THE SUGAR-CANE MOTH BORER. 
41 
practice is probably to blame for their scarcity during the following 
spring and early summer. To avoid the destruction of these bene- 
ficial parasites experiments have been conducted for the last five 
years in conserving the cane trash. The trash may be raked to the 
headlands or to waste land, or it may be plowed under. This sub- 
ject is thoroughly discussed under the heading " Not burning cane 
trash," page 55. 
MOTH-BORER ENEMIES IN FOREIGN COUNTRIES. 
The minute egg parasite TricJw gramma minutum occurs almost 
universally, having been recorded from Cuba, Porto Rico, Trinidad, 
British Guiana, Barbados, and elsewhere, as noted below. Another 
egg parasite, Telenomus sp., is recorded from British Guiana by 
Bodkin (17), who also records a 
braconid, a tachinid fly, 1 and a 
large chalcidid, Heptasmicra cur- 
mlineata Cameron. Two species of 
ants are mentioned by Bodkin as 
destroying the eggs. Predators in 
British Guiana are an elaterid and 
the histerid Lioderma quadriden- 
tatum Fabricius. From the same 
country Moore (104) lists Iphiau- 
lax medianus Cameron, Iphiaulax 
sp., Cremnops parvifasciatus Cam- 
eron, and Cremnops sp. (allbraco- 
nids), and the ichneumonid Meso- 
stenoideus sp. From Trinidad 
Urich (164) records a sarcophagid 
fly 2 (probably parasitic) and a hy- 
menopteron, Cyanopterus sp. The tachinid EuzeniMiopsis diatraeae 
Townsend was found in Cuba by the junior author, as well as a species 
of Apanteles. TacMnophyto sp. 1 is recorded by Van Dine (170) 
from Porto Rico. Rosenfeld and Barber (137) record an intestinal 
worm, the braconid Microdus sp., and a dipteron 2 from Argentina. 
Van der Goot (58) states that in Java Diatraea is parasitized by Pha- 
nurus heneficiens Zehntner, Trichogramma minutum Riley, T. nanum 
Zehntner, T. australicum Girault, in the egg stage, and by a braconid 
and a tachinid 3 in the larva stage. He also records two species of ants 
attacking the pupse and the eggs, and a small carabid feeding on the 
larva. DeCharmoy (51) notes Telenomus sip., (Qphion) Stauropodoc- 
tonus mauritii Saussure, Trichogramma australicum Girault, Ophion 
1 These flies are thought by Dr. C. H. T. Townsend to be probably his Euzendlliopsis 
diatraeae. 
2 According to Dr. Townsend Rosenfeld and Barber's " dipteron," and probably Urich's 
" sarcophagid fly," are Oxysarcodexia peltata Aldrich. 
3 According to Dr. Townsend this is Diatraeophaga striatalis Townsend. 
Fig. 11. — Trichogramma minutum, an egg 
parasite of the sugar-cane moth borer. 
Highly magnified. (Riley.) 
