ORIENTAL CICADIDJF,. 41 



mediate a character that I have preferred keeping it for the present as a subspecies or simple 

 variety of B. rufivcna. Should the last supposition prove correct, we have in D. rujivena 

 a species which not only varies in colour, but also much more largely in size. 



3. Dundubia locusta. (Tab. IX., fig. 1, a, b.) 



Cepluilo.cys l,icusUi, Walker, List Horn. i. p. 230, n. 7 (1850). 



Moijanniu locusta, Atkins. J. A. S. Beng. vol. liii. p. 233, n. 91 (1885). 



Body brownish-ochraceous ; ocelli red ; eyes fuscous ; posterior and lateral margins of pronotum 

 paler in hue ; mesonotum with two obscure obcouical spots on anterior margin, their outer edges black, 

 and a small dark spot near each anterior angle of the basal cruciform elevation ; lateral margins of the 

 abdomen above paler in hue and ornamented witb a segmental series of black spots. Body beneath paler 

 in hue ; the bead beneath, sternum, legs and opercula ocbraceous. 



Tegmina and wings pale hyaline, the venation and the costal membrane of the first ocbraceous. 



Tbe opercula extend to about half the length of the abdomen, are concavely constricted on each side 

 near base, and are then convesly rounded and moderately ampliated, tbe apex broadly rounded. The 

 body is somewhat elongated and tbe head narrowed. 



Long. excl. tegm. <? , 3-4 milhm. ; 2 , 30 millim. Exp. tegm. 83 millim. 



Hab.— Continental India (Wooler— Brit. Mus.) ; Bombay (Leitb— coll. Dist.). 



The narrowed head— a character which probably induced Walker to place the species in 

 the genus CV/)/(a/o.ri/s— will easily separate D. locusta from the other species of Dundubia, and 

 the elongated body is also another distinctive character. 



This species seems to have a limited distribution, as four specimens, two males and two 

 females, collected by Dr. Leith at Bombay, and now in my own collection, are the only examples 

 I have seen, excepting the type in the British Museum. 



4. Dundubia rafflesii.* (Tab. IV., fig. 4, a, h.) 



Dundubia rajflcsii, Distant, Proc. Zool. Sec. 1883, p. 188. 



Head and body above ocbraceous, moderately and palely pilose. Eyes pale brown, mottled witb 

 fuscous, ocelli bright castaneous; posterior and lateral margins of pronotum greenisb-ocbraceous ; 

 mesonotum witb two central pale and subobsolete obconical spots situate at anterior margin, witb an 

 obscure pale fuscous oblique streak on each side. Body beneath and legs ocbraceous; opercula reaching 

 the third abdominal segment, slender, concavely constricted on each side near base, and then agam 

 convexly widened to apex, which is rounded; rostrum about reaching posterior cossb, with its apex 



narrowly fuscous. 



Tegmina and wings pale hyaline ; veins and costal membrane of tegmina ocbraceous. 



Long. excl. tegm. S , 30 millim. Exp. tegm. 73 millim. 



Hub.— Java (coll. Dist.). 



This species is allied to D. rujivena, Walk., but differs by its much more slender opercula, 

 which are not perceptibly broader at the apex than at the base, being quite the reverse of 

 what obtains in D. rujivemx. 



5. Dundubia emanatura. (Tab. YIII., fig. 3, a, b.) 



Dundubia emanatura. Distant, Ann. & Mag. Nat. Hist. ser. 6, vol. iii. p- 51 (1889). 



Pronotum above either greenish or ocbraceous. Abdomen ocbraceous. Head witb a narrow, 



reticulated, linear, transverse, black fascia between tbe eyes enclosing the ocelh and a black spot at 



* The name of Sir Stamford Raffles is indelibly connected with two great zoolofjical enterprises. He foUowed and 

 fostered the study of Natmal History in the East,— especiaUy in Java,— and may be said to have created the great 

 Zoological Society of London. 



