246 PA^-SALID^. 



Assam : Mawphlong, Khasi Hills (Gopi Bam, April) ; Naga 

 Hills (0. C. Olknback, April) ; Manipur (W. Doherty) ; Mishmi 

 Hills, 4840 ft. {Miss M. Steele, Dec). Burma : Adung Valley, 

 6000 ft. {Lord Cranbrook, June) ; Ruby Mnes {W. Doherty) ; 

 Kambaiti, 7000 ft. {R. Malaise) ; Dikrang, Dafla Hills 

 {E. T. Atkinson). 



Type in the Indian Museum, Calcutta. 



Subfamily Passaltx^. 



Body generally more or less depressed or flattened, the sides 

 and the middle and hind tibise sometimes thickly clothed 

 with coarse hair. Front coxse not very prominent, distinctly 

 separated by the prosternum. Club of the antenna generally 

 composed of three long and three short lamellae. Head 

 Avithout distinct cljqieus, the front margin bearing two or four 

 marginal processes, often asymmetrical. Mandibles with 

 movable tooth. Labium broad, the ligula enclosed by the 

 lateral lobes of the mentum, the labial palpi with the 2nd joint 

 dilated and the terminal joint usually reduced. 



Key to the Genera of Passalin^, 



1 (4) Antennal club 3-jointed. 



2 (3) Lamellae of the antennal club 



long Leptaulax Kaup, p. 246. 



3 (2) Lamellae of the antennal club 



short Pleurarius Kaup, p. 250. 



4 (1) Antennal club composed of six 



joints. 

 .5 (12) Supraorbital ridges of the head 

 united behind. 



6 (9) Inner lobe of the maxilla double. 



7 (8) Base of the mentum with lateral 



grooves Pelopides Kuw., -p. 252. 



8 (7) Base of the mentum without lat- 



eral grooves Tiberioides Grvl., p. 253. 



9 (6) Inner lobe of the maxilla single. 



10 (11) Pronotum without bristles at 



sides Epi,sphe)uiti Kaup, p. 255. 



11 (10) Pronotum with bristles at sides. . .4 cera«(/A" Kaup, p. 259. 



12 (5) Supraorbital ridges of the head 



not waited behind Macrolinus Kaup, p. 263. 



Genus LEPTAULAX. 



Leptaulax Kaup, Col. Hefte iii, 1S6S, p. 11 ; Gravelv, Mem. Ind. 

 Mus. iii, 1914, p. 302 ; o;j. aY. vii, 1918, p. 112. 



Type, Passalxs dentatns F. 



Range. The Indo-Malayan and Papuan Regions. 



Body flattened, almost devoid of hair except upon the legs 

 and antennae ; the middle and hind tibia? witli only scanty and 

 inconspicuous fringes. Club of the antenna composed of three 



