562 Mr. G. T. Bethuue-Baker 07i neiv 



Diatomineura neavei, Austeu. Other striking differences, to 

 which it is here unnecessary to refer^ also exist, and no one 

 who compares the types of these two species can have the 

 slightest doubt that specifically they are absolutely distinct. 

 The designation Pangonia austeni, Beq., must therefore be 

 cancelled. 



Silvius schoutedeni, Beq. (p. 231), nom. nov. for Silvius 

 fallax, Austen (Bull. Ent. Res. iii. p. 113, August 1912). — 

 The change in nomenclature here proposed by Dr. Bequaert 

 is due to a suggestion long ago tentatively put forward by 

 Loew (^ Dipt. -Fauna Siidafrika's,^ p. 21, 1860), and recently 

 definitely adopted by Surcouf (' jStude Mon. cles Tabanides 

 d'Afrique/ p. 206, 1909), namely that Tabanus fallax, Macq. 

 (Dipt. Exot., Suppl. i. p. 32, 1846), — a species the type of 

 which was stated to be from Caffraria — is a Silvius. If this 

 were so, the designation Silvius fallax, Austen, would of course 

 be a homonym. Tabanus fallax, Macq., however, is not a 

 Silvius, but belongs to an at present undescribed genus 

 allied to Hinea. There is consequently no necessity for a 

 change of name, and Silvius schoutedeni, Beq., is a synonym 

 oi Silvius fallax, Austen. 



LXIX. — Descriptions of new Species of Lepidoptera from 

 Africa and the East. By G. T. Bethune-Baker, 

 F.L.S., F.Z.S. 



HypsidsB. 

 Digama hudonga^ sp. n. 



(^ . Head, palpi, and thorax neutral grey, spotted with 

 blackish ; abdomen yellow, with black dorsal spots ; ventral 

 surface pale straw-colour, witli a lateral row of black spots. 

 Primaries neutral grey, with blackish markings that largely 

 cover the entire surface ; the basal area is almost entirely 

 mottled over with black, leaving but little grey visible ; it 

 miglit be described as having three parallel black stripes 

 confluent with each other ; outside these is a black dot in the 

 cell with all the veins black, a postmedian strongly angled 

 stripe, much blotched, especially on the fold, a subterminal 

 deeply angled and serrate black stripe more or less confluent 



