DESCRIPTION OF THE FIGURES. 



1. Larva of the Cockchafer (Melolontha) 



2. Larva of Cetonia. 



3. Larva of Trox. 



4. Larva of Oryctes. 



5. Larva of Aphodius. 



6. Larva of Lucanus. 



7. Larva of Brachytarsus. 



8. Larva of Crioceris. 



9. Larva of Sitaris humeralis. 



10. Larva of Sitaris humeralis, in the second stage. 



11. Larva of Sitaris humeralis, in the third stage. 



12. Larva of Sitaris humeralis, in the fourth stage. 



13. Pupa of Sitaris. 



14. Larva of Sirex. 



15. Egg of Rhynchites, showing the parasitic larva. 



1 6. The parasitic larva, more magnified. 



17. Egg of Platygaster. 



1 8. Egg of Platygaster, showing the central cell. 



19. Egg of Platygaster, after the division of the central cell. 



20. Egg of PJatygaster, more advanced. 



21. Egg of Platygaster, more advanced. 



22. Egg of Platygaster, showing the rudiment of the embryo. 



23. Larva of Platygaster. mo, mouth; a, antenna; kf 9 hooked feet; 



;-, toothed process ; Ifg 9 lateral process ; f 9 branches of the tail. 



24. Larva of another species of Platygaster. (The letters indicate the 



same parts as in the preceding figure.) 



25. Larva of a third species of Platygaster. (The letters indicate the 



same parts as in the preceding figure.) 



26. Larva of Platygaster in the second stage. mo, mouth ; sikj 9 



oesophagus ; gsae, supra-cesophagal ganglion ; lm, muscles ; 

 bsm 9 nervous system ; gagk, rudiments of the reproductive glands. 



27. Larva of Platygaster in the third stage. mo, mouth; md y man- 



dibles ; gsae 9 supra-cesophagal ganglion ; slk 9 oesophagus ; ag, 

 ducts of the salivary glands ; bum, ventral nervous system ; sp y 

 salivary glands ; msl 9 stomach ; im, imaginal discs ; tr 9 trachece ; 

 fk 9 fatty tissue ; ed 9 intestine ; ga 9 rudiments of reproductive 

 organs ; ew 9 wider portion of intestine ; ao 9 posterior opening. 



28. Embryo of Polynema. 



29. Larva of Polynema. asch 9 rudiments of the antennae; flsch 9 of 



the wings ; bsch 9 of the legs ; vfg 9 lateral projections ; gsch 9 

 rudiments of the ovipositor ; fk, fatty tissue. 



