1885. | Ki. T. Atkinson—Notes on Indian Rhynchota. 97 
Genus Turriconta, H. Geoffroy (in part). 
Hist. Ins. p. 429 (1764): Signoret, A. 8. E. F. (2 sér.) i. p. 18 (1852). 
Sienoret (in J. supra c.) reviews the history of the group, first esta- 
blished by Geoffroy, in his work describing the insects found in the neigh- 
bourhood of Paris, under the name Tettigonia. In 1794, Fabricius sepa- 
rated the same group in his Ent. Syst. (iv. p. 27) under the name Cicada, 
and in his Syst. Rhyn. (1803) formed from it the genera Jassus, Flata, 
and Civius. In 1811, Latreille re-established Tettigonia, and, in 1821, 
(Mag. Hnt. iv.) Germar reduced it by creating the genera Gypona, 
Oclidea, and others. In 1825, Lepelletier de ‘St. Fargeau and Audinet- 
Serville (Hnc. Méth. x. p. 600) formed two divisions, Tettigonia for those 
in which the head is rounded beyond the eyes and Proconia for those in 
which the head is conical. In 1829, Latreille (Regne Anim. 2nd ed., 
ii, 221) separated Ciceus from Proconia, and, in 1832, De Laporte de 
Castelneau (A. S. H. F. i, p. 222) formed Germaria and Rhaphidorhinus. 
In 1835, Burmeister (Handb. ii, G) p. 117) restored the Tettigonia of 
Latreille and Germar with four subdivisions, and, again in 1840, Blan- 
chard (Hist. Nat. Ins. iii) admits divisions only. In 1843, Amyot and 
Serville (Hist. Nat. Ins, Hém. p. 569) admit Tettigonia, Germaria, Oiecus, 
Rhaphidorhinus, and Proconia, and add Aulacizes, Diestostemma, and 
Acopsis. In 1850, Spinola (Tav. Sin. Modena) created Diedrocephala 
and Wolfella, and, in the same year, Signoret created Dilobopterus (Rev. 
Zool. (2 sér.) ii, p. 284). In 1851, Fitch formed Helochara for an 
American species, and, in the same year, Walker created Propetes. 
In 1852-54, Signoret (A. S. H. F. (3 sér.) i-iii.) keeps one genus 
and five groups, and notices some 396 species then recorded from all parts 
of the world. Stal, in 1869 (Hem. Fabr. 1, p. 59, note), includes the 
group in his subfamily Jassida and division Proconiida, preserving Ger- 
maria, Ciccus, Diestostemma, Khaphidorhinus, Proconia, and Tettigonia 
and adding a number of his own genera. In 1870, Stal (Ofvers. K. V.- 
A. Forh. p. 733) raises the group to the dignity of a subfamily under 
the name Proconiina. In 1884, Taschenberg (Zeitsch. Nat. Wiss. Halle, 
p. 431) sinks the genera and reviews the whole as one genus with sub- 
divisions running so closely the one into the other as not to afford good 
generic characters. After examining the figures given by Signoret, this 
appears to me to be the most reasonable solution of the difficulties con- 
nected with the arrangement of the insects belonging to this group, 
which now number nearly five hundred. 
30. TELTIGONIA SEMICIRCULARIS, Signoret. 
Tettigonia semicircularis, Signoret, A. S.H. F. (3 sér.) i, p. 348, t. 10, f. 5 (1853) 
Walker, List B, M, Suppt, p. 219 (1858). 
