TETTIGONIELL.V. 201 



Ir. "Vertex with two oblique oari- 

 iiatioii'* commencing' at inner 

 margins of eyes and united a 



little before apex Bundkua, p. 228. 



C-. Vertex with two tine longitu- 

 dinal ridges which angularlj^ 



diverge at base Mainda, p. 229. 



i\ Vertex centrally broadly sulcate . . Pisacha, p. 230. 

 b. Anterior margin of pronotum semi- 

 circularly rounded and produced be- 

 tween eyes. 

 a^. Pronotum subconvex, not ridged. . SiGxN'oretia, p. 232. 



6\ Pronotum strongly ridged PKETA,p. 234. 



c. Face foveate Atkinsoniella, p. 235. 



B. Wings nearly twice as broad as tegmina, 



their apices truncate SoibanctA, p. 23G. 



Genus TETTIGONIELLA. 



Tetigonia, Geoffr. Hist, ahr&j. des I/i6. i, p. 429 (1798-99), uom. 



prajocc. 

 Tettigonia, Sir/n. Ann. Soc. Ent. Fr. 18.53, p. 323 ; StSl, Hem. Fah: 



ii, p. 01 (1869) ; Van Duzee, Trans. Am. Ent. Soc. xxi, p. 271 



(1894). 

 Tettigoniella, JacoJd, Zool. Jahr. Syst. xix, p. 778 (1904), n. nom. 



Type, T. viridis, Linn., a Paltearctic species. 



Distribution. Almost universally distributed. 



Vertex anterioi-ly convexly or subangularly produced, the 

 lateral margins in a line with tlie inner margins of the eyes ; face 

 moderately globose, neither carinate nor foveate, moderately 

 elongate, lateral areas transversely striate ; pronotum longer than 

 vertex, the anterior margin more or less convex, posterior margin 

 truncate ; scutellmn somewhat small, transversely impressed 

 before the apical area ; tegmina longer than abdomen, apical areas 

 five ; posterior tibiae longly spinulose. 



Kirby (Proc. R. Dublin Soc. vi, p. 580 (1890)), first drew 

 attention to the fact that the generic name Tettigonia, Linn. 

 (1758) must be restricted to the Orthoptera, and in his 'Syn. Cat. 

 Orthop.' ii, p. 212 (1906) he places it iu the family Phasgonuridce. 

 Kirkaldy has claimed that Tetvjonia, Geoffr. is unused and should 

 be employed. This claim is untenable for two I'easons: — (1) In 

 any case Tetigonia is practically synonymous with Tettigonia, and 

 (2) Geoffroy refers to Eeaumur, who (Mom. v, p. 150) spells the 

 word Tettigonia, which tends to prove that Geoftroy's name is 

 only a misprint. Geoffroy also refers his Tetigonia to a small 

 species which he identifies with Cicada roso', Linn., and procigale, 

 Keaum., which appears to be the Typhhcyha rasa', auct. 



Jacobi has with good reason altered the name Tettigonia to 

 Tettigoniella, and has in error stated that Geoffroy used 'Tetigonia 

 for Cicada viridis, Linn., but this species may nevertheless be 

 accepted as the type of 'Tettigoniella. Kirkaldy has now added to 

 the confusion he previously created by stating (Canad. Ent. 



