ICHNEUMON ID^. 229 



men oblong, narrowed posteriorly to the apex ; the node of the 

 peduncle subglobose, of the width of the metathorax, but narrower 

 than the first segment of the abdomen, which is slightly constricted ; 

 the apical segment pale ferruginous, and with a few fulvous hairs. 



Hah. Island of Oahu. 



Not rare. According to Mr. Blackburn it forms its nest under 

 stones ; workers only have been taken. 



ICHNEUMONID^. 



PIMPLA, Fabr. 



1. Pimpla laevigata. 



Female. Length 65 lines. — Head and thorax black, very smooth 

 and shining ; tip of the abdomen black, the four basal segments 

 ferruginous, the first palest. Head with a narrow line at the inner 

 orbits of the eyes below the antennae, the clypeus, and palpi white ; 

 a triangular fuscous spot on the clypeus. The legs ferruginous, 

 with the eox^, intermediate and posterior trochanters, the ai)ex of 

 the posterior tibiae and tarsi black. Wings pale fulvo-hyaline ; 

 the anterior pair with a broad dark fuscous fascia between the 

 stigma and the areolet ; the apex of all the wings fuscous, the 

 nervures ferruginous. The ovipositor black and the length of the 

 abdomen. 



Hah. Costa Eica, Cache. 



2. Pimpla coxata. 



Female. Length 5 lines. — Black and shining, the mesothorax bright 

 ferruginous ; the legs pale ferruginous, with the coxae and tro- 

 chanters white; the palpi and scaj)e of antenna; in front white ; 

 the scutellum and a spot at the sides of the metathorax ferrugi- 

 nous ; wings pale fulvo-hyaline, iridescent, the nervures fuscous, 

 the stigma pale testaceous. Abodmen black, with an obscure cas- 

 taneous tinge ; the ovipositor nearly as long as the abdomen. 



Hah. Costa Rica, Irazu. 



3. Pimpla molesta. 



Female. Length 5 lines. — Black and shining ; the legs ferruginous, 

 with the apical joint black ; antennae black, the scape ferruginous, 

 the flagellum obscurely so beneath. The scutellum white ; the 

 metathorax transversely irregularly striated; wings hyaline and 

 iridescent, the nervures black. The first segment of the abdomen 



