r 243 ) 



111 coll. Dnux' "J Sri, 1 ? iVoiu Cumcroons. In mic of these S S Hie first 

 (liscal lino of the forewing, ahove, runs across tlie stigma, being mnch more proximal 

 than in the normal specimens. 



10'.). Polyptychus virescens. 



*rsrmh,s„ifniilhus nir^.rii.i Butler, A,/,i. .I/a,/. .V. If. {:>). x. p. Jo.') (lSSi>) (Aburi ;— Miis. IJrit.); 

 Kirby, Gil. Lrj,. Iht. i. p. TiXS. n. 7 (IS'.n'). 



cj. Tongue weak, reaching to end of forecoxa. I'alpus witii <ipeii joint. 

 Antennal segments with straight ventral Dutiine (side-view). Spurs not sjiiiiose, 

 longer terminal one of hindtibia less than half the length of the first tarsal segment. 

 Distal margin of forewing entire, straight ; hiudwing : anal angle not prodnced, 

 D- three times as long as D^ Abdomen like thorax, woolly, the tergites rather 

 densely spinose all over, the spines long, denser at the apices. Clasper without 

 friction-patch. 



Tenth tergite (PI. XXV. f. 7) not divided, the apical half rather abruptly 

 narrowed, forming a jiointed hook, which is, however, not strongly curved down- 

 wards ; sternite mesially membranaceous, laterally stronger chitinised and produced 

 into a slender pointed process (PI. XXV. f. 7, Xv). Clasper sole-shaped ; harjjc 

 consisting of a plate of chitin which is not much raised above the plane of the 

 clasper, but is ventro-distally produced into a very long, slender, strongly 

 chitinised process, which curves ventro-distad and mesiad, protruding beyond 

 the ventral edge of the clasper. Penis-funnel dorsally produced into two pointed 

 processes, resembling the tenth sternite ; penis-sheath with a very peculiar 

 armature consisting of a long, strong, curved "thorn which is almost vertical upon 

 the sheath (PI. XXX. f. 38). 



? and early stages not known. 



H'tb. West Africa : Gold Coast and (,'ongo : doubtless more widely distributed. 



In the Tring Museum 1 <S from the Upper Congo. 



Rare iu collections. 



2011. Polyptychus trisecta (I'l. I. f. .5, 6). 



*Aiiiliiili/.r Irinectii, Aurivillius, Eut. Tkhlcr. xxii. p. ll'J. n. 01 (1901) (Congo, ^ : — Mus. Uruxellcs). 



S. Tongue rather strong, as in rarteri, corj/iidoni, etc. Palpi comjiressed, 

 less broad ajiically in dorsal view than in the allied sjiecies, the joint not distinctly 

 open. Antenna thickest between base and middle, the ventral outline even. Spurs 

 not spinose, very long, long terminal one of hindtibia as long as the tibia. 

 Abdominal tergites not spiny, excepting edges. Distal margin of forewing entire, 

 apex strongly prodnced, hinder angle jn'odnced backwards ; D- of hiudwing not 

 mnch longer than D\ both very obli(pie, D^ nearly twice as long as D*. Clasper 

 and eighth tergite with organ of friction. 



Tenth tergite (PI. XXV. f. lU) very long and very slender, slightly 

 compressed, gradually curved downwards, apex rather obtuse ; sternite (A>) 

 produced into a liroad rounded lobe, which is somewhat constricted basally. Clasper 

 (PI. XXXIII. f. 18) broadly sole-shaped; dorsal half of outer surface ivithout 

 scaling, the naked area covered with dispersed elongate granules, which are smaller 

 and very dense at the incrassate margin of the clasper ; these granules replace 

 the friction-scales of the allied insects ; the eigiith tergite bears a series of large 

 friction-scales on the innerside as illustrated ou PI. LVIII. f. 39 ; the harpe is 



