13. 
15. 
Body with a distinct pinkish middorsal stripe (A); plates 
at bases of body setae weakly sclerotized and concolorous 
with the body. 

China, Japan, and Manchuria, 
Host: Rice straw (borer in stems). Chilo suppressalis (Wlk.) 
Body without a pinkish middorsal stripe (A); plates at bases 
of body setae strongly sclerotized and heavily pigmented or 
weakly sclerotized and concolorous with the body ..ccccrcceee 14 

Plates at bases of body setae blackish or fuscous, 
Mexico, tropical America, end Oriental regions, 
Hests: Green corn and sugarcane (borers in ears and stalks). 
(Summer form) Diatraea spp. 
Plates at bases of body setae pale, concolorous with the body, 
Mexico, tropical America, and Oriental regions. 
Hosts: Green corm and sugarcane (borers in ears and stalks). 
(Winter form) Diatraea spp. 
Meso=- and metathorax each with a wee of plates (without setae) 
om posterior dorsal aee (A); Lgroup VII of first abdominal 
segment bisetose (B). : 
ie Seger | 
! je) | 
RQ he 
S | Vil 
Ls 
R 

Sine Mexico, Puerto Rico, Hewaii, Tahiti, end Japan. 
facts: Beens eed pigeon peas (bover in pods). 
Maruca testulalis (Geyer) 
