458 FAMILY VII. TETTIGONIIDJE. THE KATYDIDS. 



dtl. Front and middle femora unarmed beneath; vertex terminat- 

 ing in a rounded tubercle with concave sides; smaller, 

 more slender species, length of body less than 24 mm. 



Subfamily IV. COXOCEPHALIN.E, p. 533. 

 a. Tegmina and wings absent, or the former rudimentary; general color 



gray or brown. 



e. Pronotum extending back to the abdomen; prosternal spines usu- 

 ally present; tegmina present, usually rudimentary; fore tibiae 

 with a hearing organ near the base. 



Subfamily V. DECTICIN^, p. 586. 



ee. Pronotum short, not covering the whole top of thorax; prosternal 

 spines absent; tegmina and wings absent; fore tibiae without a 

 hearing organ near the base. 



f. Byes elongate-ovate, vertical, situated at the side of the basal 

 joint of antennae; ovipositor ensiform, curved strongly up- 

 ward; tarsi depressed, their joints lobed beneath. 



Subfamily VI. GRYLLACRIX.E. p. 602. 



ff. Eyes subrotund, situated partly above the basal joint of anten- 

 nae; ovipositor nearly straight; tarsi compressed, the joints 

 not lobed. Subfamily VII. RHAPHIDOPHORIX.E. p. G06. 



Subfamily T. PHANEROPTERIN^E. 

 THE BUSH AND ROUND-HEADED KATYDIDS. 



The species of this subfamily are among- the largest of our 

 winged Tettigoniida?, and, with those of the Pseudophyllinse, are 

 commonly known as "Katydids." The name Phaneropterinse is 

 based upon the typical old world genus, Phaneroptera Serv., 

 meaning, "visible wing," and refers to the exposed tips of the inner 

 wings which extend beyond the tegmina in repose. They all agree 

 in having the head short, face vertical, or nearly so ; vertex vary- 

 ing greatly in width, the fastiginm either ending in a blunt de- 

 flexed spine or broadly rounded, never projected in front of eyes 

 as a cone or sharp spine; eyes small, variable in form, situated 

 close to and at the side of basal joint of antennae ; pronotum short, 

 its disk flat or concave, more or less narrowed in front, usually 

 meeting at right angles the perpendicular lateral lobes, its pos- 

 terior lobe prolonged distinctly behind them with usually a wide, 

 deep humeral sinus or einargination at the junction; median car- 

 ma wanting or very faint, lateral ones more or less distinct, hind 

 margin broadly rounded, rarely (.hrf/wv/) obtuse-angled; lateral 

 lobes flat, their hind margin and lower posterior angle broadly 

 rounded; lower margin rounded or sinuous, front margin varia- 

 ble; tegmina as described in key, usually a bright uniform green 

 in color; wings long and strong, folded like a fan; meso- and 

 metasterna broadly lobed along their median line; legs variable 



