294 Mr. H. E. Andrewes on Oriental Cambidue. 



and sparsely punctate. The front fascia is wide at the 

 margin and just reaches the shoulder ; it contracts and 

 almost disappears on interval 10, widens again over 7 and 8, 

 contracting and disappearing on 5. The hind fascia is 

 similar outwardly, but inwardly it extends over interval 4. 

 The testaceous apical area sends an arm forward along inter- 

 vals 7-9 ; the green colour extends nearly to apex along 

 intervals 1 and 2. 



Underside smooth and glabrous ; presternum in front of 

 coxse, its episterna at base, and the prosternal plate with a 

 few punctures, last-named bordered at sides, subocnlar ridge 

 well marked, extending inwards rather beyond buccal fissure, 

 the area between it and the eye longitudinally striate. The 

 first two joints of the front tarsi and the first joint of the 

 intermediate tarsi are dilated in the $ . 



I have compared examples of this species with a specimen 

 in my collection taken by Pere Cardon at Nowatoli in Chota 

 Nagpur, which (though I have not had the opportunity of 

 comparing it with the type) I identify with 0. guttdum, 

 Chaud. The new species is larger, more nearly circular, 

 but otherwise very similar both in form and pattern, though 

 in C. guttatum the latter is more clearly defined. Head 

 more roughly sculptured, more coarsely punctate, clypeal 

 suture with an angle in the middle, instead of semicircular, 

 subocular ridges similar ; sides of prothorax more rounded, 

 base flattened, surface more coarsely but less punctate ; 

 intervals of elytra more convex, surface more shiny, front 

 fascia extending inwards to interval 5 only (in guttatum it 

 reaches 4), hind fascia and testaceous apical area wider, the 

 latter with a more jagged front margin ; punctures on 

 prosternum and its episterna fewer. 



Annam : Keng Trap. Tonkin : Tranninh. Laos : Ko 

 Kieng (R. Vitalis de Sahaza), 5 ex. The type is in the 

 British Museum. 



In the genus Omophron there is usually present beneath 

 the head on each side a subocular ridge. This runs inwards 

 and a little forwards from near the side of the head and 

 extends as far as the buccal fissure or even beyond it. The 

 area between the ridge and the eye is somewhat depressed 

 and rugose or punctured. In 0. limbatum, ¥., the ridge is 

 short and inconspicuous, the area in front of it coarsely 

 punctate. In the species just described the ridge is very 

 evident, the front adjacent area longitudinally striate, 

 without punctures. I mention this character, as I find it a 

 variable one and I think it may possibly prove useful for 

 purposes of classification. 



