124 PERCY SLADEN TRUST EXPEDITION 



LABIDURID.ffi. ECHINOSOMATIN^E. 



Gen. EGHINOSOMA, Serville. 

 1839. Orth. p. 34. 

 1. Echinosoma bolivari, Rodz., var. 

 Echinosoma bolivari, Rodz., 1897, Wien, Ent. Zeit. xvi. p. 154. 



The true E. bolivari, from Madagascar, is a large species, with plain hlack pronotum, 

 elytra and femora, and plain orange wings. The specimens from the Seychelles are of the 

 same size, but the pronotum is dusky brown, the wings have a large, central dusky spot, 

 and the femora are dirty yellow. 



These features are quite as good as any which have yet been used to separate the 

 various species of Echinosoma, but as I am at present endeavouring to arrange the genus 

 on structural grounds, I refrain from describing this as new, although it is every bit as 

 distinct as are the several so-called African and Oriental species from each other. Very 

 probably it will be necessary to sink as mere colour-varieties several of these so-called 

 species, and I have not hesitated to fuse two Oriental ones in a recent work. 



These specimens from the Seychelles differ in the structure of the antennae and in 

 size from the Singalese E. parvulum Dohrn : they differ totally in pattern, coloration and 

 stature from E. congolense Bor. (W. Africa), and E. sekalavum Borm. (Madagascar) ; also 

 from E. forbcsi Kirby (New Guinea) in the structure of the abdomen ; also from the 

 abundant Oriental E. sumatranum Haan ( = E. westermanni Dohrn) in size, coloration 

 and distribution : they differ from E. concolor Bor., and E. fuscum Bor., and E. a/rum 

 Beauv. (W. Africa), in the spotted wings ; from E. yorkcnse Dohrn (N. Australia) in the 

 brown elytra and other features ; they differ entirely in coloration, and in the entire 

 penultimate ventral segment of the male, from E. occidentale Borm. (W. Africa) ; from 

 E. wahlbergi Dohrn (E. Africa) in the uniform dull brown pronotum and narrow pygidium 

 of the female, and from E. insulanum Karsch (Madagascar) in the all brown pronotum 

 and yellow legs. 



Possibly E. insulanum, E. bolivari and this species must be united. 

 Locality. Seychelles. Silhouette : near Mt Pot-a-eau, VIII. 1908, 1 $ ; Mare aux 

 Cochons, forest and plateau above, 2 $, 1 $, IX. 1908. 



PSALINiE. 



Gen. PSALIS, Serville. 



1831. Ann. Soc. Nat. xxii. p. 34. 



2. Psalis dohrni, Kirby. 



Nannopygia dohrni, Kirby, 1891, Linn. Soc. Journ. Zool. xxiii. p. 508. 



Nannopygia dohrni, Borm., 1900, Forf. p. 11. 



Labidura femoralis, Dubr., 1879, Ann. Mus. Civ. Gen. xiv. p. 353 (err., non Dohrn). 



