22 



oiM iior ri-:i\.\ 



with six rami; axillary vein quadri-raniose, the first and second rami ])arall('lim; tlu' mari^m, the third 

 and fourth traversing the anal told. \\ nii^s h\ aline, except along the antei inr margin and at the aprx ; 

 apex blunt and not markedly produced: anal emargination slight, nbtuse-angulate; discoidal vein iorkcd 

 at two-thirds its length from the base. Anterior limbs long and slender: anterior coxfe expanded for 

 full\' the apical thiid ot their anterior crest into a conspicuous dentate foliaccous lobe: anterior femora 

 narrow, slightly snruate (hirsally, the apex produced inti) a sujnagenicular spine, unter maigin with hve 

 spines, inner margin with eleven, (hscoidal spines tliree in number; anterior tibia' straight, paucispinose, 

 terete above. Posterior legs long and slender, carinate and lobate and furnished with curved acicular 

 genicular spines longer than the genicular lobes, the lateral ones of which aie longei than the dorsal. 



Geographical distribution of species, — A single species is known trom the 11 imala\an 

 subregion of the Oriental region. 



I. E. redivenis, Wood-Mason, fourn. Asiat. Soc. Bengal. Vol. 58, Pt. 2, Kangra, Himala\as. 

 p. 3i7 (1889). 



20. Genus >£THAL0CHR0A, Wood-Mason 



/Ethalochroa. Wood-Mason, .A nn. Mag. Xat. Ilist. (4). \ ol, icj, p. 3o8 (iSj^): Journ. Asiat. Soc. 



Bengal, \'ol. 58. p. 3io (1889). 

 Arsacia. Stal, Bihang Svenska \'et.-Akad. l^'hli. Vol. 4 (loj, ]>. 70 (1877). 

 Arsaria. Brunner von Wattenwyl, Ann. Mus. Stor. Nat. Genova. \'ol. 33, j). 74 (1893). 

 Arteria. Kirby, Syn. Cat. ()iih. \'ol. i, p. 3o8 (1904). 



Characters. — Sexes alike. Body greatly elongate, bacilliform. Head not wider than the dilation 

 ot the pronotum, rather higher than broad; occiput concave; vertex divided h\ grooves into fi\e lobes, 

 two lateral, which are conoidall}' produced, two submedian, which are not alwa\s produced, and one 

 median lobe which is a low transversely convex elevation of c onsitlerable extent, terminating abruptly 

 immediately above and behind the ocelli, sometimes produced on the median line in a simple or bitid 

 horn; ocular margins of the forehead with a small si)iniform tubercle: ocelli large, placed on a triangular 

 tubercle: eyes higher than broad, strongly prominent, tumid, and furnished dorso-laterally with a 

 conical non faceted spine or at least a vestige of the same ; facial shield pentagonal, dorsal margin slightly 

 produced in the middle: antenna- short, setaceous. Pionotum greath' elongate, granulöse, strong!}- 

 tectate with a distinct continuous median carina in the female and a mesialh" interruptetl one in the 

 male: shaft slighth^ bowed: supracoxal dilation large, rotund-angulate : lateral carina' shaiply gran- 

 ulöse. Second to sixth abdominal segments carinate vcntrally, seventh or eighth emarginate ventrally: 

 dorsum of the abdcmicn longitudinalh- carinate; cerci broadl\- foliaceous, spatulate. rounded or rotund- 

 ato-truncate at the apex. Organs of flight when closed haidh- extending beyond the fifth abdominal 

 segment; marginal areas subcoriaceous, semi-opaque: posterior areas membranous and hyaline; tegmnia 

 with the basal third of the costal field rather sharph dilated and covered with dense, sharply defined 

 and prominent polygonal reticulations: wings with iinbranched discoidal vein and a distinct anal 

 emargination. .Anterior cox;e triquetrous, their cariiKc, especiall}' the posterior, granuloso-spinulose, 

 the anterior expanded at the apex into a short foliaceous lobe; femora with their dorsal margin concave, 

 cristate at the apex, their ventral margins armed externalh' with five spines and internall} with twelve 

 to fourteen alternately shorter and longer spines, discoidal spines three in number; tibia^ weak, curved, 

 slightl}' enlarged toward either end from the thin median section, terete dorsally, except for a faint crest 

 distally, paucispinose, being armed only on the apical fifth of external margin and on the apical lialf ot 

 internal margin, terminal claw long and rather ahrujitlv hooked. Posterior limbs rather short, strongly 



