FAMILY VII.— GRVLLIDyE. 



209 



ing insects they prefer in reality 

 other insects, and especially the 

 injurious plant- lice. They would, 

 consequent!}', belong to the ben- 

 eficial insects, if they did not 

 possess the bad habit of selecting 

 the cane of useful plants for the 

 purpose of inserting eggs into 

 them. The female, by means of 

 her strong ovipositor, thrusts 

 her eggs into the pith of the cane 

 selected, and as a large number 

 of eggs are thus laid side by side, 

 as shown in the illustration (Fig. 

 177), the cane is usually Ivilled 

 beyond this point, and if the in- 

 sects are at all numerous great 

 injury can be caused. Burning 

 the infected cane early in spring 



Fig. 17 7.— Eggs of CEcanthusspec 

 a, twig showing punctures; b, twig 

 split open to show eggs; c, a single . 

 egg; d, cap of egg, enlarged. After is a g-ood remed\'. 

 Rilev. * -^ 



CEcanthtis niveas DeGeer. 



THE SNOWY TREE-CRICKET. 



Wholly pale, ivory-white, tinged with delicate green, with 

 two slightly elevated blackdotson the underside of each an- 

 tenna, one on the first and one on thesecond joint (Fig. 178). 

 Top of head and first joint of antenna usu- 

 alh^ pale yellowish-brown. Tip of ovipos- 

 itor black. Wing-covers almost twice as 

 long as the abdomen ; hind wings as long 

 as the wing-covers. The maxillary palpi 

 are longer in this than in an}' other species 

 of the genus, and the wing-covers of the male broader in 

 proportion to their length than in any other except latipen- 

 nis. Average length, from head to end of wings, 16 mm. ; 



Fig. \-S. — CEcnn- 

 thus nireus: two ba- 

 sal joints ofantennre. 

 Original 



