

A LIST OF THE INSECTS AFFECTING SUGAR- 

 CANE IN BRITISH GUIANA. 



By Harold W. B. Moore. 



LEPIDOPTERA. 



1. Castnia licus, Fabr. 



Common name : The large or giant moth-borer. 



Injury : The caterpillar bores or tunnels the underground portion of 

 the stools and the lower joints of the cane-stalks ; and kills the 

 " heart " of young cane. 



Natural enemies : 



Caterpillars preyed on by larva of an Elaterid beetle, Pyrophorus sp. 

 Adult moths preyed on by several birds, including the Old Witch 



(Crotophar/a ani), the Kiskadee (Pitangus sidphiiratus), and 



certain hawks. 



2. Diatrcea saccharalis, Fabr. 



3. Diatrcea canella, Hamp. 



Common name of 2 and 3 : — The small moth- borer. 



Injury : The caterpillars bore the young cane, thus killing the heart ; 

 also bore or "ring " the stalks of older cane. Their attack greatly 

 reduces the purity of the juice. 



Natural enemies : 



Eggs parasitized by Trichogramma minutum, Kiley, and by 

 Prophanurus alecto., Cwfd., n. sp. 



Eggs, both parasitized and unparasitized, destroyed by an undeter- 

 mined species of mite (Acarid), and two undetermined species of 

 ants. 



Caterpillars parasitized by the Braconids Iphiaulax medianus, 

 Cam., Iphiaulaoc, sp., Cremnops parvifasciatus, Cam., Crem- 

 nops sp., by the Ichneuinonid Mesostenoideus sp. ; by the 

 Chalcidid Heptasmicra curvilineata, Cam. ; and by an undeter- 

 mined Dexiid fly. 



Caterpillars preyed on by larva of a Carabid beetle, and, if 

 wandering, by a big black ant (undetermined^ known as the 

 " kop-kop," and by Attid spiders ; also by the larva of an 

 undetermined Elaterid beetle, by the Histerid beetle Lioderma 

 4-dentatum, and by the larva of a Stratiomyiid fly. 



Caterpillar and pupa attacked by a fungus, probably Gordyceps 

 barheri, Giard. 



