510 Mr. F. Smith's Descriptions of 



10. Trigona Mosquito. 



T. flavescenti-rufa ; capite thoraceque nigris ; alis hyalinis. 



Worker. Length 2 lines. Pale reddish-yellow, the head and 

 thorax black, or, in some examples, of a brownish red ; the scape 

 in front, the clypeiis, the face on each side of it, and the mandi- 

 bles, pale reddish-yellow. The scutellura, tegulae and legs pale ; 

 the scntellum sometimes whitish ; the wings hyaline and irides- 

 cent, the nervures brown ; the posterior tibiae have usually a dark 

 stain in the middle. Abdomen entirely pale. The mandibles not 

 toothed. 



11. Trigona amalthea, (Sanhar6.) 

 T, nigra ; facie pube cinerea vestita ; alis fusco-nigris. 

 Worker. Length 2| lines. Black and shining; the face and 

 cheeks with a fine cinereous pile ; the flagellum obscurely rufo- 

 piceous beneath ; the tips of the mandibles rufo-piceous. The 

 thorax and legs with black pubescence ; the apical joint of the 

 tarsi rufo-piceous ; wings dark fuscous, slightly paler towards 

 their apical margins. The mandibles strongly toothed. 



12. Trigona dor salts. (Mo^a branca.) 



T. pallide ferruginea ; capite thoraceque supra nigris ; clypeo 



antennisque pallide ferrugineis ; abdomine oblongo ; alis 



hyalinis. 



Worker. Length S\ lines. Pale ferruginous, with the head 



and thorax black above ; clypeus, mandibles and antennae pale 



ferruginous ; also a narrow pale line at the inner orbits of the 



eyes ; the face has a thin griseous pubescence, that on the thorax 



and legs is fulvous ; the antennae more or less fuscous above. 



The posterior tibiae fringed with a mixture of pale and black 



hairs ; abdomen elongate, tapering towards the apex. Mandibles 



not toothed. 



13. Trigona mellea. (Cutia o de purga.) 



T. melleo-flava ; alis hyalinis iridescentibus. 



Worker. Length 3 lines. Entirely of a honey-yellow colour ; 

 the sides of the face covered thinly with fine griseous pile ; the 

 mandibles of a paler yellow. The sides of the thorax with a fine 

 griseous pile ; the apical joints of the tarsi reddish-yellow ; the 

 wings hyaline and iridescent, the nervures pale yellow ; abdomen 

 elongate. Mandibles toothed. 



