106 ME. smith's catalogue of htmenopterous insects 



3. Trypoxyon coloratum. T. nigrum, laeve, nitidum ; pedibus 

 pallide ferrugineis, abdomine subferrugineo supra, obscure maculato. 



Male. Length 7i lines. Black, smooth and shining : the clypeus, 

 mandibles, palpi and scape of the antennae, covered with golden 

 pile ; the cheeks and the emargination of the eyes with a glittering 

 pale golden pile. Thorax : the posterior margin of the prothorax, 

 the tegulae, tubercles and legs, pale ferruginous ; the intermediate 

 and posterior tibiae beneath, and also the tarsi, fuscous ; the apex 

 of the joints of the latter ferruginous ; the wings hyaline, their ner- 

 vures ferruginous, the stigma pale ; the sides of the thorax and the 

 metathorax with golden pubescence. Abdomen rufo-testaceous ; the 

 petiole, except its base, above, the node at its apex, above, as well as 

 all the segments, more or less black, or rufo-fuscous above ; the base 

 and apex of the segments, as well as the apical segment entirely, pale ; 

 beneath entirely pale. 



Hab. Borneo (Sarawak). 



This species is about the size of T. bicolor, which it very much resembles, 

 but from which it is very distinct. 



G-en. Cbabeo, Fabr. 



1. Crabro familiaris. C. niger, ocellis triangulariter ordinatis, meso- 

 thorace punctulato, pedibus flavis, metathorace Isevi nitido, abdo- 

 mine pubescente. 



Male. Length 2^ lines. Black : head a little wider than the thorax, 

 shining and delicately punctured; the stemmata in a triangle; the 

 clypeus and cheeks with silvery pubescence ; the scape yellow ; the 

 flagellum rufo-testaceous, slightly fuscous above ; the palpi pale tes- 

 taceous ; the mandibles ferruginous at their apex. Thorax : the 

 collar, tubercles, tegulae, scutellum and post-scutellum, the extreme 

 base of the wings, and the legs, of a sulphur-yellow ; the wings hya- 

 line and splendidly iridescent ; the base of the femora and the coxae 

 slightly ferruginous ; the mesothorax delicately punctured ; the meta- 

 thorax smooth and shining, with a central impressed fovea. Abdomen 

 pubescent, with the apical margins of the segments rufo-piceous. 



Hab. Borneo (Sarawak). 



2. Crabro RUGosus. C. niger, ocellis triangulariter ordinatis in vertice, 

 mesothorace longitudinaliter striato, metathorace rugoso. 



Male. Length 2^ lines. Black: head wider than the thorax, quadrate; 

 the stemmata in a triangle on the vertex; an impressed line in 

 front of the anterior stemma extending to the sulcation on the face ; 

 an impressed line running round the orbits of the eyes ; the 

 cheeks and face with a dense silvery pubescence ; the scape yellow ; 

 the tips of the mandibles ferruginous. Thorax : an interrupted line 

 on the collar, the tubercles, two spots on the scutellum, the post- 

 scutellum, the tips of the anterior femora, all the tibiae at their base. 



