LEPTAULAX. 249 



145. Leptaulax bicolor. (Plate XXIII, fig. 10.) 



Passahis bicolor F., Syst. Eleiith. ii, 1801, p. 256. 

 Leptaulax bicolor Gravely, Mem. Ind. Mus. iii, 1914, pp. 257, 307, 

 pi. 13, fig. 56 ; op. cit. vii. 1918, p. 114. 



The abdomen, and sometimes most of the lower surfaee, is 

 rusty-red. Veiy flat and shining. The front margin of the 

 head bears five e(iuidistant teeth, the second and fourth much 

 longer and more promment than the rest. The median area 

 is broad and almost semicircular. The parietal ridge is wide 

 and comiected with the su])raorbital ridges, which are broad 

 behhid and bluntly toothed in front. The pro7iot urn is strongly 

 and closely punctured at the sides, the lateral margins converge 

 towards tlie front, the lateral groove is strong, the front angles 

 are acute and the hind angles l)roadly rounded. The dorsal 

 striai of the eli/fra are finely punctured, the intervals flat, the 

 lateral grooves strongly punctured, not scalariform. The 

 secondary lateral depression on each side of the metastemum 

 is very coarsely, not densely, punctured and the middle area is 

 smooth. The ventral sternites have each a triangular, finely 

 rugose area on each side, and the last is sometimes entirely 

 rugose. 



Length, 13 to 25 mm. ; breadth, 5-5 to 9 mm. 



Bengal : Bagdogra Range, Kurseong {N. C. Chatterjee, 

 June). A.S.SAM : Lakhimpur, Upper Dihing (C. F. C. Beeson, 

 June). Burma : Mergui (i?. x\\ Parker) ; Kambaiti, N.E. Burma, 

 7000 ft. {R. Malaise) ; Mah Hka, Kachin Hills, 1000 to 2500 ft. 

 {F. Kingdon Ward, Dec). Nicobar Is. : {Rcepstorff, G. Rogers). 

 Madras : Palghat (J. C. M. Gardner, May). Siam. Tonkin. 

 Hainan. Malay Peninsula. Sumatra. Borneo. Java. 

 Philippine Is. Celebes. Gilolo. New Guinea, etc. 



Tijpc in the Copenhagen Museum. 



46. Leptaulax rcEpstorffi. (Plate XXIII, fig. 9.) 



Leptaulax rupstorffi Kuw., Kov. Zool. v,' 1898, p. 288; Gravely, 

 Mem. Ind. Mus. iii, 1914, p. 260, pi. 13, fig. 57. 



Extremely flat and ver}' sliining. The front margin of the 

 head bears four equal and almost level teeth, the two inner 

 ones widely se2)arated, with a minute one between them ; 

 the median area is broad, the supraorbital ridges are toothed 

 in front, broad behind and united with the parietal ridge, 

 which has a well-marked metlian tubercle. The pronotum is 

 rather qiuidrate, the front angles are rather sharp, the hind 

 angles not broadly rounded, the lateral edges rather straight, 

 finely margined, the sides very sparsely punctured, but with 

 rather more numerous punctures near the front angles and 

 a deep pit beyond the middle. The dorsal striae of the elytra 



