Phytophaga Malayana. 255 



excavato ; antennis filiformibus, apicem versus perparum 

 inciassalis ; oculis prornineiitibus. T/iornx elytris angustior, 

 conicus aut subconiciis, dorso siibcylindricus, margine antico 

 utriiique sinuato, margine lateral! fere obsolete, margine in- 

 flexo fere perpendicular!. Elytra thorace latiora, postice 

 plus minusve attenuata, convexa, punctato-striata. Pedes sub- 

 elongati, robust! ;yewori6MS incrassatis, basi attenuatis, subtus 

 dente acuto armatis ; ^/'&i/squatuor posticis extus ante apicem 

 emarginatis; iinguicidis bifidis. Episterna antica trigonata vel 

 cuneifbrmia, seepe in medio longitudinaliter elevata ; sulcis 

 inter episterna et prosternum obsoletis. 

 The present genus differs from Rhyparida and Nodostoma in 

 the form of the thorax ; in Stetliotes the lateral border of the 

 thorax is nearly obsolete, being indicated only by a raised sutural 

 line ; the side beneath, or ora, is nearly perpendicular, and forms, 

 conjointly with the anterior episternum, a more or less distinct 

 longitudinal ridge, the edge of which runs perpendicularly down- 

 wards. 



A. Head deeply excavated on either side above the eye. 



1. Slethotes ekgantula, Baly. (PI. V.* fig. 2.) 



Pyrojiida elcgantula, Baly, Desc. New Gen. and Spec. Phyt. 



p. 15. 



Ovata, postice attenuaia, valde convexa, nigro-senea, nitidissima; 

 antennis nigris, basi fulvis ; vertice tumido, crebre impresso- 

 strigoso ; thorace longitudine latitudini aequali, sat profunde 

 punctato ; elytris -caeruleo-nigris, thorace multo latioribus, 

 a basi apicem versus angustatis, humeris prominulis, striis 

 sat fortiter punctatis ; episterno antico in medio non elevato, 

 introrsum oblique spectante. 



Long. 3 lin. 



Hab. Amboina. 



Vertex swollen, broadly excavated on either side above the 

 eye, closely punctured and impresso-strigose ; lower portion of 

 the front concave ; epistome not longer than broad, sides straight, 

 obliquely converging backwards, anterior border slightly con- 

 cave-emarginate ; labrum and three basal join s of the antennae 

 fulvous. Thorax one-fourth as broad again at the base as long; 



T 2 



