1910.] NATURAL SCIENCES OF PHILADELPHIA. 619 



Isohnoptera couloniana Saussure.s 



A series of eighteen male and twenty female adult individuals from 

 North Carolina have been examined. The Raleigh series contains 

 sixteen males and twenty females, taken from under bark of dead 

 pines or bred on dates ranging from June 2 to July 1, 1904, while two- 

 adult males and an immature female were taken at Sulphur Springs, 

 June 5, 1904, at night attracted to light. 



The series before us presents a perceptible amount of variation 

 in size and color, the size extremes of both sexes being as follows 

 (all the measured specimens being from Raleigh) : 



Length of body... 20.5 mm., 21.5 mm., 18.5 mm., 22.5 mm. 



Length of pronotum 4.S " 5 " 4.8 " G 



Greatest width of 



pronotum 6 " 6.5 " 7.2 " 8.2 " 



Length of tegmem. 9.2 " 21.8 " 7.5 " 8 



The more usual type of coloration is that described by Blatchley 

 and found in the type of Scudder's synonymous hyalina, the disk of 

 the male pronotum being pale reddish ochraceous, while the other 

 extreme, to which belonged the type of couloniana, has the same area 

 more or less infuscate, particularly cephalad. The depth of this 

 infuscation is very variable and it is found clearly denned in but five 

 of the males examined, although suggested by points and lines in 

 several others. In the female much the same thing occurs as in the 

 male, but less clearly defined in most of the cases. 



Ischnoptera uhleriana (Saussure). 



The series of this species before us is quite extensive, consisting of 

 ninety-nine males and six females, ninety-two males having been 

 taken at Sulphur Springs on dates between May 8 and June 13, 1904, 

 and in April, 1906, the remainder of the series being from Raleigh, 

 taken June 1 to July 1, 1904. The memoranda with the latter speci- 

 mens show they were taken from under the bark of dead trees, attracted 

 to light in houses or bred. The Sulphur Springs specimens were all 

 taken attracted to light. 



The coloration of the present series varies but little and then only 

 in the intensification or lightening of the general color. In but one 

 male is there a darker discal area on the pronotum, and in that case 

 the intensification is not strongly marked and the form of the supra- 



B C. f. these Proceedings, 1910. p. 433. 

 "Orth. Indiana, p. 183. 



