248 PERCY SLADEN TRUST EXPEDITION 



which I have before me o£ sechellarum Kolbe and pulchellus Dejean. It maybe that later 

 work has shown that the presence or absence of this tooth Is not a rehable generic 

 character, or has in some other way modified the hmits of the genus Siopelus : but though 



1 have searched the works of several authors, I have not succeeded in finding statements 

 of any such modification, and therefore I do not feel justified in going contrary to 

 Murray's diagnosis of Siopelus. The following species are therefore placed under Hypoli- 

 thus, with the reservation that this placing is intended to be only provisional. 



32. Hypolithus pavoninus, Gerstaecker. 



Hypolithus pavoninus Gerstaecker, Arch. Naturg., xxxiii. 1867, i. p. 23 ; Kolbe, Abh. 

 Senckenb. Ges., xxvi. 1902, p. 572. 



As stated below, I have seen no named specimen of H. pavoninus, and it is with some 

 doubt that I refer to that species a single $ from Aldabra : its elytral sculpture is certainly 

 not so fine as in the typical H. sechellarum and the elytra are a little longer. 



Log. Aldabra (Voeltzkow) ; ? 1 ^, ] 907 (Thomasset). German East Africa and 

 Mozambique. 



33. Hypolithus sechellarum (Kolbe). 



Siopelus sechellarum Kolbe, Mitt. Zool. Mus. Berlin, v. 1910, p. 17. 



I am much indebted to Professor Kolbe for kindly lending me a typical specimen of 

 this species for purposes of comparison. Previously to seeing it I had identified my series 

 as H. pavoninus Gerstaecker, of which I have seen no named specimen, and which seems to 

 be very close to sechellarum. Professor Kolbe tells me that sechellarum is distinguished 

 from pavoninus by the somewhat finer sculpture of its elytra, and by having the whole 

 body, and particularly the elytra, shorter. By comparison with the typical specimen, the 

 specimens from the Seychelles, the Amirantes, and Farquhar Atoll, are referred without 

 doubt to H. sechellarum : but I am not quite so certain about the specimens from 

 Coetivy, in one of which the elytral sculpture does appear slightly coarser than in the 

 typical specimen. 



1 have examined the wings of 2 specimens, a $ from Mahe and a $ from Coetivy, and 

 found them nearly twice as long as the elytra. 



Loc. Seychelles: Mahe; Mamelles, June — July (Brauer) ; 4 ?, 1908 — 9. Amirantes: 

 •Eagle, 1 ^, 1 ?, 1905. Farquhar Atoll : 2 ^, 4 ?, 1905. Coetivy : 2\?, 2 ?, 1905. 



34. Hyiwliihus pulchellus, Dejean. 



Hypolithus jndchellus Dejean, Spec. Col., iv. 1829, p. 181 ; AUuaud, Liste Coleopt., 

 p. 34. 



2 specimens ; I am indebted to Monsieur Lesne, to whom I sent one, for the identifi- 

 cation. Judging from Dej can's description I think the dark bluish -green colour on the 

 elytra must be extended and the light testaceous colour consequently reduced in these 



2 specimens (as compared with those originally described), so that the sutural and lateral 

 dark patches are united with one another. 



Loc. Aldabra: 1907 (Thomasset). Cosmoledo : 1907 (Thomasset). Madagascar. 

 Africa ; originally described from Senegal. 



