58 Annals of the South African Museum. 



Natal,' Victoria district (W. D. Gooch), type in coll. S. Afr. 

 Mus. Also from Durban in various collections. 



GEN. CONCHYLIA Guen. 



15. CONCHYLIA LAMELLATA, sp. uov. 



g. 30 mm. Head and body white, somewhat mixed with brown. 

 Palpus more brown, quite short, not extending as far as frons. 

 Antenna thick, merely lamellate, with minute ciliation. 



Foreiving very glossy white, with slender brown markings ; costal 

 streak thread-like at base, gradually widening from before middle of 

 wing, in distal part bounded by front of areole and SO 4 ; a slender 

 longitudinal stripe from base, bounded anteriorly by cell-fold, becom- 

 ing still slenderer distally, where it joins the outer stripe in front of 

 R 2 ; outer stripe thread-like at apex, then broadening slightly, straight 

 and oblique to M 2 at 2 mm. from termen, here obtusely bent, thence 

 very faintly sinuous, very gradually approaching hindmargin, finally 

 running along behind SM 2 and not quite reaching base ; a brown 

 terminal line ; fringe proximally brown, distally white. Hindwing 

 white. Forewing beneath smoky, the markings obsolescent. Hind- 

 wing beneath as above, the costal edge slightly sniokv. 



Cape, Port Elizabeth, 1900 (O. West). 



Very similar to nitldula as figured in Cramer (Pap. Exot. iv, 240, 

 t. 399 N),* but distinguished by the antenna, etc. Should be 

 referred to the sub-genus Callythria "YVeyin. (type alter-not a Warr., 

 Nov. Zool. viii, 209 ; argenteofasciata Weym., Deutsch. Ent. Zeit. 

 1908, p. 512), but probably Conchylia will have to sink to Lithostcge 

 Hb., in which case the non- pectinate section will stand as name-typical, 

 with Callythria as synonym, the pectinate as sub-genus Conchylia 

 Gueu. The glossy scaling and distinctive pattern are scarcely generic, 

 especially as Conchylia irene Prout (Nov. Zool. xxii, 336) and Lithostege 

 decor at a Warr. (Ann. S. Afr. Mus. x, 23) and sesq-iiifascia Prout (Ann. 

 Trsv. Mus. iii, 262) in some respects furnish intergrades. 



16. CONCHYLIA ACTENA, sp. uov. 



c?. 29 mm. Face and palpus light brown. Crown white. Antenna 

 apparently nearly as in the preceding (somewhat damaged with 



' .1 have seen no example agreeing with this figure in having the outer stripe 

 obsolete at apex, but provisionally (following Warren in Tring Mus.) refer to 

 nitidula an otherwise similar species, with shortly pectinate antenna, which 

 occurs in Cape Colony and Natal ; in any case the figure clearly shows the 

 pectinate antennae. 



