EXPLANATION OF THE PLATES. 609 



FIG. 



42. > Eyes compound and stemmata of Cercopis. Stemmata 

 intraocular. 



43. Eyes simple, dorsal. Phalangium. 



44, 45. Claw-joint of tarsus of Lamia, to show the arthrium. 



46. Vespa Crabro. 



47. Tarsus of Entimus imperiatis. a. The rotula or ball re- 



ceived by the socket of the tibia. 



48. The penultimate bilobed joint of ditto, with the arthrium 



separated from the claw-joint. 



49. Part of the claw-joint so separated, a. Muscles which 



enter the arthrium. 



PLATE XXVII. a 



J. Head of Cordylia Palmarum'. a a. Muscles fixed in the 

 myoglyphides or muscle- notches. 



2. dpoderus Coryli. 



3. - Buprestis acuminata. 



4. Copris. a. Muscles. 



5. Elater. a a. Corneous scales analogous to pax- 

 wax, attached to the depressor muscles, like those of 

 Geotrupes. VOL. IV. p. 183. 



6. . tibia. Cordylia Palmarum. 



7. End of thigh, ditto, next the tibia. 



8. Dynastes. VOL. III. p. 671. note 8 . 



9. Head of tibia of ditto. 

 10. Copris buceplialus. VOL. III. p. 670. 



1 1 . End of thigh, ditto, next the tibia. 



12. Middle coxa. Melolontha vulgaris. a. The open part 



which receives the muscles. 



13. Posterior ditto, ditto, a. The open part. 



14. Head of posterior thigh of ditto. 



15. End of ditto next the tibia. Gryllus. 



16. Head of tibia of ditto. VOL. HI. p. 669. 



17. Lateral view of ditto. 



18. of the head of the coxa of Lamia, a. The 



* VOL. III. 526, 661. 



VOL. IV. 2 R 



