Manchester Memoirs, Vol. xliii. (1899), No. 3. 35 



tarsi are lined behind with black ; the apex of the hinder 



femora above, and the hinder tibiae and tarsi, entirely 



black. The dorsum of the abdomen has a distinct bluish 



tinge. 



It comes near to P. albocincta Cam., from the 



Himalayas (Trans. Ent. Soc, 1881, p. S^5)> but that is 



distinct. 



Beldonea, £en. nov. 



Wings with two radial and four cubital cellules ; the 

 basal nervure received distinctly before the base of the 

 cubital Lanceolate cellule divided into two unequal 

 parts through the humeral nervure touching the brachial 

 nervure. Hind wings with two cubital cellules ; the acces- 

 sory nervure appendiculate. Antennae short, thickened 

 before the apex ; the third joint is twice the length of the 

 fourth. Eyes large, parallel, reaching close to the base of 

 the mandibles. Clypeus transverse, or nearly so ; the 

 labrum large, rounded at the apex. Mandibles large, 

 acutely pointed at the apex ; when closed their apices 

 reach to the side of the clypeus. Legs of normal size ; 

 the calcaria short, not much more than one-fourth of the 

 length of the metatarsus, which is distinctly longer than 

 all the other joints united. The claws are bifid ; the 

 anterior calcaria are sharp, simple. Abdomen short. 



The relationship of this genus is clearly with Siobla 

 and Strongylogaster, from both of which it may be known 

 by the form of the lanceolate cellule ; in Siobla it is open, 

 not divided into two parts by its nervure uniting with the 

 one above, there being further no oblique cross nervure, 

 the same remark applying to Strongylogaster. Comparing 

 it with the typical Strongylogaster, e.g., with ^. cingulatus, 

 it is seen to have the abdomen shorter and thicker, the 

 antennae more thickened beyond the middle, and with the 

 third joint clearly longer compared with the fourth ; and 



