40 ORIENTAL CICADIDM, 



■ Closely resembling typical D. mannifera, but differing by the somewhat shorter opercula, a slight bronzy 

 tinge to the apices of the tegmina in the male, and by the central mesonotal spots being outwardly 

 margined with black. 



Long. excl. tegm. <? & 2 , 30 millim. Exp. tegm. 85 to 92 millim. 



Hab. — Continental India: North Khasi Hills, 1500 to 3000 feet (Chennell — coll. Dist.). Malay 

 Peninsula : Perak (coll. Dist.). 



The female, typical and only specimen in the British Museum, is smaller than the above 

 dimensions given of two specimens in my own collection. After careful comparison and 

 consideration, I incline to the view, that this specific creation of Walker is but another varietal 

 form of D. mannifera* 



2. Dundubia rufivena. (Tab. VI., fig. 6, a, h.) 



Dundubia rufivena, Walker, List Horn. i. p. 59, n. 19 (1850). 



This species is closely allied to -D. mannifera, Linn., but differs by its constantly smaller size and by 

 the different shape of the opercula, which are much more coiicavely narrowed near base and then convexly 

 widened on each side. 



Long. excl. tegm. <? & ? , 24 to 81 millim. Exp. tegm. 61 to 81 millim. 



Hab. — Malay Peninsula: Penang (Biggs — coll. Dist.); Province Wellesley (coll. Dist.). Sumatra 

 (Bruss. Mus. ; Ludeking — Leyden Mus.; Beccari— Genoa Mus.). Nias Isld. (coll. Dist.). Java (Dresden 

 Mus., Bruss. Mus. ; V. Eyndh & Piepers — Leyden Mus.) ; Kederi (Baron Von Hiigel — coll. Dist.). Sumbawa 

 (V. Lansberg^Lej'den Mus.). Borneo: Sarawak (Beccari — Genoa Mus.) ; Elopura (Pryer — coll. Dist.) ; 

 South-East District (Doherty — coll. Dist.). Moluccas: Amboyna (Bruss. Mus.). 



This species, like B. mannifera, varies in hue from pale green to dark ochraceous, but 

 unlike that species, I have been unable to trace its distribution to Continental India. 



2 a. Dundubia mellea, n. sp. ? or D. rufivena, var. ? (Tab. XII., fig. 9, a, h.) 



S . Head, pronotum and mesonotum brownish-ochraceous, ocelli pale ochraceous, eyes pale 

 castaneous; front with some obscure black lateral strias ; mesonotum with two short faint central 

 obconical spots, and a larger obconical spot on each lateral area ; base of cruciform elevation dark 

 castaneous ; abdomen above and beneath and the opercula golden-yellow, margins of the opercula more 

 or less shaded with black; head beneath, sternum and legs dull ochraceous, tibiee and tarsi pale 

 castaneous. 



Tegmina and wings pale hyaline, the first with the costal membrane and basal portion of the 

 venation bright ochraceous, remaining venation darker ; wings with the venation ochraceous, in some 

 Ijortions infuscated. 



The rostrum extends to about the intermediate coxfe ; the opercula are somewhat short, concave on 

 each side near base and rounded at apices, which about reach the base of the fifth abdominal segment ; 

 anterior femora and posterior tibiae spined. 



Var. a. Head, pronotum, and mesonotum pale greenish, the abdomen ochraceous. 



Long. excl. tegm. 33 millim. Exp. tegm. 80 millim. 



Hab. — Borneo: Western District (Brit. Mus.). Elopura: Pryer (coll. Dist.). 



I was at first inclined to consider this form, from its very distinctive coloration, as an 

 undescribed species, but have since found other specimens from Northern Borneo, of so inter- 



* This question of varieties and species still remains in a very open condition, as Mr. Bouverie-Pusey has stated it : — 

 " One school made varieties lesser species, the other made species (not to say higher divisions) only better marked varieties." — 

 (' Permanence and Evolution,' p. 5). 



