SCOTT— COLEOPTERA, LAMELLICORNTA AND ADEPHAGA 233 



base ; anterior margin only about ^ as broad as the base, reflex ed, straight or shghtly sinuate 

 in the middle, the angles and sides rounded ; surface slightly elevated in the middle, densely 

 and rather coarsely punctured with some setiferous punctures. Frons just above the 

 suture shining, and with a group of strong setiferous punctures on either side ; upper part 

 of head dull and more finely punctured. Prothorax over 1 J times as broad as long, rather 

 narrowed in front, finely margined, the sides rounded and hind angles rounded right off, 

 the base sinuate on either side of the middle and the median portion margined with 

 closely-placed minute hairs ; surface finely punctured, distinct setiferous punctures 

 numerous, especially along the front and side margins, setse along the side margins 

 specially conspicuous and outstanding. Scutellum with punctures bearing small hairs. 

 Elytra at the base about as broad as the thorax, behind the middle about IJ times as 

 broad as the thorax ; striae rather broad, alternate ridges a little more elevated, but none 

 of the ridges are sharply defined or more than slightly elevated. Ridges impunctate, but 

 striae bearing numerous fine punctures, so that the elytron as a whole appears densely 

 punctured ; setiferous punctures forming a regidar series along the inner edge of each stria, 

 placed rather close together in the series and each having a little graimle or prominence in 

 front of it. Apical angle of each elytron bearing a small group of setae. Pygidium 

 bearing numerous setae, larger and smaller ; its sides strongly converging, apex sub- 

 truncate. Hind coxae bearing long setae near the base, hind femora bearing short setae on 

 the surface and a rather close series along the hind margin. Abdominal segments each 

 with two irregular transverse rows of setae. 1st joint of hind tarsus a little shorter than 

 joints 2 and 3 together ; inner apical spur of hind tibia situated further forward than the 

 base of the tarsus, over ^ as long as the 1st tarsal joint. 



Log. Aldabra : Takamaka, XL and XII. 1908 ; some are recorded as having come to 

 light (Fryer). Madagascar : Diego Suarez. 



Perissosoma Waterhouse, Ann. Mag. Nat. Hist., ser. 4, xv. 1875, p. 409. 



18. Perissosoma CBnescens, Waterhouse. 



Perissosoma csnescens Waterhouse, op. cit. p. 410 ; Alluaud, Liste Col^opt., p. 269 ; 

 Linell, Proc. U. S. Mus., xix. 1897, p. 703 ; Kolbe, Mitt. Zool. Mus. Berlin, v. 1910, p. 22. 



Perissosoma tenuitarse Fairmaii-e, Bull. Soc. eut. France, 1895, p. cclxxviii ; Alluaud, 

 loc. cit. ; Kolbe, loc. cit. 



67 specimens, all males ; they agree closely with specimens of P. (enescens in the 

 British Museum. Examples were sent to Dr A. Sicard, who compared them with speci- 

 mens of P. tenuitarse at Paris ; he informs me that the two species are identical, and 

 therefore the name tenuitarse must give way to (Bne.scens. Fau-maire stated that the club 

 of the antenna of the $ P. tenuitarse is formed of 3 lamellae ; but Waterhouse describes 

 the club of the antenna of the $ P. cenescens as being composed of 4 lamella;, which it 

 certainly is in the British Museum specimens, and in my specimens, aU of which I have 

 examined. It appears therefore that Fairmaire was mistaken as to the number of 

 lamellae. 



I have seen no female of this species. Fairmaire describes the ? of P. tenuitarse as 



30—2 



