_Male._ Length 5-1/2 lines. Black; closely and strongly punctured, the punctures confluent on the abdomen. The face clothed with fulvous pubescence. The tarsi obscurely rufo-piceous, the claws ferruginous; wings dark fuscous, their base hyaline. Abdomen: the apical margins of the segments smooth, impunctate, their basal margins very deeply depressed; a deep fovea at the tip of the apical segment; the head, thorax, and abdomen clothed beneath with short cinereous pubescence. _Hab._ Celebes. 2. MEGACHILE FULVIFRONS. _M._ nigra, delicatule punctata; facie dense fulvo pubescente; thoracis lateribus abdomineque subtus fulvo pubescentibus; fasciis marginalibus abdominis fulvis. _Female._ Length 7 lines. Black; head and thorax closely punctured, the abdomen delicately so and shining; the mandibles stout, with two acute teeth at their apex, shining and covered with oblong punctures; the face, sides of the thorax, and abdomen beneath, densely clothed with fulvous pubescence; the apical margins of the segments of the abdomen above with narrow fasciae of short fulvous pubescence; the abdomen in certain lights has a metallic tinge. The _male_ is similarly clothed to the female, the margins of the segments are deeply depressed, and that of the apical segment slightly notched in the middle. _Hab._ Celebes. 3. MEGACHILE TERMINALIS. _M._ nigra, capite thoraceque dense punctatis; abdomine pube nigra vestito; segmentis duobus apicalibus pube alba vestitis; alis fuscis. _Female._ Length 9 lines. Black; the face with tufts of black pubescence above the insertion of the antennae; mandibles very stout, with an acute tooth at their apex, the inner margin subdentate, and covered with fine cinereous pubescence. Thorax with black pubescence at the sides of the metathorax; the wings dark fuscous. Abdomen clothed with black pubescence; the fifth and sixth segments clothed with ochraceous pubescence above, that on the sixth nearly white. _Hab._ Celebes. This species resembles the _M. ornata_; but when viewed beneath, the different colour of the pollen-brush at once separates them. Gen. CERATINA, _Spin._ 1. Ceratina viridis, _Guer. Icon. Reg. Ann._ 444. t. 73. f. 6. _Hab._ India (Bengal, N. India), Ceylon, Celebes, China. 2. Ceratina hieroglyphica, _Smith_, _Cat. Hym. Ins._ ii. 226. _Hab._ Northern India, Celebes, Philippine Islands, Hong Kong. Fam. DENUDATAE. 1. STELIS ABDOMINALIS. _S._ dense punctata, capite thoraceque nigris, abdomine ferrugineo; alis nigro-fuscis violaceo iridescentibus. _Male._ Length 5 lines. Head and thorax black, abdomen ferruginous; head and thorax strongly punctured, the scutellum very strongly so; the sides of the face and the anterior margin of the face fringed with white pubescence. The posterior margin of the scutellum rounded; wings dark brown with a violet iridescence. Abdomen ferruginous and closely punctured. _Hab._ Celebes.