( 40 ) 



lies the liarpe, which is comb-like, bearing at its upper edge several large pointeil 

 teetli, the a]iical tooth ])rojccting from the cavit}'. Penis-sheath without external 

 arniatnrp, but with a si)inifiTons flap inside. 



?. Eiglith sterniti,' long; vaginal orifice somewhat transverse, the edge 

 somewliat raised, but without process. 



TIab. West Africa, apjiarently very rare. Besides the three types of buchholzi— 

 lanehe(tiia = ict'iiilfi tliere exists in collections, to our knowledge, the following 

 specimen only : 1 ? Mus. Ro}-. Brnxelles, from Karrongo, Stanley Falls, Upper 

 Congo. 



U'. Poliana uatalensis. 



*Dihulia mihilnisis Butler, Prnr. Zonl. Soi: Lund. p. 1?.. n. 29 (1875) (Natal ; -Miis. Brit.) ; id., 



Trans. Zonl. Svr. Lonit. ix. p. GIG. n. 21. t. 94. f. 5 (1877). 

 Acheroiitia sjwi (! !) Butler, I'roc. Znol. Soc. Loml. p. 13. sub n. 29 (1875). 

 Megimoton nulnlensh, Kirby, Cal. Lep. Het. i. p. 08.^. n. 21 (1892) (Natal). 



cJ?. The species lias somewhat the appearance of very ])a)e individuals of 

 PsUoqnDnmd iwnephrori. There are two lilaclc streaks on the disc of the forewing 

 between R^ and M'-. The first segment of the hiniltar.sns is abont twice as long 

 as the four other segments together. 



$ . Tenth abdominal tergite cleft to middle, the two halves close together, not 

 separately movable as in Psiloyramma, each half elongate, with parallel sides in 

 a dorsal view, jirisraatieally comj)ressed, the underside convex, subcarinate, apex 

 blnut in dorsal, sharp in lateral view ; sternite broad, a little longer than broad, 

 ronnded at end. Clasper long, dorsal margin somewhat rounded, ventral margin 

 shallowly sinuate ; a narrow longitudinal stripe of friction-scales on the onter side, 

 the scales large, broadly ronnded at the end, not erect, dark wax-yellow with brown 

 edges; harpe (PL XXXV. f. 18) with a single process, which is rather short, 

 somewhat twisted, and truncate. Penis-sheath (PI. XXVIII. f :iS) armed with a 

 short, stout, conical tooth, wliich points sinistro-laterad. 

 ? not dissected. 

 Hab. South and East Africa. 



In the Tring Museum 1 S from the Kikuyu Escarpment, British East Africa, 

 January I'.Hil (W. Doherty) ; another from Natal. 



The Kikuyu specimen is more variegated with lirown than the southern 

 individuals which we have seen. 



Butler, l.r., says: Onr example bears a label by the collector bearing the 

 following inscrijition ; " AcJierontia spei S. Only two ? specimens taken in 1857 

 (one of them lost). I have not observed that pecnliar chirping noise ; had they 

 chirped I am sure I would have observed. Query, Does the <? only chirp, and 

 the ? not?— ir. (ji/a." "I Jiave not thought the MS. name apjilicable, and 

 therefore have not used it." 



The reader will have guessed, without being told, that spec, and not spei, is 

 written on the label. However, if Butler mistook spec, for a mannscript name spei 

 which he did not think ajiplicable, why did he publish it ? 



