Classification of the Coleopterous family Endomychidae. 15 



Amphisternus phyllocerus, sp. n. 



Niger, nitidus, elytris purpureis, singulo maculis duabus magnis 

 tiansversis elevatis pallide flavis ornato ; modice elongatus, postice 

 haud attenuatus, pronoto tiansverso, quam elytris multo angustiori, 

 aiigulis anticis productis incrassatis, ijosticis rectangulis, lateribus 

 fere rectis et parallelis, dorso medio profunde biimpresso; elytris 

 leviter punctatis, plagis duabus pallide flavis elevatis laevibus, 

 humeris modice prominentibus, lateribus paulo deplanatis, fere 

 parallelis; antennis tenuissimis, clava latissima, femoribus valde 

 clavatis : 



(J, tibiis anticis usque ad medium fere rectis, deinde arcuatis. 



Long, 7"5 mm. ; lat. max. 4-5 mm. 



Hab. Assam : Patkai Hills {W. Boherty). 



I have seen only a single male specimen. 



This is an entirely pecnUar species, resembling Eucteanus 

 marseuli more than any known Amphisternus, of which 

 genus it is nevertheless only a curiously modified repre- 

 sentative. The antennae are very slender, with a very 

 broad and flat club, of which the first joint is almost an 

 equilateral triangle and the other two conjointly about as 

 broad as long. The pronotum is as usual rather small, 

 with very prominent but blunt front angles. The elytra 

 are almost parallel-sided and not long, with a trans- 

 versely oval pale yellow patch behind the shoulders, forming 

 an abrupt rounded swelling, and another similar one before 

 the apex. The legs are slender, the tibiae clotlied with 

 short golden hairs, and the front tibiae of the male regularly 

 curved in the anterior half. 



Genus Engonius. 

 Eiigonius tetrasphaera, sp, n. 



Niger, elytris plerumque coeruleo-mgris, singulo bimaculato, 

 maculis magnis, rotundatis; convexus, parum elongatus, pronoto 

 valde transverse, ante medium paulo dilatato, angulis anticis pro- 

 ductis, posticis acutis ; elytris cordiformibus, sat fortiter punctatis, 

 lateribus valde arcuatis, ante medium sat latis: 



O, tibiis 4 anterioribus intus similiter acute spinosis, abdominis 

 apice subtus excavato. 



Long. 7 mm. ; lat. max. 4 mm. 



Ilab. BoKNEO : Sandakan (C. F. Baker), Pengaron 



