456 PROCEEDINGS OF THE NATIONAL MUSEUM vol. no 



3. Clypeolabral region with ten setae arranged in a line and two groups each of 



two sensilla beneath this line Cratichneumon 



Setae and sensilla arranged in two groups on clypeolabrum and not in a 

 line 4 



4. Clypeolabral setae grouped as shown (fig. 35a) on two lightly sclerotized plates 



shaped as shown (fig. 35a) Ichneumon 



Setae and sensilla not grouped as shown (fig. 35a) on plates shaped as shown 

 (fig. 35a) 5 



5. Raised areas on clypeolabrum containing sensilla narrow and straight . Aoplus 

 Raised areas on clypeolabrum containing setae or sensilla more broad and 



not straight 6 



6. Each raised area containing sensilla on clypeolabrum curved dorsally. 



Amblyteles 



Each raised area containing setae or sensilla on clypeolabrum not curved 



dorsally 7 



7. Each raised area on clypeolabrum with a lightly sclerotized dorsal bar and 



containing six sensilla Pseudamblyteles 



Each raised area on clypeolabrum without sclerotized dorsal bar and con- 

 taining seven setae Chasmias 



The following have been examined: Melanichneumon hrevicinctor 

 (Say) (fig. 32a), M. ruhicundus (Cresson), Cratichneumon duplicatus 

 (Say), C. unifasciatorius (Say) (fig. 32b), Aoplus velox (Cresson) 

 (fig. 33a), Chasmias scelestus (Cresson) (fig. 33b), Pseudamblyteles 

 animosus rubellus (Cresson), P. nuncius (Cresson) (fig. 34a), P. 

 subfuscus (Cresson), Amblyteles inconstans (Cresson) (fig. 34b), A. 

 subrufus (Cresson), Ichneumon ambulatorius Fabricius (fig. 35a), /. 

 laetus Brulle, /. rujiventrus incertus Cresson, and Carinodes havanensis 

 (Cameron) (fig. 35b). 



The following are figmi-ed in the literature: Melanichneumon rubi- 

 cundus (Cresson) (Wishart, 1949), Aoplus pictus (Gravenhorst) 

 (Beu-ne, 1941), Amblyteles armatorius (Foerster) (Beirne, 1941), 

 Ichneumon suspiciosus Wesmael (Cameron, 1950, 1951). 



Tribe Protickneumonini 



Figure 36a 



Coelichneumon pepticus (Cresson) (fig. 36a) and Protichneumon sp. 

 (GCV) were examined. 



There are no clear characters differentiating this tribe from the 

 Ichneumonini. The head parts are heavily sclerotized and there is a 

 large sclerotized area of the cranium lateral to each pleurostoma. In 

 Coelichneumon the ocular line (shown by the antenna in fig. 36a) is 

 well sclerotized and conspicuous. It is also conspicuous in Protich- 

 neumon. The specimen of Protichneumon was not figured since the 

 labral setae and sensilla were not clearly visible on the preparation; 

 however, their arrangement appeared to be similar to those of Coelich- 

 neumon. 



