 27, 

 tw^o males ; October 11, one female. The female and one male agree 

 well with descri})tions. The other male has the fourth vein termi- 

 nating nearly opposite the end of second, and the frontal triangle is 

 more finely rugose, yet I would prefer to consider it the same species. 



12. Clirysogaster pulcliella Willist. 



Constantine, Mich., September 1, one female. Length 5.5 mm. 

 Antennte longer than face, second joint fully half as long as third. 

 Front and face with a coppery reflection ; otherwise agrees well with 

 description. 



13. Syrphii.«s u. sp. ? 



Fort Collins, Colorado (Gillette ) ; one female. I would refer it 

 to S. paiixillus Willist. but for the great disparity in size. That 



