530 Mr. R. C. L. Perkins on Hawaiian Ophioninae. 



5. (2) Abdomen very elongate, and slender in lateral aspect, the 



5th segment, so viewed, being strongly elongate. 



(Cheeks very short, the eyes nearly reaching the 

 mandibles, the ocelli large, the rims of the outer ones 

 almost touching the eyes, radius conspicuously thick- 

 ened basally, with distinct glabrous area beneath, trans- 

 verse median and basal nervures usually meeting in 

 front wings, sometimes a little separated ; propodeum 

 declivous from the front margin or almost so, widely 

 flattened or slightly impressed almost from base to 

 apex, and with no transverse carina.) 



Ereviolyloides, g. nov. 



6. (1) Transverse median nervure in the hind-wings angulated 



near to or above or not greatly below the middle, never 

 at I of the distance from its upper extremity to the lower. 



7. (10) Ocelli large or moderately large, the lateral ones never more 



distant from the nearest point of the eye-margins than 

 the length of the ocellar diameter ; cheeks between the 

 eyes and mandibles very short inwardly. 



8. (9) $ of normal Ophionine shape and structure, the ovipositor 



and sheaths not exserted behind the abdomen ; hind 

 part of the thorax in dorsal aspect with the sides only 

 slightly roimded Athyreodon, Ashm. 



9. (8) $ with the ovipositor and sheaths extended far behind the 



tip of the abdomen ; hind part of the thorax strongly 

 rounded at the sides owing to the convexity of the meta- 

 pleura Pycnophion, Ashm. 



10. (7) Ocelli placed medially on tiie vertex, the outer ones far 



removed from the eye-margins; cheeks extremely long, 

 the eyes far removed from the mandibular articulation ; 

 abdomen unusually short and wide. 



Banchogastra, Ashm. 



Ashmead characterised the endemic Hawaiian genera in 

 his " Classification of the Ichneumon Fhes," but his table 

 of genera (pp. 86, 87) is very faulty, though the genera are 

 perfectly valid. His figures in the " Fauna Hawaiiensis " do 

 not always agree with his descriptions and are certainly 

 incorrect in details. 



Excluding Pleuroneurophion, he divides the genera 

 according to whether the " transverse median nervure in 

 hind- wings is broken above the middle " or "at or above 

 the middle," the " above " in the latter case being clearly 

 a lapsus for below. 



