4 Cameron, Hymenoptera Orientalia. 



the pleurae and sternum with long white hair; the median 

 segment with an oblique slope at the apex ; its base 

 smooth, the rest rough, the apex with a few irregular 

 striations ; the apical part of the propleurae near the 

 middle with a few striations ; the rest of the pleurae 

 obscurely punctured ; the mesopleurae and the metapleurae 

 at the apex on the lower side striolated. Legs thickly 

 covered with short white hair ; black, including the 

 calcaria ; the hinder femora red. The areolet is a little 

 narrowed at the top, being there as wide as the space 

 bounded by the first transverse cubital and the recurrent 

 nervures. Petiole coarsely aciculated, keeled down the 

 centre and the sides; the apex smooth, shining; the other 

 segments smooth and shining. 



Ichneumon vacillans, sp. nov. 



Niger; tibiis tarsisque anterioribus, femoribus basique 

 tibiarum posticarum, rufis ; alis hyalinis, nervis fuscis. d~ 

 Long, ii mm. 



Hub. Mussouri (Rothney). 



Head black, thickly covered with moderately long 

 white hair, closely but not strongly punctured ; the palpi 

 black. Antennae entirely black ; the scape with a longish, 

 the flagellum thickly with a microscopic pile. Thorax 

 entirely black ; thickly covered with short fuscous pubes 

 cence. Metapleurae much more strongly punctured than 

 the mesonotum and more opaque ; the apex with a 

 gradually rounded slope ; obscurely striolated in the 

 middle ; a shallow furrow leads down from the. spiracles ; 

 the pleurae uniformly punctured. Wings hyaline ; the 

 nervures at the base and the stigma in the middle testa- 

 ceous. Legs: the apical third of the anterior femora, 

 the tibiae and tarsi, the middle legs except the coxae and 

 trochanters, the hinder femora except the knees, and the 

 basal third of the tibiae, red ; the calcaria pale rufous. 

 Abdomen black, shining, impunctate. 



