90 



Psyche 



[August 



When cleared of the body fluids the chitin is found to be marked 

 as follows: The head, thorax, antennae, cornicles and legs are 

 marked as indicated above. The abdomen becomes clearly trans- 

 parent with the exception of a row of rather large black patches on 

 each lateral margin, each patch surrounding a spiracle. The 

 Cauda, and genital plates are likewise dusky. In some specimens 

 one or two narrow dusky bands are present caudad of the cornicles. 



Apterous Vivipara. 



The apterous viviparous forms occur upon the sedges during 

 most of the year. They produce large numbers of young, some of 

 which become alate and others continue the apterous lines through- 

 out the summer. 



Fifth insiar (adult). General color dark greenish black, some 

 specimens dull while others are glossy. Antennae, eyes and corni- 

 cles black. Distal extremities of the femora and tibiae and the 

 tarsi black, remainder of the legs yellowish. When mounted in 

 balsam the abdomen appears greenish in color, and when cleared 

 the abdomen and thorax are transparent with the exception of the 

 Cauda, anal and genital plates and small dots along the sides of 

 the abdomen. Measurements of the appendages are given in 

 Table II. 



TABLE II. 



MEASUREMENTS OF ANTENNA AND CORNICLES OF 

 APTEROUS VIVIPARA. 



