AMERICAN DIPTERA. Oi 



Dr. Williston has ideiititied this species from Santo Domingo (Tr. 

 Kan. Acad. Sci. x, 134). ]Macquart has recorded it from Cuba, and 

 Fabricius and Wiedniann from South America. I am able to verify 

 Walker's determination oi' it from Jamaica. 



Mr. C. W. Johnson, in litt., determines it from Port Antonio, 

 Jamaica. 



4. Clirysops inoutauiis O. S. 



Pompanoosuc, Vt. (C. M. Weed ). One female ; first two antennal 

 joints reddish yellow ; third yellowish brown, the last four aunuli 

 black. Thorax brownish, with two broad, median, grayish stripes, 

 and lateral more yellowish ones. The median pair of longitudinal 

 blackish markings on abdominal segments three and four coalesce 

 anteriorly, but not so broadly as those of second segment ; none of 

 the spots of one segment coalesce with those of any other segment. 

 Front femora blackish at base ; the middle knees, unlike the others, 

 not blackish. The cloud on fifth vein does not join the cross-band 

 of wings ; otherwise agrees well with Osten Sacken's description. 



5. Chrysops iiiger Macq. 



Dixie Landing, Va., May 25 to June 22. Three females. In all 

 three of the specimens the first basal cell is lighter than rest of 

 clouded portion, in fact it is largely subhyaline. In all other respects 

 they agree closely with Osten Sacken's description. Fourth posterior 

 cell hyaline next the intercalary vein in all. 



6. Chrysops vittatus Wied. 



Riley County, Kansas (F. Marlatt ), August ; two females. Length 

 7.5 mm. Frontal callosity yellowish, like the face ; no " vestiges of 

 yellow spots" on sixth segment. In one specimen the venter has a 

 median blackish spot on third, fourth and fifth segments, in addition 

 to the lateral stripes ; otherwise they agree well with Osten Sacken's 

 description. 



7. Silvius quadrivittatus Say. 



Smithville, So. Dakota (J. M. Aldrich ) ; four females. These do 

 not differ from southern New Mexico specimens, except that they 

 seem to be a little more yellowish pollinose, and average somewhat 

 larger. A single female from Riley County, Kansas (F. Mai-latt, 

 June), is also larger. 



8. Tlierioplectes astutus Osten Sacken (?) 



Orono, Me. (Harvey) ; one female. Differs from description as 



TRANS. AM. ENT. SOC. XXII. (8) MARCH, 1895. 



