Astathes and allied Genera of Longicom Coleoptera. 55 



Entirely black with the exception of the elytra and antennae ; 

 elytra of a deep violaceous-blue colour, and the antennso pale 

 yellowish with the last three or four joints infuscate. In its 

 relatively broad form and in all its structural characters the species 

 agrees well with A. nitens, Fab. 



Hal. Borneo. Type (<J) of caloptera in Brit. Mus. 

 Type ($) of cyanipennis in coll. Oberthiir. 



This species varies very considerably in size, one of the 

 male specimens described, by Pascoe measuring only 9 mm. 

 in length, whereas a large female in the Brit. Mus. 

 collection has a length of 17 mm. 



29. Astathes posticalis. 



Astathes posticalis, Thorns., Syst. Ceramb., p. 558 (1865) ; 

 Pasc, Trans. Ent. Soc. Lond., (3) iii, p. 351 (1867). 



Head, prothorax and abdomen black ; elytra violaceous from the 

 base to a little beyond the middle, thence to the apex testaceous, the 

 violaceous area with an almost straight hind border ; antennae 

 testaceous, with the intermediate joints pallid, and the last five or 

 six infuscate ; hind-breast testaceous ; legs more or less piceous. 

 Agrees with A. nitens, Fab., in structural characters. 



Hah. Borneo. Type ($) in coll. Oberthiir. 



This species appears to vary in the extent of the 

 violaceous colour on the elytra. In one specimen before 

 me the violet area does not reach quite up to the middle, 

 in another it reaches just to the middle, while in all the 

 remaining specimens it reaches to a little beyond the 

 middle. 



30. Astathes ignorantina. 



Tetraophthalmus ignorantinus, Thorns., Archiv. Ent., i, p. 

 51 (1857). 

 Head and prothorax black ; elytra dark violaceous for nearly 

 two-thirds of their length from the base, apical part testaceous ; 

 metasternum and abdomen testaceous, with the middle of the first 

 segment black ; fore and middle femora blackish, hind femora 

 testaceous ; tibise all slightly black at base, and testaceous towards 

 the apex ; tarsi testaceous ; antennas pale yellowish-testaceous. 

 Pronotum sparsely punctured, with transverse ridge and median 

 tubercle closely resembling those of caloptera, Pasc, and nitois, Fab. 



Hah Java. Type (?) in coll. Oberthiir. 



Var. Differs from the type in having the abdomen entirely 



