Ichneumonidae in the British Museum. 39 



Subfamily Cbyptinjs. 



Tribe Mesostenini. 



Buodias gilberti, sp. n. 



5 . Nigra ; pedibus testaceis, posticis femoribus tibiisque apice 

 nigris ; tarsis posticis flavidulis, articulo apicali nigro ; palpis 

 flavidulis ; antennis 34-articulatis, articulis 7-14 albidis; alis 

 hyalinis, stigmate venisque nigris. 



Long. 14 mm. ; terebrae long. 5 mm. ; antennarum long. 12 mm. 



? . Clypeus closely and rather finely pnnctured ; face 

 sparsely punctured on the sides, punctured-rugose in the 

 middle ; front concave, smooth and shining between and 

 above the antennae, finely transversely rugulose below the 

 anterior ocellus, with a distinct longitudinal carina, the sides 

 sparsely punctured. Vertex very finely and sparsely punc- 

 tured. Antennae filiform ; the third, fourth, and fifth joints 

 subequal, each nearly twice as long as the scape. Meso- 

 notuin closely and not very finely punctured, parapsidal 

 furrows deep; scutellum convex and almost smooth in the 

 middle, the sides coarsely obliquely striated. Median segment 

 with a transverse carina, deeply emarginate posteriorly before 

 the middle, the base of the segment before the carina finely 

 rugulose, with a small basal area which is strongly narrowed 

 towards the apex ; spiracles rather small, oblong, the trans- 

 verse carina curved below them and running to the base of 

 the segment, thus forming a large enclosed area on each side; 

 beyond the carina the segment is coarsely obliquely rugose- 

 striate, with an almost obsolete strongly arched apical carina 

 the apical angles produced into a short, blunt, subtriangular 

 spine ; the posterior slope coarsely transversely rugose- 

 stiiate and slightly concave, the dorsal surface broader than 

 long. First tergite as long as the hind coxaa plus two-thirds 

 of the first joint of the hind trochanters, the basal half forming 

 a slender petiole; second tergite about one-third longer than 

 its apical breadth, finely and rather closely punctured ; third 

 tergite broader than long, slightly narrowed to the apex and 

 minutely and closely punctured, as also are the remainino- 

 tergites. Areolet small, four-sided, the first transverse 

 cubital nervure very short, only half as long as the second ; 

 recurrent nervure received close to the apex of the areolet. 



Hab. Mackay, Queensland (Turner). 2 $ ? . 



Very near the Solomon Island species Mesostenus insulari*, 

 Cam., but differs in the black apices of the hind femora and 



