4 Mr. T. D. A. Cockereil — Descriptions and 



pinkish at apex. Abdomen strongly but not densely 

 punctured. 



Hub. P. Princesa, Palawan (Baker coll. 3834). From the 

 same locality comes a female Mesotrichia amauroptera 

 {Xylocopa amauroptera, Perez), Baker coll. 3835. 



I understand that the bees from other islands than Luzon 

 ■were not collected by Professor Baker personally, but by a 

 collector in his employ. 



X. mimetica is superficially exactly like M. amauroptera, 

 though there are important structural differences, not only 

 in the thorax, but also in variation — e. g., the lower section 

 of the basal nervure is much longer than in amauroptera. 



X. mimetica is closely allied to X. dissimilis, Lep., but 

 without pale hair on thorax. The abdomen has none of the 

 greenish colour of X. fallax, Maidl, while the wings have 

 not the brilliant green tints of X. auripenms, Lep. X. picti- 

 pennis, Sm., from Java, is related, but much larger, with 

 more brilliantly coloured wings. 



Anthophora zonata stantoni, Cockereil. 



Mt. Makiling, Luzon (Baker, 3815) ; Dapitan, Mindanao 

 (Baker coll. 3844). 



Two males, quite alike. The male shows that this form is 

 very close to A. korotonensis, Ckll., from Formosa, having 

 the same general characters, including the structure of 

 ventral segments of abdomen. The abdominal bands are a 

 beautiful pearly green. 



Nomada mindanaonis, Cockereil. 



Two females from P. Princesa, Palawan (Baker coll. 3880). 



One is smaller than the other and has only two submar- 

 ginal cells, the second t.-c. being absent ; it is apparently 

 only a variation. The larger specimen is larger than the 

 original type of the species. 



Halictus ivaterhousei, sp. n. 



$ (type). — Length 10 mm., expanse 19"5. 

 Black, including legs and antennas ; head rather narrow, 

 cheeks moderate ; front and vertex with thin fulvous hair ; 

 clypeus strongly and more or less continently punctured, but 

 shining between the punctures ; front dull and rough ; 

 thorax above, and at least on upper part of sides, clothed 

 with fulvous hair (matted in the type, which has been 

 in some liquid) ; mesothorax dull aud rough, with dei.se 



