XXIV 



Mimetic Grasshoppers. — Dr. G. A. K. Marshall, on 

 behalf of Mr. B. P. Uvarov, exhibited some remarkable 

 mimetic long-horned grasshoppers with their Cicindelid 

 models from Java and Celebes, pointing out that the mimetic 

 resemblance is present in the larval stages only. 



A Moth with a Stridulatory Apparatus. — Dr. K. 

 Jordan exhibited a pair of the Agaristid moth, Aegocera 

 mahdi Pagenst. (1903), from East Africa and drew attention 

 to the hitherto unknown c^". This sex has a stridulating organ 

 in which the hind-wings and hind-legs participate. The 

 wing-portion of the organ consists of an elongate semivitreous 

 stripe occupying the greater part of the cell of the hind- 

 wing; on the underside the subcostal vein is swollen and 

 non-scaled, projecting much more than in the $ and being 

 slightly curved. In the hind-leg the first tarsal segment is 

 likewise swollen and bears on the upperside a naked stripe 

 on which a number of very shallow transverse grooves are 

 visible. The structure renders it evident that during flight 

 this tarsal segment plays across the inflated subcostal of the 

 hind-wing. No observations on the sound produced have as 

 yet been made by the collector of the specimen (W. Feather). 



Dr. Jordan added that last summer he had had an oppor- 

 tunity of examining Pemphigostola synemonistis Strand (1909) 

 placed by Strand in the Castniidae as a new sub-family and 

 referred to in our Proceedings of 1921, p. xxxiv, as probably 

 being an Agaristid. This opinion proves to be correct. 

 Pemphigostola is a genus of Agaristidae belonging near Aegocera. 



Dr. Jordan further exhibited a number of specimens of the 

 interesting Lycaenid, Liphyra hrassolis Westw. (1864), from 

 various localities and a (^ oi the second species of the genus, 

 L. castnia Strand (1911), obtained in the Hydrographer Mts., 

 British South-East New Guinea. L. castnia is distinguished, 

 inter alia, by its more rounded hind-wing, very short palpi 

 and the transverse position of the black patch on the underside 

 of the fore-wing. 



Dr. S. A. Neave gave an account of the fauna of Mt. Mlanje, 

 Nyasaland, and illustrated his remarks with lantern slides 

 and with an exhibition of some typical insects from that 

 locality. 



