INSECT A TRANSVAALIENSIA. . 77 



Genus POLYPTYCHUS. 



Polyptychiis, Hiibner, Verz. bek. Sclimett. p. 141 (1822?); Hamps. Fauna Brit. India, Moths, vol. i. 



p. 68 (1892). 

 Marumba, Moore, Lepid. Ceylon, vol. ii. p. 8 (1882). 



24. Polyptychus posticus. (Tab. V., fig. 17.) 



Basiana pnsticii, Walker, Cat. Lepid. Heteroe. Brit. Mus. viii. p. 237 (1856) ; Boisd. Spec. G6n. Lepid. 



Heteroc. i. p. 50(1875); Wallengr. Ofv. Vet.-Ak. Forh. 1875, p. 9i; Kirby, Syn. Cat. Lepid. 



Heteroe. vol. i. p. 702 (1892). 

 Smennthtis Bianchii, Obertli. Ann. Mus. Genov. xviii. p. 734, pi. ix. fig. 8 (1883). 

 Ambulyx postica, Dist. Ann. Mag. Nat. Hist. (6) vol. xis. p. 579 (1897). 



Hab. — Transvacal; Pretoria (Distant). — Natal; Durban (Gueinzius ; Brit. Mus.). 



Common around electric lamps during the summer season at Pretoria. "Walker, quoting 

 information received from Natal, writes, " Gives out sounds, resembling those of a Lamia,* 

 for minutes together."! 



25. Polyptychus piabilis. (Tab. IV., fig. 2.) 



Ambulyx piabil is, Distant, Ann. Mag. Nat. Hist. (6) vol. xix. p. 580 (1897). 



Hab. — Transvaal; Pretoria (Distant). 



A very scarce species. I only took one (the type) during my four years' residence in 

 Pretoria, nor did I meet with it at all at other parts of the Transvaal which I visited from 

 time to time. Neither has it since been sent me by any of my entomological correspondents. 



26. Polyptychus grayi. (Tab. VI., fig. 14.) 



Smerinthus grayii, Walker, Cat. Lepid. Heteroc. Brit. Mus. viii. p. 249, u. 11 (1856) ; Boisd. Spec. Gen. 



Lepid. Heteroc. i. p. 26 (1875). 

 Polyptychus f/rayii, Butl. Trans. Zool. Soc. Lond. vol. ix. p. 584 (1877) ; Dist. Ann. Mag. Nat. Hist. (6) 



vol. xix. p. 579 (1897). 



Hab. — Transvaal; Lydenburg District (Zutrzenka). — Natal; Durban (Ross). 



I am informed by Mr. A. Ross that at Durban the larva of this species feeds on Cordia 

 cafra (plant determined by Mr. J. Medley Wood). 



27. Polyptychus consanguineus. (Tab. III., fig. 3.) 



Polyptychus consanyuinctis, Distant, Ann. Mag. Nat. Hist. (7) vol. ill. p. 179 (1899). 

 Hab. — Transvaal ; Lydenburg District (Zutrzenka). 



Genus LOPHOSTETHUS. 



Lophostethus, Butler, Trans. Zool. Soc. Lond. vol. ix. p. 385 (1877). 



28. Lophostethus dumolini. (Tab. VI., fig. 18.) 



Sphinx dumolinii, Cuvier, Regne Auim. iii. pi. xx. fig. 1 (1830) ; Angas, Kaff. Illustr. pi. xxx. fig. 11 (1849). 

 * A Longicorn Beetle. f Cat. Lepid. Heteroc. Brit. Mus. viii. p. 237 (1856). 



