CERATINA. 95 



10. Ceratina rotundiceps. 



Female. Length 3^ lines. — Bronze-green ; head strongly punctured, 

 rotundate, and a little wider than the thorax ; a minute white spot 

 on the clypeus. Mesothorax with a large smooth space on the 

 disk ; the scutellum shining, sparsely and finely punctured ; the 

 margin of the truncation of the metathorax smooth and shining ; 

 the sides of the thorax, and also beneath, closely and strongly 

 punctured ; legs black ; the anterior tibiae dark rufo-piceous ; the 

 apical joints of the tarsi rufo-piceous ; wings subltyaline, nervures 

 and stigma rufo-piceous, the tegulse with the outer margin rufo- 

 piceous. The basal segment of the abdomen smooth and shining, 

 the second and third closely punctured, the following segments 

 rugose. 



Hab. Para. 



11. Ceratina viridula. 



Male. Length 3| lines. — Bright green ; the head strongly punc- 

 tured, thorax less strongly so, the abdomen closely and finely 

 punctured. The anterior margin of the clypeus and a spot on 

 the labrum white. The mesothorax with a smooth shining space 

 on the disk, which has five longitudinal, smooth, impressed lines, 

 the two outer ones abbreviated ; the base of the metathorax with 

 longitudinal striae, the truncation closely punctured ; legs green, 

 with the apical joint of the tarsi ferruginous ; wings subhy aline, 

 the nervures fusco-ferruginous. Abdomen with the four basal seg- 

 ments punctured, the rest rugose ; the margin of the seventh seg- 

 ment entire ; the basal margins of the second, third, and fourth 

 segments smooth, shining blue. 



Hab. Brazil, St. Paulo. 



12. Ceratina bicolorata. 



Female. Length 4-4| lines. — Obscure bronze colour, with a purple 

 tint ; the three apical segments of the abdomen of a coppery green. 

 Head and thorax coarsely punctured ; the face with a subtriangular 

 spot on each side of the clypeus anteriorly, the clypeus with a 

 minute spot at its anterior margin, and a line behind the eyes, 

 yellow ; the clypeus with a deep longitudinal, impressed line. The 

 mesothorax with two longitudinal smooth spaces, which unite 

 posteriorly, being widened towards the scutellum ; wings sub- 

 hyaline ; the margin of the truncation of the metathorax smooth, 

 the truncation closely punctured ; legs black, the posterior pair 

 very pubescent. The basal segment of the abdomen smooth and 

 shining, the two following segments finely punctured, the following 

 segments rugose. 



Hab. Amazons, Ega. 



