COLLECTED AT EACniAN, KAISAA, ETC. 135 



Abtlomeu nigro-seneous, finely punctured, clothed beneath with bright 

 ferruginous pubescence. 



Male. The same in size and colour as the female ; the face clothed with 

 yellowish-white pubescence; the segments of the abdomen fringed 

 with dense black pubescence ; the apex obtuse, with the apical mar- 

 gin deeply notched in the middle. The abdomen is naked beneath and 

 of a pale rufo-testaceous coloiu". 



Hab. Amboyna. 



Gen. Xtlocopa, Latr. 



1. Xylocopa coronata. X. nigra; pube nigra vestita ; capite pos- 

 tice pube flava decorato ; alis nigro-fuscis iridescentibus. 



Female. Length 9^ lines. Black ; the flagellum rufo-testaceous be- 

 neath; the face covered with a mixtm-e of griseous and black pu- 

 bescence, that on the vertex and behind the eyes bright yellow. 

 Thorax : densely clothed with short black pubescence ; the disk of 

 the mesothorax naked, smooth and shining. Wings dark brown with 

 a splendid violet iridescence. Abdomen shining and finely punctured, 

 thinly clothed with short black pubescence in the middle, becoming 

 longer and more dense at the sides and towards the apex ; beneath 

 smooth and shining. 



Hab. Kaisaa. 



2. Xylocopa unicolor. X. nitida, nigra; alis aeneo et violaceo 

 splendide micantibus. 



Female. Length 9 lines. Black ; the flagellum, except the two basal 

 joints, testaceous beneath ; the clypeus with a transverse shining ridge 

 at its base, its anterior margin and a central longitudinal line smooth 

 and .shining; the face clothed with black pubescence. Thorax and 

 legs with black pubescence, the middle of the disk of the latter smooth 

 and shining ; a central impressed line runs from the anterior margin 

 of the prothorax to the middle of the mesothorax ; wings dark brown 

 with a violet iridescence changing to a green tint at their apex. Abdo- 

 men black, shining, and closely punctured ; the sides fringed with black 

 pubescence towards the apex. 

 Male, The body clothed with yellowish olive pubescence, darkest on 

 the abdomen, the sides of which towards the apex are fringed with 

 black ; the tibiae and tarsi have fulvous pubescence ; the posterior 

 tibiae are yellow ouside ; the antennae in front and the clypeus yellow, 

 the latter with two ovate black spots at its base ; the wings fulvo- 

 hyaUne and iridescent. 

 Hab. Amboyna. 



In both the sexes of this species the second submarginal cell is obsolete ; 

 in the male a trace of the first transverse cubital nervure is perceptible ; 

 this nervure will frequently be found more or less obliterated in different 

 species of this genus. The male closely resembles that of X. astuans. 



