178 GUY A. K. MARSHALL. 



rather strongly curved, strongly punctate at the base, and there rather more squamose 

 and with the median carina a little more prominent in the <$ ; the antennal insertion 

 at (?) or a little beyond the middle (cJ). Antennae with joint 2 of the funicle a 

 little longer than 1, the remainder progressively diminishing and all longer than broad 

 except 7, which is as long as broad and bead-like : the club very elongate, as long 

 as the 51 preceding joints, cigar-shaped. Prothorax broadest at the base, the sides 

 gently rounded, not constricted at the apex ; the dorsum strongly and closely 

 punctate, without any median carina, the spaces between the punctures flat, shiny and 

 impunctate ; the scales large and subcircular, but scarcely overlapping, those in the 

 middle of the disk smaller and exposing more of the integument ; the very broad, erect 

 spatulate setae truncate at the apex. Scutellum almost circular, slightly convex and 

 densely clothed with small scales. Elytra ovate, broadest at the shoulders, which 

 form a rounded, obtuse angle, and scarcely impressed before the apex ; the compara- 

 tively small punctures almost hidden by the dense scaling, each one being covered by 

 a large scale and set in shallow striae ; the intervals a little broader than the striae, 

 not carinate on the disk, but rather convex and somewhat rugulose or subgranulate, 

 especially towards the base, only interval 9 carinate in the posterior half ; the scales 

 closely overlapping, and each interval with a row of very stout, erect, scale-like 

 setae," these being more numerous on intervals 2, 3 and 5. Legs with uniform pale 

 brown scaling and recumbent setae, the latter being erect only along the dorsal 

 edge of the tibiae ; the dorsal edge of the femora straight and the inferior tooth 

 small ; the tibiae markedly narrowed from base to apex, and with no angulation 

 externally at the apex. 



Length, 6 mm. ; breadth, 3 mm. 



Punjab : Rani Range, Siwalik Hills, bred from logs of Butea frondosa, iv.l918 

 (C. F. C. Beeson). 



Described from 8 specimens. 



In the S the last visible ventrite has a shallow impression at the apex, with a 

 small tubercle on each side of it bearing a single seta ; in the ? this ventrite bears 

 a shallow transverse impression at a little distance from the apex. 



From the three previously described Indian species of the genus, centrini/ormis , 

 consputus and parens (Faust, Ann.Mus. Civ. Geneva, xxxiv, 1894 (1895), pp. 289-90) 

 the present species may be distinguished by the common pale V-shaped mark on 

 the elytra and by its tapering tibiae. R. centrimformis and consputus also differ, 

 inter alia, in having all the setae recumbent, interval 3 on the elytra strongly carinate 

 on the declivity, the dorsal edge of the posterior pairs of femora markedly sinuate, 

 the seventh ventrite (last visible) of the S without tubercles, tergite 7 of the S almost 

 truncate at the apex and 8 densely squamose (in huteae 7 of the ^ is deeply sinuate 

 at the apex and 8 is bare and shiny). R. parous differs in having the pronotum 

 granulato-punctate, the scutellum is punctiform and shiny, the punctures on the 

 elytra bear only a fine seta instead of a broad scale, and the intervals are narrowly 

 carinate. 



In this genus the stridulatory apparatus of the (^ consists of the usual files towards 

 the apex of the elytra near the suture, the scraper being formed by two very minute, 

 short transverse carinae on the apical edge of the seventh tergite, which are very 

 easily overlooked. In the ? the files are on the seventh tergite, instead of on the elytra, 

 and are composed of comparatively widely separated longitudinal striae, the ridges 

 between them being very finely and transversely striate. The apparatus in both 

 sexes is similar to that found in the European Cryptorrhynchus lapathi ; the statement 

 made by Dr. C. J. Gahan (Trans. Ent. Soc. Lond. 1900, p. 450) and repeated by 

 myself (Fn. Brit. India, Curcuhonidae, i, p. 17), that there are no stridulatory organs 

 in the $ of this species is erroneous. 



