of Exotic Hymcnoptcra. 153 



long sooty-black pubescence on the front and beneath, the cheeks with 

 a short downy cinereous pile. The disk of the thorax with silvery- 

 white pubescence; the apical joints of the anterior and intermediate 

 tarsi, and the posterior tibiae and tarsi rufo-piceous ; wings fusco- 

 hyaline. Abdomen : the pubescence on the first fom* segments short, 

 dense and black, that on the two apical ones sUvery-white. 

 Hah. Northern India. In the British Museum Collection. 



2. Bovibits opulentus. 



B. niger, pubescens ; vertice, thorace supra, abdominisque basi pube loete 

 fidva vestitis ; alis nigro-fuscis. 



Female. Length 9 lines. Black, pubescent ; the pubescence on the 

 face black, that on the vertex fulvous. The thorax clothed above with 

 fulvous pubescence, a tuft of the same colour beneath the wings ; the 

 pubescence on the legs black, that on the basal joint of the posterior 

 tarsi within obscurely ferruginous, the apical joints of the tarsi rufo- 

 piceous. Abdomen : a large quadrate patch of fidvous pubescence at 

 the base above, extending to the apical margin of the second segment, 

 the pubescence otherwise intensely black. The wings dark brown. 



Hah. North China. 



This beautiful species was captured by Mr. E.. Fortune : it is in 

 the Collection of the British Museum. 



3. Bombus laboriosus. 



B. niger, pubescens; thoracis lateribus, abdominisque tribus segmentis 

 basalibus pube pallido-liava vestitis, segmentis apicalibus pilis ferru- 

 gineis tectis. 



Female. Length 8 lines. Black, pubescent ; the head entirely black, 

 with the clypeus very smooth and shining, and delicately punctm-ed. 

 The thorax with black pubescence above and beneath, that on the sides 

 pale yellow; the pubescence on the legs entirely black; the wings 

 fusco-hyaline, the nervm'es black. Abdomen : the three basal segments 

 clothed with pubescence of a pale yellow, somewhat lemon-coloured ; 

 that on the thu'd segment not quite extending to the lateral margins ; 

 the apical segment tliinly sprinkled with feiTuginous hairs. 

 Worker. Length 5 lines. Coloured like the female. 



Hah. Oajaca (Mexico). In the Collection of the British Museum. 



4. Bombus modestus. 



B. niger, pubescens ; thorace antice, scuteUo, abdominisque apice flavis. 

 Female. Length 9 lines. Black, pubescent ; the clypeus very smooth, 

 shining, and delicately pimctm-ed. Thorax : the pubescence above 

 before the wings yellow; the scuteUum with a slight admixtui'e of 



