44 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



O. stollii Kirby. 



Trans. Linn. Soc. Lond., xiii, 16, 1819. 



Colored much as in degeeri but a much smaller species. I have 

 taken it only on oaks. It is found from New York southward and 

 should be taken in Connecticut. 

 O. schellenbergii Kirby. 



Trans. Linn. Soc. Lond., xiii, 18, 1819. 



A small pale species with the same distribution as the preceding 

 and must be found in Connecticut. 

 O. abbotii Kirby. 



Trans. Linn. Soc. Lond., xiii, 17, 1819. 



This small dotted form is apparently rare in the North. 



Guilford, 13 July, 1920 (B. H. W.). 

 O. francilloni Kirby. 



Trans. Linn. Soc. Lond., xiii, 17, 1819. 



Reported from New York to Georgia and probably lives in 

 Connecticut. 

 O, kirbyii Fitch. 



Homop. N. Y. St. Cab., 46, 185 1. 



Known only from New York but probably will be taken in 

 Connecticut. 

 O. coquebertii Kirby. 



Trans. Linn. Soc. Lond., xiii, 18, 1819. 



The most abundant and the most beautiful species of the genus. 



Hamden, 14 July, 1921 (P. G.) ; Brookfield (E. L. D.). 

 O. wolfii Kirby. 



Trans. Linn. Soc. Lond., xiii, 19, 1819. 



Another common species found on hickory trees from New York 

 to Georgia and should be taken in Connecticut. 

 O. signoretii Fitch. 



Trans. N. Y. St. Agr. Soc, xvi, 394, 1856. 



Reported from New York to Texas and should be found in 

 Connecticut. 

 O. amyotii Fitch. 



Trans. N. Y. St. Agr. Soc, xvi, 394, 1856. 



Same distribution as signoretii, but not common. 



New Haven, 17 July, 1912, 28 June, 1920 (B. H. W.). 



Subfamily Delphacinae. 



Small insects readily distinguished by the presence of a large 

 movable spur at the apex of the hind tibiae. They are usually 

 abundant in low grassy meadows and about the borders of streams. 



