488 Mr. T. D. A. Cockeiell — Descrijitions and 



punctured, but shining, not keeled, the lower margin finely 

 crenulate or nodulose ; supraclypeal area shining, sparsely 

 punctured in middle ; vertex, mesothorax, and scutellura 

 closely and finely punctured ; hair o£ thorax white, abundant, 

 but black on disc of mesothorax, and much long black hair 

 on scutellum ; tegulie dark brown. Wings slightly dusky. 

 Legs with silvery hairs, those on inner side of tarsi orange- 

 ferruginous ; spurs ferruginous ; hind basitarsi broad and 

 flat. Abdomen black between the bands, with short black 

 hair. 



Hob. Formossi (Sauter). Two females in Berlin Museum. 

 The type is from Taihanroku, June 11, 1908; the other 

 from Takao, Oct. 1, 1907. 



Megachile rixator, sp. n. 



? , — Length about 12 mm. 



Black (including legs), but flagellum ferruginous beneath; 

 form rather narrow and parallel-sided ; pubescence pale 

 ochreous, white ventrally, the ventral scopa white at base, 

 otherwise light fulvous, strongly fulvous apically ; general 

 form and appearance (except for the yellowish pubescence) 

 like the American M. soledadensis, Ckll. 



Mandibles quadridentate ; clypeus densely punctured, but 

 with a broad shining median low ridge, not amounting to a 

 keel ; supraclypeal area with its lower part bare and shining, 

 front covered with dense ochreous hair, with no black inter- 

 mixed ; hair of vertex rather dark reddish ; vertex with fine 

 punctures ; mesothorax and scutellum finely and very densely 

 punctured ; thorax thickly clothed with ochreous hair, short 

 and darker, but not fuscous, above, white beneath ; teguloe 

 reddish with pallid margins. Wings slightly dusky. Legs 

 with shining white and pale yellow hair, ferruginous on inner 

 side of tarsi ; hind basitarsus broad and flat ; spurs very pale ; 

 claws with a basal tooth. First abdominal segment with much 

 ochreous hair, the others with conspicuous narrow entire 

 ochreous hair- bands; apical segment obliquely descending, 

 its lateral profile making an angle of perhaps 45 degrees. 



Hab. Takao, Formosa, Sept. 29, 1907 {Sauter). Two 

 females in Berlin Museum. 



A series of 19 other females collected by Sauter in 

 Formosa were at first separated on superficial appearances, 

 seeming smaller and more compact (length 9 to 10 mm), 

 with cordate abdomen. These prove on examination to be 

 M. ri:cator, varying in size, and with the abdomen retracted. 

 They are all from Takao, collected in September and 

 October. 



