LEPIDOPTERA. 



287 



' g * t**t*/ *-tt \llcC- 



w 



FlG. 342. Hirmatopis 

 grataria. 



The Chickweed Geometer, Hcematopis grataria (Hae- 

 mat'o-pis gra-ta'ri-a). This little moth 

 (Fig. 342) is very common in our meadows 

 and gardens during the summer and au- 

 tumn months. Its wings are reddish 

 yellow, with the fringes and two trans- 

 verse bands pink. It is found from Maine 

 to Texas. The larva feeds on the common chick-weed, 

 Stellaria media* 



Family GEOMETRID^; (Ge-o-met'ri-dae). 

 The Green Geometrids (G e-om' e-trids). 

 As a rule the members of this family are bright green in 



color. And as we have 

 but one other common 

 Geometrid (Dysptcris, p. 

 286) of this color, the 

 family may be well termed 

 the Green Geometrids. 

 vn, The distinctive structure 

 that characterizes this 

 family is the fact that 

 vein V a of the hind wings 

 arises much nearer to 

 vein V, than to vein V, 

 (Fig. 343). In this family 

 the tendency to expan- 

 sion of the humeral angle 

 of the hind wings, which 

 is exhibited by all Geo- 

 metrina, and which is cor- 

 related with the promi- 

 nent bend into this angle 

 of vein II, characteristic 



FIG. 343. Wings of Geometra iridaria. of tllJS SUper-family, IS 



* This moth is figured and mentioned here because it is one of our 



most common species, and not as a typical illustration of the Sterrhidae. Il 



VII, 



