Seychelles and Rangoon. 17 



last of the French Governors of the Se}xhelles, who served 

 the Monarchy, the Republic, the Empire, and, finally, the 

 British Government. 



Sericoderus, Stephens. 

 (PI. II. figs. 13-17.) 



Subgenus Anisomeristes (Matthews). 



Anisomeristes, Matthews, Ent. Mo, Mag. xxii. 1886, p. 225 ; Mon. 



Corylophidfe, p. 108. 

 Sericoderus, pars, Reitter. 



Anisomerihtes, treated by Reitter, and here, as a subgenus 

 of Sericodfras, is separated from true Sericoderus by having 

 11-jointed instead of 10-jointed antennjB. Otherwise tiie 

 species of the two subgenera are closely alike, and it is 

 impossible without examination of the antennae to decide in 

 which of them any particular form should be placed. 



The difference is caused by the fusion of two joints — joint 3 

 and the succeeding one — in Sericoderus, s. str. But in some 

 species at least of this subgenus there is a fine transverse 

 line on the third joint, showing where the division would be 

 if it were present. Fig. 17, made from a balsam-preparation, 

 shows the antenna of a British specimen in the Crotch Col- 

 lection placed as S. lateralis ; fig. 17 a shows the elongated 

 third joint more highly magnified, and it is clear, both from 

 the shape of the joint and the presence of tlie transverse line, 

 that it is made up of two joints fused. Figs. 16, 16 a illus- 

 trate the antenna of S. (-4.) pubipennis, Sharp (Haw'aiian 

 Islands), and figs. 15, 15 a give that of S. (A.) seychellensis, 

 sp. n. In pubipennis the separation of the joints is complete, 

 but not so marked as in seychellensis ; in pubij^ennis the two 

 joints fit together very closely, while in seychellensis the 

 distal one is distinctly narrowed at its base. The condition in 

 S. {A.) pubipennis, therefore, seems to be transitional be- 

 tween that in S. {A.) seychellensis and that in S. (s. str.) late- 

 ralis. The antennae also exhibit other differences in length 

 and in the proportions of the joints inter se. But appear- 

 ances are sometimes deceptive, and much depends on the 

 exact position in which the antenna is lying in the balsam. 



In many descriptions o( Sericoderus spp. no mention is made 

 of the antennae, and the subgeneric position of some species 

 is not satisfactorily established. Owing to this inadequacy 

 of descriptions, it is hard to say exactly how certain described 

 species are related to the Seychelles form. I have named the 

 latter S. {A.) seychellensis, though it may possibly prove to 



Ann. ds Mag. N. Hist. Ser. 8. Vol. xix. 2 



