ILLUSTRATIONS. 



I 'age. 

 Plate I. Fig. 1. — Cicada in the act of feeding. Figs. 2 and 3. — Section? of bark 



and wood showing beak and seta? of Cicada inserted 92 



TEXT FIGURES. 



Fu;. 1 . f'o7ie}ii/li(isU's tmisiciiH: egg, larva, an<l \)U\yd 114 



2. i'onrliiiUadea miisirii>:: head and nioutii ])arts 114 



4 



