( 130 ) 



that species a triangular, mesially incised sternite which bears two hairy lougitudiiiiil 

 folds on the nnder surface. 



:?. Polyptychus cymatodes spec. nov. (Text-fig. 4). 



cj. r. falcato R. & J. (11)03) siiuilis, major, aiiteuuis miilto breviuribiis 

 gracilioribnsqiie, alaram anticarnm lineis transversis multo raagis undulatis seu 

 dentatis, liiiea discali collulae subapproximata valde crenata. 



Long. al. aiit. 39 mm. 



2 SS, one from Ilesha, S. Nigeria, ti/pe (L. E. H. Humfrey), the other from 

 Bibianaha, Gold Coast, TO miles N.W. of Dimkwa, 700 ft, November 27, 1010 

 (H. G. F. Spurrell) ; in Mus. Brit. 



Grey, the palpi, umlerside of forewing and ujiperside of hindwing more or less 

 washed with fuscous, as is also the upperside of the forewiug from the inner discal 

 line to the margin. Body stout, without markings. Antenna of the same type as 

 in P. retiisxs R. & J. (lOOS), short and slender for such a large insect, almost 

 sotiform, prismatical, the sides not dentate. I'alpi a little smaller tlian iti the cJ of 

 falcatus R. & J- (1903), much less broad distally than in retusus, joint open. 

 Tongue short and slender, if rolled np not visible between the palpi. Legs as in 

 falcatus, the spurs being very much longer than in retusus. 



Forewing more strongly falcate than in fulcatus S , the distal margin excised 

 in front of vein M-, hind angle more strongly lobate than in falcatus; subbasal 

 double dot small ; a band of three antemedian transverse lines as in falcatus, but 

 the lines more broken at the veins ; discocellular spot faint ; the interspaces 

 between the three jiroximal diseal lines narrow and filled in with fnscons, so that 

 a narrow fuscous band is formed, which is, on the proximal side, rather decjjly 

 indented on all the veins and much more shar2)ly defined than on the distal side ; 

 about halfway between the proximal edge of this band and the distal margin a 

 dentate line, followed nearer the margin by a row of faint dots; the markings at 

 the excision of the hiudmargiu not quite so prominent as in P. muriitus Roths. 



(1904). Anal angle of hindwing more j)rodnced than \a falcatus, at M' a distinct 



tooth ; a dentate median line and halfway between it and the distal margin a more 

 strongly dentate one, both about ]iarallel with the margin : at anal angle traces of 

 two more lines and f'urtlier costally some faint subniarginal dots ; fringes pale. 



Underside with dentiite lines in the outer half, as usual in tiiis group of sjiecies ; 

 on the forewing three discal ones near one another, rather diffuse and almost 

 straight, the inner one of them slightly curving distad at the costal margin and 

 the outer one costad, the interspace between this baud of lines and the postdiscal 

 line not (juite so wide as the interspace between the first and third discal lines, 



distal margin grey, this colour almost sharply bounded anteriorly by SC*. 



Hindwing paler than forewing, with a row of minute submarginal dots and two 

 fairly ])rorainent lines, between which there are traces of two more lines. 



Eighth abdominal tergite without a ribbon of friction-scales inside, the clasper 

 likewise without friction-scales. Anal tergite almost gradually narrowed, being an 

 elongate-triangular process, distinctly curved downward in the centre and then 

 gently upward, the tip, which is rounded-truncate, being slightly bent down again ; 

 the njipcr surface with a deep median groove from the base to beyond the centre ; 

 the underside of the process convex. Anal sternite absent as a distinct sclerite. 

 Clasper (test-fig. 4) long and narrow, strongly widened basally on the ventral side ; 



