SOME BEES FROM FORMOSA. 11 



Sm., from which it differs at once by the colour of the bands and 

 the absence of a band on the first segment. According to Friese, 

 N. elliotii also occurs in Formosa. 



Group B. (subg. Paronomia, Friese). 

 Postscutellum unarmed ; abdomen with coloured tegumentary bands. 



Nomia thoracica, Smith. 

 The specimens have been compared with a thoracica from 

 F. Smith's collection. Thirty specimens, including both sexes, 

 all from Takao, July to October. Easily known from the other 

 Formosan species of this group by the dense covering of moss- 

 like fulvous or ferruginous hair on the thorax above. 



Nomia megasoma, n. sp. 



? . Length about 13J-15 mm. ; black, the head and thorax 

 finely punctured, clothed with fulvous hair, that on the mesothorax 

 not hiding the surface ; mandibles thick, bidentate ; clypeus shining, 

 with scattered punctures, and with a median keel which is strong 

 above, evanescent below ; supraclypeal area convex, not keeled ; 

 antenniB black, the scape long, the flagellum obscurely ferruginous 

 beneath ; vertex angulate behind ocelli ; front finely rugosopunctate ; 

 mesothorax dull, finely and rather closely punctured ; scutellum 

 irregularly punctured, the punctures of different sizes ; metathorax 

 shining, with scattered punctures, more or less in rows ; basal area 

 consisting of a broad shining transverse sulcus, crossed by raised 

 lines, and a V-shaped median apical smooth area ; tegulae rather 

 large, bright ferruginous ; wings dusky, strongly orange-tinted, the 

 apex with a dark fuscous patch ; stigma and nervures ferruginous ; 

 first r. n. joining second s. m. near its base ; legs black with 

 ferruginous hair, the tarsi dark reddish ; abdomen shining, sparsely 

 punctured, the punctures on first abdominal segment distinctly larger 

 than those on second ; first two segments with fulvous hair, the 

 others with mostly black, but fulvous at sides ; hind margins of 

 segments two to four with pale orange tegumentary bands, which 

 are narrow, only covering about half of the apical depression ; venter 

 with much red hair. 



Hab. Formosa (no special locality given) ; four specimens. 

 In Bingham's table this runs nearest to N. thoracica and 

 N.formosa, but does not closely resemble these species. N. plani- 

 ventris, Friese, of which only the male is known, appears to be 

 very similar, but the outer margin of the wing is dark, not 

 merely the apex. I am not sure that N. viegasorjia is not the 

 female of planiventris, but, after carefully going over Friese's 

 description, I have thought it best to regard it as distinct. 



Nomia pavonura, n. sp. 

 S . Length about 12 mm. ; black, the head finely and irregularly 

 punctured, the shining mesothorax and scutellum strongly and quite 



