264 Mr. F. Smith's Monograph of the 



29. Xylocopa albijrons. 



Xylocopa alhifrons, St. Farg. Hym. ii. 191, $ . 



A male ; black, with the clypeus, the inner orbits of the 

 ejes, and a spot beneath the antennfe, white ; the pubes- 

 cence on the thorax and the first segment of the abdomen 

 obscure reddish-brown ; the four posterior tarsi have 

 rufous pubescence ; wings fuscous, with a violet irides- 

 cence. 



Hah. — Cape of Good Hope. 



A species I have not seen, and one of those of which 

 St. Fargeau has not given the size. 



30. Xylocopa angolensis. 



Female. — Black ; head closely punctured, a minute 

 tubercle between the antennae ; the disk of the thorax 

 shining, less closely punctured than the head, and with a 

 small impunctate space in the middle ; Avings subhyaline, 

 clouded towards their apical margins ; the anterior legs 

 with black pubescence, the intermediate and posterior 

 tibitfi and tarsi Avith bright fulvous pubescence ; the apical 

 joints of all the tarsi rufo-piceous. Abdomen shining, 

 fringed at the sides Avith cinereous pubescence, the apical 

 segment Avith black, and Avith a fcAv ferruginous hairs at 

 ihe extreme apex. 

 . Hab. — Angola. 



31. Xylocopa inconstans. 



Female. — Length 12 lines. Black; the A^ertex and 

 cheeks shining and Avith distant fine punctures ; the face 

 and clypeus strongly punctured. Thorax : the mesothorax 

 smooth and shining on the disk, the lateral margins closely 

 punctured ; a band of Avhite pubescence behind the inser- 

 tion of the Avings, crossing the scutellum, also a line 

 beneath the Avings ; the first segment of the abdomen Avith 

 white pubescence ; Avings very dark broAvn Avith a green 

 and purple iridescence. Abdomen finely and distantly 

 punctured. Length a little over an inch. 



This species varies both in size and colouring. I have 

 seen specimens from South Africa, sent by Dr. Living- 

 stone, only ten lines long ; the snoAv-Avhite bands on the 

 thorax and abdomen are sometimes bright yellow ; the 

 head is very large, as Avide as the abdomen. 



i/fii. — South Africa, Lake Ngami. 



