INJURIOUS AND BENEFICIAL INSECTS OP CALIFORNIA. 



35 



Food Plants. — The katydids feed upon various plants and have 

 caused noticeable damage to the fruit of the orange. 



Fig. 30. — Orange showing the work of katydids. Natural size. 

 (Author's illustration, Mo. Bui. Cal. Hort. Com.) 



Control and Natural Enemy.— Due to the small amount of damage 

 done, control measures are unnecessary, from an economic viewpoint. 

 A small egg-parasite, Eupelmus mirabilis (Walsh) does great execution 

 in destroying the eggs and serves to hold the insect in almost complete 

 control. 



THE CALIFORNIA KATYDID 



Scudderia furcifera Scudder 

 (Fig. 31) 



Description.— The adults are uniformly light green with the pos- 

 terior half of the abdomen yellowish. The front tibiae are unarmed. The 

 hind - wings are | inch 

 longer than the front and 

 the hind femora are about 

 half as long as the wings. 

 The length including wings 

 is from 2 to 2^ inches. 



The eggs are oval, flat, 

 white or grayish brown and 

 laid in rows overlapping 

 like shingles. They may be 

 laid in a single row around 

 the edges of the leaves or 



On the branches Or in doll- Fig. 31.— The California katydid, Scudderia 



ble rOWS on the latter much furcifera Scudd. Male, natural size. (Original) 



as those of the angular-winged katydid. The young katydids are bright 

 green and have very long legs and antenna? in proportion to the small 

 bodies. 



