2!i)<; 



.served stinging it abont the head, sometimes barely escaping the 

 ]a\vs of the larva. After much effort directed against the head, 

 slu' was seen stinging it near the center of the mesosternnm 

 and in the sntnre between the mesosternnm and prosternnm 

 and worked her way along the sides of the segments to near the 

 anal extremity, apparently stinging wherever she secured a 

 response to her prodding with the end of the abdomen. She 

 then returned to the head, prodding tentatively about the 

 mouth, then made a long sustained sting in the middle of the 

 pro-mesonotal suture and another perhaps at the anterior mar- 

 gin of the first tergite laterally. At the end of this operation 

 •^he had difficulty in removing her sting and in the struggle to 

 extricate it, it was seen to be very elongate so as to penetrate 

 nearly or quite half through the larva. After this the larva 

 became quiescent and she began pinching the cuticle with her 

 mandibles in feeding. 



Another female of this species which had been placed with 

 a nearly fnll fed larva of Prosoplus in a twig, had not para- 

 Ivzed it and this larva was removed from the twig and placed 

 Avitli the Sclei'odcrmus female. After some time she "was 

 oliserved in conflict Avith it, attacking it near the middle of 

 its alidomeu. The Prosoplus larva was strong and A-igorous, 

 larger than the Neoclytarlus larva from which the material 

 from Ewa Choral Plain has been bred and its skin is appar- 

 ently tougher. The struggles, contortions, twistings and ro- 

 tations of the Prosoplus larva did not once serve to dislodge 

 her. Grasping the cuticle of the edges of the sutures, she 

 was {'oustantly endeavoring to sting, apparently without much 

 <dioice of ])osition. Occasionally she was able to deflect the 

 end of her abdomen nearly vertically to the surface and held 

 this position, the rest of her body well curved round the body 

 of the Prosoplus. It was doubtless then that she did her 

 most successful stinging. In the struggles she worked her 

 way backwai'd and forward above the body of the Prosoplus 

 and around and around, constantly stinging or attempting to 

 do so. During the latter part of the combat she seemed to 



