50 Mr. Charles J. Gahan's Revision of 



20. Astathes gemmula. 



Astathes gemmula, Thorns., Syst. Ceramb., p. 557 (1865). 



Keddish-testaceous, with the elytra from the base to a little beyond 

 the middle, purplish-violaceous ; first two joints of the antennae, 

 black, last six or seven infuscate ; tarsi and apices of tibiae infuscate. 

 Head and prothorax distinctly but rather sparsely punctured ; upper 

 part of front of head depressed in the middle, and separated by an 

 obtuse and oblique ridge on each side from the lateral and lower 

 parts of the front ; dorsal tubercle of prothorax sub-pyramidical in 

 form, and as strongly raised in the middle as in A. levis, Newin. 



Hob. Celebes. Type ($) in coll. Oberthiir. 



This species agrees very well in structure with A. levis, 

 Ncwm., and has a considerable resemblance to it in colour, 

 the chief differences being that the first two joints of the 

 antennae are black, and the elytra do not exhibit a fuscous 

 patch on the posterior part of the violaceous area. 



21. Astathes plagiata, sp. n. 



Astathes levis, var. y. Newman, The Entomologist, i, 

 p. 299. 



Astathes plagiata (Hope MS.). 



Keddish-testaceous. Antennae with the basal joint brownish or 

 piceous, the last six or seven infuscate, and the intermediate joints 

 pallid. Elytra each with a rather large violaceous-blue spot placed 

 a short distance before the middle, about midway between the suture 

 and outer margin. Tarsi and, to a greater or less extent, the tibiae, 

 infuscate. Front of head distinctly but not very closely punctured ; 

 furnished with a rather feeble median carina in its lower half in both 

 sexes ; vertex feebly and sparsely punctured. Prothorax rather 

 sparsely punctured ; the transverse ridge is not prominent at the 

 sides, and the centro- dorsal tubercle scarcely exists as such, being 

 hardly raised above the level of the surrounding parts. Elytra each 

 with two dorsal costae in addition to the j uxta-sutural costa. 



Hal. Philippine Islands, N.E. Luzon (Whitehead). 

 Type in Brit. Mus. 



The very feebly raised centro-dorsal tubercle of the 

 prothorax, together with the different markings of the 

 elytra, serve to distinguish this species from C. levis, of 

 which Newman regarded it as a variety. 



