3o6 



ENTOMOLOGICAL NEWS. 



[December, 



increase in the second submarginal cell ; but, when the super- 

 numerary cross-vein forming the discal cell is wanting, no 

 adventitious cross-veins are present in the second submarginal 

 cell. 



A specimen (fig. i) collected at Natrona, Pa., May 30, has 

 both discal cells open, although a slight stub on the left wing 

 indicates the position of the cross-vein. A specimen from 

 Edge Hill, Pa. (May 26), and one from Riverton, N. J. (Sept. 

 8), has only the discal cell of the left wing open. Among the 

 specimens in my collections are seven which have cross-veins 

 in the second submarginal cells, showing the following varia- 



Venation of AMALOPIS INCONSTANS (Johnson). 



tions : One specimen (fig. 3) from Philadelphia (June 8) has 

 but one cross-vein on the left wing ; while one from Riverton 

 (May 14) has one on each wing ; one example from Philadel- 

 phia (June 8) has two on the right wing and one on the left, 

 and another has two on each wing. A specimen from River- 

 ton (Sept. 8) has three on each wing, but in different posi- 

 tions ; (fig. 4 shows the left wing, on the right the veins are 

 equidistant) ; while one from Shiloh, N. J., (Sept. i) has three 

 on the left and four on the right wing. But by far the most 

 singular variation is that shown by a specimen recently (Sept. 

 25) collected at Riverton. In this example (fig. 5) the second 

 submarginal cells are closed, the left wing having three cross- 

 veins and the right wing four. 



