698 NINE NEW SPECIES OF COLEOPTERA—LIXELL. 



at base, divergent at apex. Leiii^tli, 10 to 1 1 mu\. Nine examples from 

 Main- Island. 



Typv.—y^o. ."iTO, r.S.X.M. 



Cratopus is a genus of Cypliides, allied to the West Indian genus 

 Laehnopuft by the ])rolonged anterior legs and robust femora, but dif- 

 fering by tlie claws being connate at base and thorax truncate, not 

 bisinuate behind. Xumerous species are described from Bourbon and 

 lie de France, and a few from India and South Africa. 



INSECTS FROM ALDABRA ISLAND. 



The onl}- insects from Aldabra Island that I can find recorded are a few 

 Coleoptera by Doctor Fairmaire.' He enumerates five species: Cicin- 

 (lela trihnutris, Klug, var. ; OpatrinKS /».s»^/r/.v, -jNEulsant ; GonoccphaJus 

 micaufi. GeniMW ; Heterodcres conipldiudus^ Klug and ('assida decolorata, 

 Boheman, with var. liiti'd, all of which were previously known from 

 Madagascar. The only new species he describes is Craiopna riridis- 

 2)arsii.s. As will bo seen by the list below, the coleopterous fauna 

 of the island is raised to twelve species through the collection of 

 Doctor Abbott, who has published some very interesting notes on this 

 and (llorioso Island.' 



After I furnished the footnote^ for this paper, additional material 

 was received by the National Museum, as is shown by comparison with 

 the report on the Lepidoptera^ by Doctor Holland, who records thirteen 

 species, two of which he described as new, from this island."' 



The additional material includes two species of Hemiptera — l>ysdir- 

 cus sp., and Harpactor sj)., and raises the number of Coleoptera to 

 seven, as follows: 



1. ERETES STICTICUS, Linnaeus. 



This water beetle has about the same geographical distribution as 

 the buttertly, Dladema mhippus, is likewise rare in the warmer ])arts of 

 America, including (lalaj^agos Islands, and abundant in the Old ^^ orld 

 through Africa and southern Asia to Japan. Doctor Sharp remarks, 

 in his monograi)h of the family Dytiscida', that this species occurs in 

 a larger numl)er of islands than any other Dytiscid. It varies consid- 

 erably in size and markings, but is remarkably constant in structural 

 characters thrcmghout its range. Twelve species of the genus have 

 been described, of which Doctor Sharp has united ten under the above 

 name, but the two Australian forms he considers as distinct under the 

 name E. oustraliN, Frichson. The only example collected by Doctor 

 Abbott on the Aldabra is a female of small size, dark color, and 

 distinct maculation on the thorax. 



'P.ull. Soc. Ent. Fniiue, LXY, 1890, p. 222. 

 - True. U. S. Nat. Mns., XVI, pp. 759-704. 

 ^ Loc. cit., p. 762. 



' Proc. IT. S. Nat. Mns., XVIII, No. 1064, pp. 265-273. 



'• The types of Doctor Holland's spocies, Teracoliix aldahrennis, are iVoiii Mahd 

 Island, but there are seven cotyi>os from .Aldabra. 



