116 PROCEEDINGS OF THE ACADEMY OF [April, 



of the southeastern States as I. pensylvanica incequalis is in the 

 central States. The difference is, however, that positive inter- 

 gradation is known to exist between pensylvanica and p. incequalis, 

 while divisa and pensylvanica do not intergrade as far as known, 

 both occurring in typical condition at localities where the ranges 

 meet. The northern and western limit of the known range of divisa 

 in the southeastern States can be represented by a line extending from 

 Anglesea, Cape May County, New Jersey, to Plummer's Island, Mary- 

 land, thence to Augusta and Albany, Georgia, and finally to Rives in 

 northwestern Tennessee. West of the Mississippi we know nothing 

 of the species beyond the North Mexico record of Saussure and 

 Zehntner. Apparently this form trespasses but little into the Pied- 

 mont region of the southeastern States and is a distinctly coastal type. 



The tegminal characters of the female of this species, previously 

 described by us, are typically represented in all the adult material, 

 although a few specimens have the tegminal apices more rounded 

 than in others. In all, however, the general form of the tegmina is 

 sublanceolate, and the three to five distal segments of the abdomen 

 are always exposed. The pronotal disk varies considerably in depth 

 of coloration in the Petersburg series, being hardly at all infuscate 

 in some specimens and again as solidly so as in pensylvanica in 

 others. The division of the disk color is more clearly marked in 

 some of the young than in the adults, and is obsolete in a large 

 proportion of the specimens. All of the adult specimens are within 

 the measurement extremes previously given by us. 8 



All of the above series were taken from under signs, on long-leaf 

 pine (Albany), short-leaf pine and sweet gum (Augusta) and red 

 oak and short-leaf pine (Petersburg) . At the latter locality immature 

 individuals were about as plentiful as adults; only one adult was 

 found on pine, the species, at that place at least, preferring the 

 red oak. 



Ischnoptera couloniana Saussure. 



North Carolina. South Carolina. 



Charlotte, VII, 27, 1913, (R. & H.), Spartanburg, VIII, 6. 1913, (H.), 2 9 . 



19. Columbia, VII, 28, 1913, (R. & H.), 



Goldsboro, VII, 25, 1913, (R. & H.), 1 9 . 



19,ljuv. Florence, IX, 6, 1911, (R. & H.), 



Winter Park, IX, 7, 1911, (R. & H.), 1 juv. 



1 juv. 

 Lake Waccamaw, IX, 8, 1911, (R. & 



H.), 9 juv. 



8 Proc. Acad. Nat. Sci. Phila., 1910, p. 432, (1910). 



