722 EXPLANATION OF THE PLATES. 
_ 
. Head of Pulex, with its antennz and trophi, or rostrulum. 
Side view. 
— Araneide, with the trunk. 
. Trophi of ditto. 
. Head of Scolopendra morsitans. Subface. 
— Front view, to show the 
mouth. 
. Trophi of ditto. 
. Pharynx of Pentatoma, (Savigny.) 
PLATE VIII. 
. Prothorax of Lucanus. a. Apex. b. Base. c d. Sides. 
a. Disk. 
. Antepectus of ditto. 
. Alitrunk of ditto. Upper side. a. A piece between the 
metathorax and metaphragm. 
Under side. 
. Abdomen. Upper side, or tergum. 
— Under side, or venter. 
. Antepectus of Hydrophilus piceus. 
. Alitrunk of ditto. Under side, to show the metasternum. 
. Abdomen of Dynastes Aloeus, to show the dorsal and 
ventral spiracles. 
. Prothorax of Locusta. a. Apex. b. Base. cc. Sides. 
. Antepectus of ditto, to show the prosternum. 
. Alitrunk of ditto. Upper side. 
———. Under side. 
Lateral view. Vot. III. p. 48. 
Abdomen of ditto. Lateral view. 
. Alitrunk of Cicada Latr. Upper side. 
— Under side. a. The piece in the 
? corresponding to the drum-covers of the @. 
. Abdomen, and part of postpectus of ¢ ditto. Under side, 
to show the drums. Vou. I. p. 401—. 
« 
* Vor. III. p. 8366—, 527—. IV. p. 385—. 
