1 10 Explanation of the Plates. 



Fig. 4. cc. Different views of the Mandibular c. Interior face of 

 ditto, a. Apex. h. Base, or orbicular transverseh- 

 sulcated Mola. 



c. Lateral view of Mandible. 



d. The Maxilla, a. The Base. b. The Apex. c. Exte- 



rior maxillary Palpus. 



e. The Mentum. 



f. The Antenna. 



g. Portion of anterior Tibia, a. Its two Teeth, 

 h. of posterior ditto, a. Its Calcaria. 



i. Prosternum. 



k. Metasternum. a. Anterior Mucro, looking to the 

 Head. 



b. Posterior ditto, looking to the Anus. cc. Poste- 

 rior Coxae. 



1. Last joint of posterior Tarsus, to show the Claw. 

 5. Agrion Brightwelli. . 



VI. Some 



