XX 



INTRODUCTION, 



H-g./. 



Fig. 1. — Under side of Harpaius caliginosus with details: A. Antenna; B. Mandi- 

 ble; C. Labrum; D. Ligula ; E. Paragloss.T ; F. Labial palpus: G. Maxilla, inner lobe, 

 H. outer lobe; 7. Maxillary palpus; A'. Mentura ; L. Genae; M. Gula, with the gular 

 sutures ; N. Buccal fissure ; V. Ventral segments. 1. Prosternum ; 2. Prosternal epi- 

 sternum ; 3. Prosternal epimeron ; 4. Coxal cavity, closed behind ; 5. Inflexed side of pro- 

 notum ; 6. Mesosternum ; 7. Mesosternal episternum ; 8. Mesosternal epimeron ; 9. Meta- 

 sternum ; 10. Antecoxal piece ;"ll. Metasterual episternum; 12. Metasternal epimeron ; 

 13. Inflexed side of elytron ; 14. Ambulatorial setse ; 15. Trochanters ; 16. Posterior coxaj ; 

 17. Femora ; 18. Tibia; ; 19. Tarsi. 



Fig. 2. — Under side of prothorax of Ilyclroacapha, with open coxal cavities and, Tr. 

 Trochantin. 



Fig. 3. — Under side of Calosomn. 



Fig. 4.— Uuder side of Rhyssodes. 



