cricket," the insect in question is without doubt this species. Harris 
in 1862 (27) mentioned this species under the name Gryllotalpa 
didactyla, as destructive to sugar cane in the West Indies. 
Gundlach in 1886 (25) was the first writer to record the changa 
from Porto Rico. He states that it is not common in Cuba, but does 
considerable damage in Porto Rico, at least in the vicinity of Maya- 
guez. In 1887 the same writer (26) notes the flight of adults to 
Jights and again mentions the insect as being especially abundant in 
Mayaguez. Brunner von Wattenwyl and Redtenbacher in 1892 (7) 
mention collecting this species in St. Vincent during January, and 
give the following localities as habitats of the insect : Haiti, Panama, 
Peru, Uruguay, and Argentina. In 1895 Fernando Lopez Tuero, 
of the Spanish Agronomic Station at Rio Piedras, Porto Rico, gave 
a popular account of the changa as a pest of sugar cane (31) with 
notes on its life history. 
The first extensive account of the changa was published in 1902 
by Barrett (2), entomologist and botanist of the Porto Rico Agri- 
cultural Experiment Station. Like most of the previous writers, 
he used the specific name didactylus. He outlined the habits of the 
insect and gave recommendations for its control. According to him 
the changa has been very troublesome in Porto Rico only since the 
hurricane of 1876, which is supposed to have destroyed most of the in- 
sect's bird enemies. After 1885 the insect seemed to decrease slightly 
in numbers until the hurricane of August, 1899. It is the common 
belief in Porto Rico that the insect was introduced into the island 
about 1850 in a load of guano brought to Mayaguez. The first estate 
in Porto Rico to abandon cane culture because of the changa's rav- 
ages is said to have been the one in Mayaguez upon which the experi- 
ment station is now located. At present the insect seems to be more 
numerous and troublesome in the eastern part of the island. 
The changa has become well established in the southeastern United 
States. In 1912 Worsham and Reed (54) published an account of 
the mole cricket's habits and development and the damage done by 
it in the coastal counties of Georgia, where it has been known since 
1899 (11). Prof. J. R. Watson, of Gainesville, Fla., writes 1 that 
flourishing colonies of this insect have become established in the 
vicinity of Tampa and Miami, and he suspects that the insect 
is generally distributed throughout Florida, although there are only 
three authentic records of it from the State, all of them from the 
southern part. According to Dr. W. E. Hinds, 2 the species is prob- 
ably present generally throughout Alabama, and complaints of its 
1 Correspondence Sept. 29 and Nov. 16, 1916. 
2 Correspondence Oct. 25, 1916. 
