PACKARD] INSECTS AS MIMICS. 267 



Some species remain in the grass througliout their lives, but 

 most of the Katydids and others which produce a loud cry 

 reside in the trees. Here it is difficult to detect them, their 

 green hues matching so well the hues of the leaves forming 

 their covert. Moreover the fore wings are inclined to be 

 broad and oval, as seen in those of the Katydid (Fig. 20G). 

 It will be noticed in this insect how closely the veins resem- 

 ble those of the leaves. There are, in the Museum of the 

 Peabody Academy of Science, a' number of Brazilian species 



Fig. 206. 



Katydid. 



allied to the Katydid which have very broad, thick fore 

 wings, some oval in shape like orange or lemon leaves, 

 others with jagged outlines, somewhat as in the holly leaf. 

 Others are of the color of a dead leaf. Such is the Cyrto- 

 phyllus perspicillatus, which bears a close resemblance to a 

 withered leaf. There is in Brazil a grasshopper of this fam- 

 ily, which represents the East Indian Megalodon figured by 

 Wallace on page 5.b0 of " The Malay Archipelago." 



There are some insects which resemble anything but thera- 



11 



