INSECT ENEMIES OF EASTERN FORESTS 103 
The mole crickets can be controlled by scattering a poisoned bait 
similar to the grasshopper baits. Cottonseed meal substituted for the 
bran and sawdust in the grasshopper formula (p. 33) is reported 
to make the formula more effective against mole crickets. 
The northern mole cricket (Gryllotalpa hexadactyla Perty) is the 
most common form and is found from Canada to the southern part of 
mouth America. It in- 
habits the moist mud and 
sand along the margins of 
the smaller streams and 
ponds and usually causes 
no damage. 
Gryllotalpa gryllotalpa 
(L.), the European mole 
cricket, has become estab- 
lished at a few points 
along the coast in the East 
and may become a serious 
pest of nurseries. It is 
large, robust, approxi- 
mately 114 inches long, 
reddish or brownish yel- 
low tinged with fuscus 
above and pale brownish 
yellow beneath. The front 
legs terminate in four 
strong bladelike teeth 
called dactyls. 
The mole crickets be- 
longing to the genus Scap- 
teriscus can be distin- 
euished from Gryllotalpa 
by the presence of two 
dactyls imstead of four: 
otherwise they are quite 
similar in appearance. 
The changa (S. vicinus 
Scudd.) (fig. 17) is found 
in the coastal plain in the 
Southeastern States, as 
well as in the West Indies 
and parts of South Amer- 
ica. It attacks mainly . 
truck crops, pastures, and  pygure 17—The changa (Scapteriscus vicinus 
lawns. This species is ap- Scudd.). 
proximately 114 inches 
long, brown above, and light brown beneath. Thomas (407) records 
one cycle annually, the eggs being deposited in the burrows in the 
spring. 
Scapteriscus abbreviatus Scudd. is brownish fuscus blotched with 
yellow. It is recorded from Florida and Georgia, and from parts of 
South America. 
