102 CICADID^. 



and face, apex o£ rostrum, apices of tibiae, and margins of 

 opercula (broadest at apices) black or piceous ; abdomen beneath 

 very pale castaneous, with some piceous discal spots ; tegmina and 

 wings hyaline, venation pale fuscous : tegmina with the costal 

 membrane ochraceous, and the transverse veins at the bases of 

 the second and third apical areas inf uscated ; abdomen sparsely 

 finely pilose. 



Length excl. tegm., cJ , 35 to 38 ; exp. tegm. 85 to 90 millim. 



Hah. Assam ; Margherita {Doherty), Naga Hills (ChenneU). 

 Sylhet (Brit. 3It<s.). — Malay Peninsula. 



Opercida in male not reachinr/ 2)enult{mate abdominal segment ; 

 tegmina unspotted. 



1590. Platylomia similis. Did. (Dundubia) A.M.K. H. (6) i,p.292 



(1888) ; id. (Cosmopsaltria) Man. Orient, dead. p. 45, t. v, 

 f. 10, «,6(1889). 



Head and thorax above pale greenish ; abdomen pale castaneous ; 

 head with the area of the ocelli somewhat piceous ; pronotum with 

 the edges of the posterior margin and the inner edge of the 

 anterior margin black ; mesonotum with a central black longi- 

 tudinal linear fascia, on each side of which is a short oblique 

 black fascia outwardly margined with ochraceous, followed by a 

 small anterior black spot, and with two black spots in front of 

 cruciform elevation ; abdomen above with a short, broad, oblique, 

 cretaceously tomentose fascia on each side of basal area ; body 

 beneath, opercula, and legs pale greenish or greenish-ochraceous ; 

 rostrum with the apex black and reaching the posterior coxae ; 

 tegmina and \^ings hyaline, the venation greenish-ochraceous, in 

 some places black ; costal membrane of tegmina greenish. 



Lengtii excl. tegm., c? , 50 : exp. tegm. 122 millim. 



Hah. Sikhim and Assam {Ind,. Mus.). 



This species above has a strong superficial resemblance to 

 r. radlia, Dist., which is described on p. 105. 



Opercida in male someivliat narroiv and reaching penultimate 

 ahdominal segment ; tegmina unspotted. 



1591. Platylomia larus, Wall-. (Dundubia) List Horn. Suppl. p. 7 



(1858) ; Dist. (Cosmopsaltria) Man. Orient. Cicad. p. 44, t. v, 

 f. 1, a, b, and var. t. iv, f. 13 (1889). 

 Cicada — "The Knife-grinder," Emerson Tejinent, Nat. Hist. Ceyl. 

 p. 432, fig. (1861). 



Head and thorax above greenish-ochraceous ; abdomen above 

 and beneath pale castaneous ; head ^A■ith the lateral areas of 

 front, area of ocelli, an augulated fascia in front of eyes, and a 

 small spot near inner margin of each eye black; pronotum with 

 two central longitudinal, posteriorly connected fasciae, on each 

 side of which is a short curved discal fascia, the incisures, and 

 edges of lateral margins black ; mesonotum with five fasciae (one 



