1898.] F11OM BRITISH BAST AFRICA. 423 



151. GrNAMPTOlSTX TREFOLIATA, sp. 11. 



General aspect of an Acronycta, but belonging to the quadrifid 

 group of Noctuidce. Primaries earthy brown, sprinkled all over 

 with pale lavender scales ; an ill-defined, dusky, oblique costal 

 streak entering discoidal cell just above the orbicular spot, which 

 is whitish, outlined in black ; the reniform stigma is represented 

 by a large irregular black-edged marking, not unlike a hawthorn or 

 trefoil leaf with the mid-rib directed inwards to below the orbicular 

 spot ; an oblique costal streak at apical fourth, external border 

 ashy lavender, its inner margin widely and deeply sinuated 

 between costa and first median branch, but diffused below the 

 latter ; a vague indication of a dusky annulus on inner margin 

 near external angle ; a series of small black submarginal spots ; 

 fringe whitish, sprinkled \yith earthy-brown scales ; secondaries 

 sericeous white with a very faint fleshy tint ; the external area 

 dust greyish ; a marginal series of black dashes : fringe white at 

 base, greyish externally : head brownish grey, collar less brown, 

 ashy in front and at the sides ; thorax ashy ; abdomen huffish white 

 irrorated with grey. Wings below white, slightly huffish and 

 irrorated with dark brown scales on costal and apical areas ; a 

 marginal series of blackish spots ; secondaries with a dusky spot 

 on upper discocellular : body below sordid huffish white ; front of 

 pectus, palpi and legs above brownish irrorated with blackish, the 

 tarsi with white tips to the joints. Expanse of wings 60 millim. 



Between Voi and Ndi, 2nd June, 1897. 



Unfortunately only one example of this species was obtained. 

 I am indebted to Sir George Hampson for pointing out its 

 affinities; despite its dissimilarity from the type of his genus 

 Gnamptonyx, it corresponds with it so closely in structure that I 

 have no doubt of its correct location. 



152. BANIANA INTORTA. 



Baniana intorta, Swinhoe, Trans. Ent. Soc. 1891, p. 150 ; 

 Hampson, 111. Typ. Het. ix. pi. 163. fig. 3. 

 $ , Taru, 23rd November, 1896. 



New to the Museum from Eastern Africa, though we have it 

 from Natal and Accra. 



153. COLBUSA PENTAGONAL1S. 



Colbusapentagonalis, Butler, P. Z. S. 1894, p. 589, pi. xxxvii. fig. 8. 

 Samburu, 7th November, 1896. 



A larger and better example than the type, and therefore a 

 desirable acquisition. 



154. TRIGONODES HTPPASIA. 



Phalcena-Noctua hippasia, Cramer, Pap. Exot, iii. pi. ccl. E 

 (1782). 



Mbuyuni, 25th April; between Voi and Ndi, 20th & 22nd 

 May ; Voi, 26th June, 1897. 



r 29] 



