106 ORIENTAL CICADIDM. 



Face with a narrow but distinct central sulcation ; the rostrum reaching the posterior coxae. 



Long. excl. tegm. ^ , 35 to 37 milHm. Exp. tegm. 85 to 92 millim. ^ 



Hab. — Continental India : Sikkim (Gale. Mus.) ; Nepal (coll. Dist.) ; Darjeeling (Stoekh. Mus.). 



This is a moderately scarce species, and it seems almost confined to the province of 

 Bengal. 



4. Gaeana hageni. (Tab. IX., figs. 8, a, b.) 



Gteana hageni, Distant, Ann. & Mag. Nat. Hist. ser. 6, vol. iii. p. 50 (1889). 



3- . Body olivaceous-brown. Head with the lateral margins of front, pronotum with two oblique, 

 irregular, linear spots on each lateral area, and a small central spot at base, blackish. Mesonotum with 

 two central, obconical, castaneous spots at anterior margin. 



Tegmina pale greenish ; the costal membrane, a somewhat broad apical margin irregularly waved 

 internally, a rounded spot at base of third apical area, and the apical half of inner margin (narrowly), 

 dark brownish. Wings pale bluish-green, the apical and outer margins — not reaching base — narrowly dark 

 brownish. 



Eostrum not quite reaching the posterior coxre. Face large and tumid, the transverse striations 

 coarse and prominent, central sulcation only prominent at about centre. 



Var. a. 



Tegmina with two dark brownish spots, one at base of third apical area, and another, smaller, at 

 base of fifth apical area. 



Long. excl. tegm. ^ , 32 millim. Exp. tegm. 82 millim. 



Hab. — Malayan Archipelago : Sumatra, Tandjong Morawa, Serdang (Dr. B. Hagen — Leyden Mus. 

 and coll. Dist.). 



The tympanal coverings in this species are somewhat larger than with other members of 

 the genus ; the tympana, however, are still exposed, and the other characters are strictly those 

 of Gceana. 



5. Gaeana festiva. (Tab. III., figs. 18, a, h.) 



Tettifionia festiva, Fabricius, Syst. Ehyng. p. 41, n. 41 (1803). 



Cicada thalassina, Guer. & Perch, Gen. des Ins. Hem. t. 2 (1834) ; Guer. Voy. Coq. Ins. p. 183 (1838). 

 Gceana consobrina, White, MS.* 



Cicada Percheronii, Guer. Ic. regne An. Ins. p. 355 (1838). 



Gceana festiva, Stal, Berl. Ent. Zeit. x. p. 170, n. 1 (1866) ; Hem. Fabr. ii. p. 5, n. 1 (1869) ; Atkins. J. A. S. 

 Beng. vol. liii. p. 222, n. 36 (1885) ; ibid. vol. Iv. p. 157, n. 28 (1886). 



(? . Body above black ; ocelli, eyes and a broad fascia behind them reddish-ochraceous ; margins of 

 pronotum and four discal fasciae to mesonotum— of which the two central ones are angulated and connected 

 with the anterior angle at the basal cruciform elevation — greenish-ochraceous. Body beneath and legs 

 black ; apical half of face and a spot between face and eyes reddish-ochraceous. 



Tegmina greenish-ochraceous ; the radial area, a transverse fascia crossing centre from apex of radial 

 area, near which is a large triangular spot, apex and outer and inner margins, and two small spots 

 near base, blackish. The black area at apex is more or less broken, sometimes including a small greenish- 

 ochraceous spot. Wings pale bluish-green ; the apex broadly black — containing a pale bluish spot — and 

 the margin continued more narrowly black to anal angle. 



The face is coarsely transversely striate, and broadly sulcated at base. 



Long. excl. tegm. 3 , 30 millim. Exp. tegm. 77 millim. 



Hab. — Continental India : Sikkim (Gale. Mus. and coll. Dist.) ; Darjeeling (Stoekh, Mus.). 

 Malayan AEcmPELAgo : Sumatra, Loeboe gedang (Sumatr. Exped. — Leyd. Mus.). 



* Not in Proc. Zool. Soe. 1850, as recorded by Walker (List Horn. i. p. 254), but a MS. name only. 



