the Apidaj in the British Museum. 327 



Key to the new Species. 

 22' 



Abdomen mostly black, end of abdomen 

 red, the colour either tegumentary or 

 due to hair. 



1. (4) Apex of abdomen with the tegument red. 



2. (3) Head, thorax, and abdomen for the most 



part clothed with fulvous-grey pubes- 

 cence ; tergites 4-6 almost completely 

 dusted with such pubescence ; clypeus 

 with the apex emarginate ; a broad 

 species, 11 mm leeuwhiettsis, sp. n. 



3. (2) Thoracic and abdouiinal pubescence gri- 



seous ; clypeus truncate at apex ; a small 



slender species, 8| mm lonyiceps, sp. n. 



4. (1) Apex of abdomen with tegument not red. 



5. (10) Clypeus ver}' short, deeply emarginate, at 



least with lateral teeth or larain;e. 



6. (7) Small (about 8 mm.). Mandibles biden- 



tate ; clypeus with a median tooth and 



a large process on each side ^^rem?, Ckl],(1910). 



7. (6) Larger (12-15 mm.). No median tooth 



on clypeus at apex ; mandibles 3-4- 

 toothed. 



8. (9) Mandibles deeply furrowed aloug the inner 



margin, 3-toothed, a large blunt tubercle 

 on the outside at base; axillae with a 

 distinct patch of whitish pubescence. 



15 mm axillaris, sp. n. 



9. (8) Mandibles normal, not furrowed along the 



inner margin, and no tubercle at base, 

 no patches of pale pubescence on axillae. 

 12 mm speluncarum, sp. n. 



10. (5) Clypeus about half as long as broad, the 



apex at least not deeply emarginate. 



11. (12) Scopa black ; abdomen black, tergites 



1, 2, and 3 (partly) with white apical 

 fascife of pubescence, tergite 6 with a 

 small patch of ferruginous red hair. 



16 mm resinifera, sp. n. 



12. (11) Scopa pale, sternite 6 sometimes fuscous. 



13. (14) Upper part of clypeus with a median raised 



line, its lower margin 4-dentate, the [(1910). 



teeth small remotula, Ckll. 



14. (13) Clypeus truncate at apex, no median raised 



line. 



15. (16) Abdomen subparallel-sided, tergites 5 and 



6 with red hair-patches ferox, F. Smith. 



16. (15) Abdomen ovate ; tergite 6 (and sometimes 



5 at extreme apex) with red hair subferox, sp. n. 



6 6- 



1. (4) Anterior tarsi simple or flattened, but not 

 conspicuously dilated ; pubescence of 

 head and thorax griseous. 



22* 



