ORIENTAL CICADID.E. iS 



The opcrcuLa are long, about reaching the penultimate segment of the abdomen, concavely constricted 

 on each side near base, and with their apices narrowly rounded. 



Long. excl. tegm. 3 , 32 to 38 millim. Exp. tegm. 84 to 100 millim. 



Hah.— Continental India : Bombay (Leith— coll. Dist.) ; Neelgiri Hills, Koonoor GOOO ft. (Hampson— 

 coll. Dist.). Ckylon (Templeton — Brit. Mus.). 



There can l)e no doubt that this is the species figured by the late Sir J. Emerson Tennent, 

 in his 'Natural History of Ceylon,' and named by him "The Knife-gi-inder," and which he 

 describes as " resting high up on the bark of a tree, make the forest re-echo with a long-sustained 

 noise so curiously resembling that of a cutler's wheel that the creature producing it has acquired 

 the highly appropiate name of the ' Knife-grinder.' " * 



4. Cosmopsaltria bocki.f (Tab. IV., fig. 11, a, h.) 



Duiidubia bocki, Distant, Enfc. Mouth. Mag. vol. xis. p. 159 (1882). 



Head and thorax above dull ochraceous or olivaceous: abdomen, above and beneath, castaneous. 

 Head with the area of the ocelli black ; eyes castaneous, speckled with ochraceous. Pronotum with two 

 small black spots at centre of anterior margin, the lateral and posterior margins somewhat paler, the last 

 inwardly and outwardly narrowly edged with black. Mesonotum with two central, contiguous, obconical 

 spots, their bases situate on anterior margin, the outer margins very pale and bordered outwardly at 

 base— and inwardly— broadest at apex— with black ; four sub-basal black spots situated one on each side 

 of the anterior angles of the basal cruciform elevation, which is somewhat paler. T\nnpana ochraceous. 

 Head beneath, rostrum, sternum, legs, and opercula ochraceous ; apex of rostrum black ; anterior tibi», 

 bases, apices, and a subapical annulation to intermediate and posterior tibiae, fuscous. 



Tegmina and wings pale hyaline ; tegmina with the veins and costal membrane dull ochi-aceous, and 

 the claval area inwardly margined with dark fuscous; wings with most of the veins dull ochraceous, 

 a few being fuscous. 



The body is elongate ; the face is prominent and globose, transversely wrinkled and with a deep and 

 broad central longitudinal sulcation ; the opercula are long, about reaching the penultimate abdominal 

 segment, concavely constricted on each side near base, and then broadened and convexly rounded, the apex 

 being broad and rounded. 



Long. excl. tegm. 3 , 44 millim. Exp. tegm. 123 millim. 



Hab. — Sumatra (Bock — coll. Dist.). 



5. Cosmopsaltria similis. (Tab. V., fig. 10, a, h.) 



Dmdubia similis, Distant, Ann. & Mag. Nat. Hist. ser. 6, vol, i. p. 292 (1888). 



Head and thorax above pale greenish ; abdomen pale castaneous. Head with the area of the ocelli 

 somewhat blackish ; eyes castaneous, mottled with fuscous, posterior margin very narrowly ochraceous. 

 Mesonotum with a central black longitudinal Unear fascia, on each side of which is a short obli«iue black 

 fascia, which is crossed and partly obliterated by a narrow curved ochraceous fascia ; a black spot near 

 each anterior angle of the basal cruciform elevation. Abdomen above with a short, broad oblique fascia of 

 greyish-white pile on each side at base. Head beneath, sternum, legs and opercula pale greenish or 

 greenish-ochraceous. Abdomen beneath pale dull castaneous ; apex of rostrum black. 



Tegmina and wings pale hyaline, the venation greenish-ochraceous, in some places black ; costal 

 membrane of the tegmina greenish. 



* ' Natural History of Ceylon,' p. 432. 



t KameJ after Carl Bock, author of ' The Head Hunters of Borneo," &c., and by whom this species ^as captured. 



N 



