10 Mr. P. Cameron on TItjmenoptera 



On underside tlie marginal area of fore wing in male nearly 

 as deep brown as the disk, with a thin grey submarginal 

 line ; in female the whitish submarginal shade of both wings 

 more restricted than in Delegorguei, and tlie brown submar- 

 ginal line more irregular, being slightly angulate below 

 middle. 



Natal and Grahamstown ; several males and females in 

 the Tring Museum and the British Museum. 



21. Ludia eximia, sp. n. 



Also closely resembling L. Delegorguei. 



Body and wings more blackish brown ; basal, costal, and 

 outer marginal areas shaded with grey, not clay ; submarginal 

 line on both wings posteriorly a little less close to edge than 

 in Delegorguei, the margin of fore wing densely shaded with 

 blackish above and beneath ; costal margin of hind wing 

 longer than in Delegorguei, the wing being less triangular. 



Ventral lobe of clasper (of male) short and blunt, the apical 

 lobe rounded off, not produced into a thorn-like process. 



Kampala, Uganda; one male in the Tring Museum. 



II. — A Contribution to the Knoivledge of the Hymenoptera 

 of the Oriental Zoological Regio7i. By P. Cameron. 



For the Indian species described in this paper I am indebted 

 to Col. C. T. Bingham ; those from Borneo were sent me by 

 Mr. John Hewitt, the Curator of the Sarawak Museum. I 

 have also described a few species taken by Col. Nurse in 

 Baluchistan and Simla. 



Braconidae. 



Ij)hiaulax Preyeri, sp. n. 



Black ; the head, antennal scape, thorax, and the four ante- 

 rior legs red, the middle tibiae and tarsi darker coloured ; the 

 wings fuscous, the nervures and stigma black ; the head, 

 metathorax, and legs covered densely Mith loiigish blackish 

 pubescence, the ovipositor densely with stiff black hair; 

 the first abdominal segment suffused with rufous, the raised 

 central part almost smooth, the middle with a narrow keel 

 down the centre ; the second segment closely but not very 

 strongly striated, the keel narrow, extending to the apex, 

 the base with a small smooth triangular plate ; the third is 



