Longicornia Malayana. 343 



§ Third joint of the antennae longer than the scape. 

 Xyaste sem'msta. (PI. XV. fig. 4.*) 



X. brunneo-testacea, dimidio postico elytrorum nigricante; 

 antennarum articulo octavo basi testaceo. 



Hah. — Sumatra. 



Pale brownish-testaceous, with the posterior half of the elytra 

 blackish; head thinly punctured, clouded with brown in front; 

 prothorax with only a few scattered punctures, the sides blackish ; 

 scutellum transverse, rounded behind; elytra finely seriate-punc- 

 tate, the interstices slightly raised, the posterior black portion shad- 

 ing off anteriorly, the external margins also black ; body beneath 

 blackish, sliining, the coxae, the anterior femora beneath, and the 

 base of the intermediate femora testaceous ; antennae nearly three 

 times as long as the body, the first three joints and the base of 

 the fourth black, the remainder, except the base of the eighth, 

 dark brown or blackish. 



Length 3 lines. 



Xyaste paradoxa. 



X. brunneo-testacea ; elytris, basi excepta, nigricantibus ; an- 

 tennarum articulo octavo toto nigro. 



Hab, — Singapore. 



Brownish-testaceous ; tlie elytra, except a small portion of the 

 base and shoulders, blackish ; head with a deep vertical groove 

 in front, each side of the groove bounded above by the antennary 

 tuber, the lower part ending in a very strong triangular tooih 

 directed obliquely outwards ; prothorax nearly impunctate ; scu- 

 tellum triangular, slightly rounded at the apex ; elytra finely 

 seriate-punctate, the apices nearly rounded ; body beneath black- 

 ish, the coxae and anterior and intermediate femora more or less 

 dull testaceous ; antennae black, the fourth joint, except at the 

 base, and the fifth and sixth, paler. 



Length 3 lines. 



The singularly grooved face of this insect may be only acci- 

 dental, more probably it is sexual ; unfortunately I have only a 

 single specimen. 



Xyaste intida. 

 X. subangusta, brunneo-testacea, apice elytrorum nigricante ; 



antennarum articulo octavo basi testaceo. 

 Hab. — Sarawak. 

 Narrower than the two preceding species, clear brownish tes- 



