458 Mr. W. W. Saunders on 



2. Calascopus Aruensis, W. W. S. (PI. XVII. fig. 5.) 

 Dark blueish shining green, with tlie head and thorax of a 



bronzy hue. 



Head somewhat elongate, restricted behind, with the upper 

 surface very smooth and rounded, and having two elongate, 

 roughish depressions between the eyes. Antennae robust, bronzy- 

 purple, as well as the parts of the mouth. 



Thorax nearly quadrate, with the angles prominent, the sides 

 narrowly margined and somewhat contracted posteriorly ; the 

 anterior margin slightly emarginate, the posterior quite straight ; 

 the upper surface very finely striate transversely, with a longi- 

 tudinal central furrow running into a curved depression, which 

 passes nearly parallel with the anterior margin. 



Elytra somewhat broader than the thorax, about once and a 

 half as long as broad, the shoulders prominent, the sides nearly 

 parallel, the apices rounded and strongly emarginate, with a sharp, 

 broad tooth at the commencement of the emargination, and another 

 at the apex of each elytron. The upper surface regularly and 

 rather deeply striate. 



Legs moderate. Tarsi pitchy-brown. 



Length -j^ij inch. 



Aru. Wallace. 



The nearly quadrate shape of the thorax is a good distinguishing 

 character of this species. 



3. Catnscopus Icev'igatus, W. W. S. (PI. XVIIL fig. 2.) 

 Uniform shining dark metallic green. 



Head transverse, rounded above, with two longitudinal, rough 

 depressions between the eyes, curving outwards and extending 

 half the length of the head ; upper surface behind the depressions 

 very smooth, with a few long hairs about the eyes. Antennae short, 

 pitchy-brown, as well as the palpi. Labrum and mandibles bronzy- 

 purple. 



Thorax transverse, much broader than long, the sides narrowly 

 margined, roimded and contracted behind, fringed on the anterior 

 half with long hairs ; the anterior margin very slightly emarginate, 

 the posterior margin quite straight ; the upper surface with slight 

 transverse striae, and a central, longitudinal furrow, and with two 

 depressions, one on either side near the lateral margins, and a slight 

 one in front near the anterior margin. 



Elytra broader than the thorax, about once and a quarter as 

 long as broad, with the shoulders prominent, the sides somewhat 

 curved outwards, and the apices rounded and strongly emarginate, 



