[To face page 410. 



tdontolabis, arranged according to their Morphological, Genetic, and Geographical Relationships. 



cJ MANDIBLES POLYMORPHIC. 



A. c? MEBTUM HATRLESS. 



2 bicolorous. 



ormosa.) 



omeo.) 



ngir.) 



II. stevensi group. 

 9. 0. stevensi, Thorns. (Celebes.) 



10. 0. duivenbodii, Deyr. (Sangir.) 



III. burmeisteri group. 



11. 0. sinensis, Westw. (China.) 



12. 0. cuvera, Hope. (N. India.) 



13. 0. mouhoti. Parry. (S. Siam.) 



14. 0. delesserti, Gner. (S. India.) 



15. 0. burmeisteri, Hope. (Travancore.) 



IV. wollastoni group. 



^ mandibles uniform (retrograde?). 



16. O.H'o?fasiont, Parry. (Malacca, Sumatra.)— ^ r ^ 



h. 



17. 0. TOHen/iOvcm, Parry. (Borneo. )- 

 18. 0. ludehimji, VoU. (Sumatra.) 



y 



19. 0. lacordairii, VoU. (Sumatra.)- 



20. 0. (jazeJla, Pabr. /Malacca. \ 

 (hirolnr. Oliv.) / Sumatra. 1 

 I V Borneo. / 



21. 0. inrrqualis. Kp. (Nias.) 



V. castehmudi group. 



B. (J MENTTJM HAIM', 



(Calcodes, Westw.') 



1 



Watus, Hope. (Malacca.) 



udia, Ceylon.) 

 (Ceylon.) 



\ 22. 0. castdnaudi, Parrr. (Malacca, Sumatra, Borneo.) 



23. 0. sommeri, Parry. (Sumatra, Banka.) 



24. 0. brool-eamts, Voll. (Borneo.) 



25. 0. Zotott, Parry. (Borneo.) 



Incert/E sedis. 

 /30. 0. s«nan«s, Deyr. (Malacca, Borneo. )N 

 \ d var. cephalotes. (Borneo.) / 



