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altogether membranous, or with a large upper area in large part 

 or altogether membranous, and a lower plate chitinous. First 

 pair of abdominal spiracles situated dorsally within the exterior 

 produced part of the metanotum. Third to eighth pairs situated 

 essentially laterally, and in large part or altogether turning out- 

 wards. 



Ocelli more rarely evanescent, more often two at the sides of 

 the head in front of the antennae ; sometimes a third ocellus 

 is found on the lower margin of the front near the base of the 

 cjypeus. 



Antennae inserted under the eyes; flagellum composed of a 

 thicker basal segment and a very slender "seta," either articulate 

 or altogether divided into numerous segments. Tegula almost 

 always present. Empodium coalesced with the claws through- 

 out a shorter distance, and at most through two-thirds of a 

 length of the claws ; free margin a little emarginate or simple. 

 Second pair of abdominal spiracles dorsal, somewhat remote 

 from t'he lateral margin , .4. Fiilgoridac. 



Two years later. Van Duzee considered that the North Amer- 

 ican Cicadina were composed of nine families, Cicadidae, Mem- 

 bracidae, Fulgoridae, Cercopidae, Ulopidae, Ledridae, Bythos- 

 copidae, Tettigonidae and Jassidae, the last five being collected 

 into a super-family, Ja^ssoidea. The Tettigonidae were divided 

 into Tettigonina and Gyponina; the Jassidae into Acocephalina, 

 Jassina (Dorydini. Deltocephalini, Athysanini. Jassini and Cica- 

 dulini) and Typhlocybina. 



T shall refer later, to Van Duzee's classification of the Jassoi- 

 dea, so tha't I now reproduce the characters for reference. It 

 should however be noted, in fairness to Van Duzee, that he ex- 

 pressly restricts his classification to the North American Fauna ; 

 at the same time, the main points of his scheme are largely in 

 use. 



Superfamily Jassoidca. 



"Ocelli on the face below the anterior edge of the head. 



Family Byfhosco[^idac. 



Ocelli on the disc of the vertex Family Tcfti'^oiudac. 



Ocelli on or near the anterior edge of the head, or wanting. 



Family Jassidae. 



Family Tettigonidae. 



Front large, prominent, strongly convex, cheeks long and 

 narrc^w, anterior edge of the head obtuse, or rounded. 

 Subfamily Tettigonida Berg. 



