MALAYAN BEES 
By T. D. A. Cockerell 
Of the University of Colorado 
The bees described or recorded in this paper were all received 
from Prof. C. F. Baker, to whom we are indebted for greatly 
increasing our knowledge of the species of Borneo, Singapore, 
and Penang. As he remarked, these materials are of much in- 
terest to any student of the Philippine fauna, because it is not 
until we know what is found in other Malay regions that we 
can determine the percentage of really endemic Philippine species 
or form any distinct idea of the lines of migration which origin- 
ally populated that area. In other words, the biota of the 
Malay Archipelago and Peninsula must be studied essentially 
as a whole, though this is necessarily a vast undertaking, which 
cannot be completed within the lifetime of present-day workers. 
Genus UOMIA Latreille 
Males, with hind femora greatly enlarged or subglobose.. pachypoda sp. nov. 
Females, or if males, hind femora not greatly enlarged 1. 
1. Abdomen with green or green and red tegumentary bands; postscutel- 
lum unarmed 2. 
Abdomen without such bands 7. 
2. Abdomen with only three bands (none on first segment) ; first two 
segments metallic; female subpurpurea sp. nov. 
Abdomen with at least four bands (in one Penang male N. strigata, 
the band on first segment has not acquired the green color) 3. 
3. Legs at least partly red tuberculifrons Cockerell. 
Legs black 4. 
4. Bands mainly red, with some yellowish green selangorensis sp. nov. 
Bands without red 5. 
5. Males (Penang, 9610) strigata (Fabricius). 
Females; clypeus keeled 6. 
6. Abdominal bands with strong lilac tints (Singapore, 960k). 
strigata (Fabr.) variety. 
Abdominal bands without lilac tints (Singapore, 9606; Penang, 9605). 
strigata (Fabricius). 
7. Abdomen with white or cream-colored tegumentary bands 8. 
Abdomen without such bands 9. 
8. Base of abdomen largely pale red; scutellum dull. 
leucozonata penangensis subsp. nov. 
Base of abdomen black; scutellum shining perconcinna Cockerell. 
615 
