226 PERCY SLADEN TRUST EXPEDITION 



punctured, except near the front margin, where the punctuation becomes somewhat 

 obsolete. Thorax densely and finely punctured, a high power showing very small punctures 

 scattered between the larger ones ; very little explanate at the sides towards the anterior 

 angles. The elytral sculpture is analogous to that of Oxyomus palmarum, with which it 

 may be compared. Each elytron has 8 longitudinal cariruB in addition to the elevated 

 sutural and outer margins : but they are only moderately elevated and almost equally 

 developed throughout ; only on the sloping outer part of the elytron is there a faint trace 

 of the alternate ridges being more elevated than those between them, a condition which 

 is carried to so high a pitch of development in 0. palmarum. Interstices regularly 

 punctured, a shallow groove running from puncture to puncture as in O. palma^'um ; the 

 surface of the interstices on either side of the punctures is minutely rugulose. Interval 

 between the 8th carina and the outer margin broad, corresponding to two interstices, 

 between which there is no definite carina except near the apex, where a sharply-elevated 

 apical ca7'ina is developed. This apical carina curves round the apical part of the 

 elytron so that it almost meets the end of carina 1 (nearest the suture), and it projects so 

 much as to render the true apical margin of the elytron hard to see. CarincB 2 — 8 are of 

 different lengths, terminating before the apex of the elytron. Length of elytron about 

 If mm., of wing about 2| mm. Mesosternum closely punctured in front, the part 

 between the middle coxae keeled. Central part of metasternum somewhat elevated and 

 finely punctured, only slightly impressed in the middle, much flatter than in O. palmarum. 

 Abdominal segments finely punctured. Claws of tarsi minute, equal. 



Loc. Seychelles. 8 specimens : 7 were found between the bases of the leaves of a 

 growing $ Coco-de-Mer palm {Lodoicea sechellarum), which was felled and examined 28. 

 XI. 1908, in the Coco-de-Mer forest in the Vallde de Mai, Cotes d'Or Estate: the 8th 

 specimen was found in the same locality on the same date, but whether from a palm-tree 

 is not specified. 



7. Atcenius f rater, Arrow. 



Atcenius frater Arrow, Trans. Ent. Soc. London, 1903, p. 512. 



This species was described from a series obtained in St Vincent and Grenada 

 (W. Indies). It has since been found to occur also in the East, a specimen from Singa- 

 pore being in the British Museum. I obtained two specimens in Mah^ which agree 

 closely with those from the West Indies. In this species and the allied A. strigicauda 

 Bates a high-power lens reveals the existence of a network of extremely fine strise 

 between the punctures on the thorax. 



Loc. Seychelles. Mahe : Cascade Estate ; low country ; neither specimen is from 

 the endemic mountain-forests. Also W. Indies and Singapore. 



Saprosites Eedtenbacher, Faun. Austr., 2 ed. 1858, p. 436. 



8. Saprosites laticeps (Fairmaire). 



Psammodius laticeps Fairmaire, Ann. Soc. ent. France, ser. 5, i. 1871, p. 34. 

 Saprosites laticeps AUuaud, Liste Coldopt., p. 241 ; Kolbe, Mitt. Zool. Mus. Berhn, 

 v. 1910, p. 22. 



