Aculeate Hymenoptera. 257 



3 . Megachile fumip ennis . 



Female. Length 7 lines. Black : tlie basal segment 

 of the abdomen clothed with white pubescence, the 

 wings dark fuscous. Head closely and finely punc- 

 tured, the vertex with larger punctures interspersed ; 

 the face thickly covered with white pubescence ; the 

 mandibles stout, having elongate punctures, and a single 

 tooth at the apex. Thorax : the mesothorax roughened 

 with confluent punctures ; the prothorax, the sides, and 

 the metathorax with white pubescence ; the legs have a 

 short black pubescence ; the tarsal claws ferruginous. 

 Abdomen clothed beneath with black pubescence. 



Hab, Champion Bay. 



In the British Museum. 



4. Megachile sexmaculata. 



Female. Length 5| lines. Black: the face with golden 

 yellow pubescence, the abdomen with six white maculas, 

 the apex ferruginous. The mandibles with longitudinal 

 strigose punctures, a single tooth at the apex, and 

 fringed beneath with ferruginous hairs ; the cheeks with 

 cinereous pubescence. The thorax with cinereous pubes- 

 cence, as well as the legs; the basal joints of the tarsi 

 densely clothed above with short cinereous pubescence, 

 but with pale fulvous beneath ; wings fusco-hyaline, the 

 nervures black. Abdomen: a patch of snow-white 

 pubescence on each side of the three basal segments; a 

 large ovate ferruginous spot on the apex, occupying the 

 apical and a large portion of the fifth segment ; the pol^ 

 len brush beneath is silvery white. 



Hab. Champion Bay. 



In the British Museum. 



6. Megachile imitata. . 



Female. Length 6 lines. Black, and closely resem- 

 bling M. argentata. The face clothed with pale yel- 

 low pubescence, that on the cheeks silvery. The thorax 

 with pale yellow pubescence above, sparing on the disc ; 

 on the sides and beneath it is whitish, as is also the thin 

 short pubescence on the legs above, on the tarsi beneath 

 it is fulvous ; the wings sub-hyaline, the nervures black. 



TRANS. ENT. SOC. 1868. — PART II. (jULy) . S 



