8o Cameron, Hymcnoptcra Orientalia. 



jjalpi testaceous. Thorax black, shining, more or less 

 thickly covered with silvery pubescence ; the pronotum 

 with an oblique slope behind, distinctly separated from 

 the mcsonotum, which is indistinctly furrowed, except at 

 the base ; the median segment is more strongly and 

 distinctl}' aciculated. Proplcura^ closcl)-, minutely and 

 distinctly punctured ; in the middle behind, is a deep, 

 narrow, distinct, curved furrow. The base of the meso- 

 pleura; strongly and closely punctured ; on the lower part 

 at the base is a short, oblique, deep furrow, which is 

 covered with silvery pubescence ; the middle fovea is 

 large and deep. Metapleunne strongly aciculated ; the 

 furrow at the base is curved, moderately wide and deep ; 

 on the upper side is a fine keel. Wings clear hyaline, 

 the nervures fuscous. Abdomen black, shining. 



This is the smallest of the Indian species, the smallest 

 species hitherto described being T.hndd/ia, which is 9 mm. 

 in length. The median segment has no lateral furrows. 



EVAXIID.-E. 



AULACUS IRIDIl'ENNIS, sp. nov. 



Niger, scapo antcnnanim tibiisque anicrioribus rufis ; 

 alls hyalinis, viacnla siibstigiiiatali fiisca. o . 



Long. 14 mm. 



Antennje short, distinctly thinner at the apex ; black ; 

 the scape rufo-testaceous ; the second joint is thickl}- pilose ; 

 is about one-half the length of the third ; both together 

 arc about as long as the fourth. Head shining, smooth ; 

 the vertex sparsely covered with short fuscous pubes- 

 cence ; the face and lower inner orbits thickly with white 

 pubescence. The clypeus slightly projects in the middle ; 

 the apex bluntly carinate in the centre, and oblique. 

 Mandibles on the lower sides fringed with golden hair. 

 The head is not much narrowed behind the eyes ; and is 



