104 MB. smith's catalogue of hymenoptebous insects 



the intermediate legs with a line on the femora behind, a spot at their 

 apex in front, the tibiae in front as well as the tarsi, yellow ; the 

 posterior legs with a stripe on the tibia3 in front at their base ; the wings 

 hyaline and irridescent. Abdomen : an elongate transverse yellow 

 macula on each side of the basal segment near its apical margin, a 

 yellow fascia on the apical margin of the second segment, widest at 

 the sides, an abbreviated fascia in the middle of the third, an entire 

 one on the fourth, and a spot on each side of the fifth. 



Male. Differs in having the clypeus black, two parallel abbreviated 

 yellow lines on the disk of the mesothorax and the fasciae on the 

 abdomen entire, that on the basal segment being very broad and deeply 

 notched in the middle. 



Hab. Borneo (Sarawak). 



I have here restored the name Larra to one of the insects agreeing with 

 the type, L. vespiformis, — the Stizus vespiformis of many authors. 



Gen. Pison, Spin. 



1. Pison suspiciosus. P. niger; capite thoraceque rude punctatis ; 

 abdomine laevigato, nitido ; facie pube argentea ornata. 



Female. Length 4 lines. Black ; the face with silvery pubescence ; 

 the palpi testaceous ; the tips of the mandibles ferruginous ; the head 

 and thorax strongly and closely punctured, the clypeus finely so. 

 Thorax : the tegulae testaceous ; the wings fusco-hyaline ; the first 

 recurrent nervure received at the apex of the first submarginal cell ; 

 the second at the apex of the second submarginal ; the nervines dark 

 fuscous ; the metathorax with a number of coarse radiating striae at its 

 base ; the truncation transversely rugose. Abdomen : very smooth 

 and shining, with a few delicate scattered punctures ; the margins of 

 the segments depressed. 



Hab. Singapore. 



This species very closely resembles the Pison rugosus, but it differs from 

 that species in the neuration of the wings, and also in the puncturing 

 of the abdomen ; I suspect that an example in fine condition would have 

 silvery bands on the abdomen. 



Subgen. Pisonoides, Shuck. 



The anterior wings with one marginal cell, and two submarginal cells, 

 each receiving a recurrent nervure. 



1. Pisonoides obliteratus. P. ater, glaber, tenuissime punctatus ; 



facie argenteo-villosa ; alis hyalinis iridescentibus ; metathoracis basi 



laevi. 

 Female. Length 3^ lines. Black ; the head and thorax punctured, the 



mesothorax rather distantly so ; the clypeus and the notch of the eyes 



