544 APIDJE. 



955. Xylocopa caernlea. (PI. IV, fig. 8.) 



]5onibiis caa-uleus, Fabr. Syst. Piez. p. 345. 



Xylocopa caerulea, Lepel. Jlym. ii, p. 200 ; Smith, Cat. ii, p. 357 ; 

 Ball. Ton: Cat. x, p. 207. 



§ c? • Head, thorax, and basal abdominal segment densely pubes- 

 cent, and punctured finely and closely under the pubescence, 

 except on the disc of the mesonotum which is smooth. Black; 

 the intermediate and posterior legs and the sides of the apical 

 five abdominal segments with black pubescence ; the head, thorax, 

 and anterior tibiae ^vith a beautiful blue pubescence ; the pubes- 

 cence on the anterior tarsi black ; wings dark fuscous with a 

 purple effulgence. 



Hah. Sikhim ; Burma; Tenasserim ; extending as far as New 

 Caledonia. $. Length 3 7-19; exj^. 38-40 mm. I have not see 

 the male. 



956. Xylocopa flavonigrescens, Smith, Cat. ii, p. 354, c? ; Ball. Torr. 



Cat. X, 1^211. 



c? . Head and thorax densely, abdomen sparsely pubescent, 

 the last very finely, closely, and regularly punctured ; the clypeus, 

 face in front, vertex of the head, thorax, and basal abdominal 

 seo-ment above with bright yellow pubescence ; the cheeks behind 

 the eyes, the 2ud and following segments of the abdomen with 

 black "pubescence, having an obscure olive tinge on segments 2-4 ; 

 a very narrow line of bright yellow pubescence slightly interrupted 

 in the middle at the bases of the 4th, 5th, and 6th segments, and 

 the ventral segments fringed with long yellow hairs ; antenna? black ; 

 the sf^ape and apical ten joints of the flagell urn testaceous yellow 

 beneath; legs black, with fuscous-brown pubescence, the anterior and 

 intermediate tibiae and tarsi posteriorly, and the apical three joints 

 of the latter anteriorly, also fringed with long pale pubescence ; 

 wings fusco-hyaline, with a rich purple effulgence. 



Hab. Sylhet ; Southern Tenasserim. cJ • Length 24-25; exp. 

 54 mm. $ unknown. 



Genus BOMBUS. 

 Bombus, Latr. Hist. Nat Ins. m, p. 385 (1802). 



Tvpe, B. ferrestris, Fabr. 



Range. Both hemispheres. 



The species belonging to this genus are densely pubescent. Head 

 not so wide as the thorax, with front and face frequently elongate ; 

 the eyes rather narrow, not reaching down to the base of the 

 mandibles ; the ocelli nearly in a straight line on the vertex ; the 

 antennae geniculate, long and filiform in the c? ; the clypeus 

 convex, generally much longer than broad ; labriim ciliated, and 

 in all the Indian species I know incised in the middle ; mandibles 

 stout, broad, grooved at their apex, which is rounded ; tongue 

 elongate, pubescent ; labial palpi 4-jointed, the proportions of the 



