324 INSECTS. HKMIPTEBA. 



Gen. CICADA, Oliv. 



Antennae short, placed between the eyes ; head short, broad, 

 applied against the thorax, with the eyes globular and pro- 

 jecting, and three smooth eyes on the top ; forehead convex, 

 often striated, with a cylindrical rostrum bent along the breast, 

 of three joints, of which the first is concealed ; anterior seg- 

 ment of the thorax transverse, the scutellum in relief, and 

 disposed like a St Andrew's cross ; elytra and wings inclined ; 

 abdomen of the male with organs of sound, that of the female 

 with an ovipositor. 



The singular organs of the male, which serve to call the female in the love season, 

 are placed in a cavity of the belly composed of two cells, of which the bottom 

 is composed of thin transparent laminee, which have been regarded as the drums 

 which produce the sound. The larvae are white, with six feet, and leave their nest 

 to bury themselves in the ground, where they feed on the roots of plants. Accord- 

 ing to Aristotle the Greeks used these insects as an article of food, both in their 

 larvae and perfect state. 



C. hcematodes, Oliv. Thorax black; the scutellum yellow, raised in 

 the form of a St Andrew's cross ; abdomen black, with yellow 

 rings ; elytra much longer than the abdomen, transparent, with 

 the posterior margin and the nerves at their base reddish or green- 

 ish ; wings transparent ; operculi black, bordered with yellowish ; 

 feet yellow, with black spots. 2^ inches long. Inhabits south 

 of Europe. Lat. Gen. iii. 154. 



TRIBE II. FULGORELL,E. 



With two ocelli ; antennnae composed of three joints, the ter- 

 minal seta compressed, inserted under the eyes ; front often 

 prolonged in the manner of a beak or rostrum. 



I. No palpiform appendages at the base of the rostrum. 



Gen. FULGORA, PLATA, RICANIA, (Germ. ;) P^ECILOPTERA, ACHILUS, Is- 

 sus, LISTRA, TETTIGOMETRA, DELPHAX, ASIRACA. 



II. With palpiform appendages at the base of the antennae. 



Gen. OTIOCERUS, COB AX. 



Gen. FULGORA, Lin. Lat. 



Tarsi with three joints ; antennae inserted under the eyes, of two 

 or three joints, of which the last is large and globular, with a 

 tubercle surmounted by a seta; rostrum long, of two or three 

 apparent joints ; elytra and wings sloping ; feet of medium 

 length, with the posterior legs armed with spines ; tarsi ter- 

 minated by two hooks or by a ball. 



The insects of this genus are remarkable for the beauty and variety of colours 

 which ornament their elytra and wings, and by the form of the head, which is sin- 

 gularly varied in different species. The species which inhabit Cayenne emit a light 

 so strong that by its means the smallest characters can be read at night. 



F. latermna, Lin. Front advanced, vesicular, rounded at its extre- 

 mity, furnished on its sides with four rows of spiny flattened tuber- 

 cles of a reddish colour ; thorax pale yellow ; elytra of the same 

 colour, with the nerves and streaks black ; wings grayish, with a 



