ICHNEUMONID FINAL INSTAR LARVAE^ — SHORT 



451 



The following were examined: Anisobas sp. (CDA) (fig. 30a), 

 Listrodromus nycthemerus (Gravenhorst) (BM) (fig. 30b). 



Tribe Eurylabini 



Figure 31 



Probolus sp. (CDA) was examined. 



The absence of a sharp line of demarcation between each pleuro- 

 stoma and the sclerotized area lateral to it distinguish this ichneu- 

 monine from all others examined except Melanichneumon, which is 

 distinguished by the numerous setae on the prelabial region. 



A ^ 



I 1 



O- 1 mm 



Figure 31. — Ichneumoninae-.Eurylabini, head sclerites: Probolus sp. (antenna not visible 

 on preparation; 2, spiracle; 3, skin.) 



Tribe Ichneumonini 



Figures 32-35 



In the following key reference is made to setae and sensilla, but 

 there is no distinction between a small seta and a sensQlum. 



Larval Key 



1. Epistoma broad and lightly sclerotized Carinodes 



Epistoma narrow and well sclerotized 2 



2. Some eighteen setae present on prelabium Melanichneumon 



No more than six setae present on prelabium 3 



