xiii. D, 4 Cocker ell: Megachilid Bees 133 



18. Tarsi red tarsatula Cockerell. 



Tarsi dark, except for the hair 19. 



19. Anterior tarsi modified, with a yellow boat-shaped process. 



navicularis Cockerell. 

 Anterior tarsi without such a process 20. 



20. Anterior tarsi broadened, ferruginous structilis Cockerell. 



Anterior tarsi black 21. 



21. Anterior and middle tarsi with long white hair behind... laticeps Smith. 

 ■ Anterior tarsi simple, ordinary 22. 



22. Sixth abdominal segment above without light tomentum, or (candentula) 



only with red hair at sides 23. 



Sixth abdominal segment above with light tomentum 25. 



23. Fifth abdominal segment covered with red tomentum. 



candentula Cockerell. 

 Fifth abdominal segment without red tomentum 24. 



24. Hair of scutellum black merrilli Cockerell. 



Hair of scutellum ocherous mcgregori Cockerell. 



25. Hair of head and thorax above largely black, that on scutellum long. 



philippinensis Friese. 

 Like the last, but the dense tomentum of abdominal bands and sixth 



segment golden fulvous; mandibles with three large teeth and a small 



tooth between first and second philippinensis vizcayana Cockerell. 



Hair on head and thorax above largely black or dark fuscous, but 



relatively short on scutellum; mesothorax glistening., valdezi Cockerell. 

 Hair on head and thorax above ocherous (rarely a little fuscous) ; 



mesothorax dull subrixator Cockerell. 



Megachile clotho Smith. 



Megachile clotho Smith; Cockerell, Ann. & Mag. Nat. Hist. (1915), 

 VIII, 15, 266. 



Mindanao, Dapitan (from Baker) . Brown * listed the species 

 from the Philippines, without particulars. 



Megachile tuberculata Smith. 



Megachile tuberculata Smith, Journ. Linn. Soc. London (1858), 2, 46. 

 Megachile longipalpis Radoszkowski, Wiadom. z. nauk. przyrodz. 

 Warszow (1882), 2, 79. 



Female, 26 millimeters long. According to Friese longipalpis 

 is the same as tuberculata, and there seems to be nothing in the 

 descriptions to indicate the contrary. Megachile tuberculata 

 was originally described from Sarawak; M. longipalpis is re- 

 corded from the Philippines. 



Megachile atrata Smith, 



Megachile atrata Smith, Cat. Hym. Brit. Mus. (1853), 1, 182; 

 AsHMEAD, Proc. U. S. Nat. Mus. (1904), 28, 149. 



*This Journal (1906), 1, 606. 



