little-knoivn Species o/Thynnidse. 14-5 



and stouter than in most of the allied species. The pygidium 

 is not emarginate at the apex as it is in typical T/ii/nniis; 

 agreeing in this point with other species of the Zaspifo- 

 thynnus group, which, when the family is more studied, may 

 be raised to generic rank, as is done by Ashmead. 



Thynnus hrishanensis^ sp. n. 



S . Clypeus broadly truncate at the apex, the angles 

 slightly prominent, pointed at the base and connected with 

 the interantennal prominence by a short and narrow carina, 

 sparsely punctured and very finely longitudinally striated ; 

 the labrum prominent. Antenna3 inserted a little further 

 from each other than from the eyes ; the prominence between 

 them broadly triangular, with a carina from the apex ex- 

 tending to the anterior ocellus. Front closely and finely 

 punctured-striate, the vertex closely punctured. Pronotuin 

 broader than the head, closely punctured, with a very shallow 

 transverse groove behind the feebly raised anterior margin. 

 Mesonotum very closely punctured between the two longi- 

 tudinal lateral sulci, the centre more sparsely punctured ; 

 scutellum large, very broadly rounded at the apex, and 

 sparsely punctured ; the postscutellura almost transverse, 

 reaching but not projecting beyond the truncation of the 

 median segment, which is broad and slightly oblique, not 

 quite vertical, the surface very finely rugulose. Abdomen 

 subconical, the first segment truncate anteriorly, slightly 

 rounded at the anterior angles, as broad at the apex as the 

 second segment, the whole abdomen shining and rather 

 sparsely punctured, the segments not constricted. The 

 dorsal plate of the epipygium is produced, longitudinally 

 striated, and shallowly emarginate at the apex. Sixth ventral 

 segment with a short spine on each side at the apical angles. 

 Hypopygium with five spines, those at the basal angles 

 blunt and not very prominent. The first ventral segment is 

 longitudinally carinate and obliquely truncate at the apex, 

 the groove separating it from the second segment is shallow. 



Black ; the mandibles (except at the apex), the clypeus 

 the labrum, a broadly V-shaped mark between the antenna?, 

 the margins of the eyes narrowly interrupted at the summit, 

 the anterior and posterior margins of the pronotum, a spot 

 on the mesopleurge below the anterior wings and another 

 above the base of the intermediate coxae, the tegulre and a 

 narrow oblique line behind them, a broad median mark on 

 the posterior margin of the mesonotum, the apical half of the 

 scutellum and a spot on each side at the anterior angles, the 

 postscutellum, the median segment on the middle and the 



