the Species of Catascopus. 463 



The legs are rather long, with the joints of the tarsi pitchy- 

 brown. 



Length -j?^ inch. 



Hab. Wagiou, Dorey and Mysol. In Mr. Wallace's collection 

 and my own. 



This is one of the most beautiful species of the genus, and may 

 at once be distinguished by the brilliant thorax, rich purple elytra, 

 and the length of the spines at the apex of the elytra. I have 

 named it after Mr. Wallace, to whom Entomologists are so much 

 indebted for the discovery of so many new insects, including 

 several of the most beautiful and extraordinary known. 



2, Catascopus versicolor, W. W. S. (PI. XVIII. fig. 1.) 



Colour rich shining metallic green, with the parts of the mouth, 

 antennae and tarsi purplish-black, and the elytra suffused with 

 rich copper colour from the apex to nearly | of their length. 



The head is elongate, somewhat contracted behind, the upper 

 side with two deep rough depressions between the eyes, behind 

 which the surface is very smooth. Antennae rather thin, about 

 the length of the head and thorax combined. The eyes are 

 prominent. 



The thorax is rather broader than the head, cordato-quadrate, 

 witli the anterior and posterior margins straight, the angles promi- 

 nent, and the sides narrowly margined. Above it is quite smooth, 

 with a deep central depression running nearly the whole length, 

 which is deeper and broader anteriorly. 



The elytra are considerably broader than the thorax, with the 

 sides nearly parallel and rounded posteriorly, and having the 

 shoulders prominent and somewhat rounded. The apices of the 

 elytra are deeply emarginate and each drawn into a short pointed 

 tooth, and there is also a sharp shortish tooth at the commence- 

 ment of each emargination. The upper surface of each elytron is 

 marked with eight deep, longitudinal, punctate striae ; the 3rd and 

 4th from the suture the widest apart ; the 4th and 5th close to 

 each other, and so also the 6th and 7th, which are nearly as 

 closely set. The underside of the body is purplish-black. 



The legs are moderate in length. 



Length ^^ inch. 



Sumatra. In Mr. Wallace's collection. 



A species of moderate size, coming near to C. oxygonus of 

 Chaudoir, but differing in the emargination and spines at the apex 

 of the elytra and the deeply punctate striae of the same. 



