110 Rev. A. Matthews on new Corjiophidse. 



longis, pronoto latioribus at plus quam duplo longioribus, prope 

 media latissimis, aterrimis, glabris et uitidissimis, lateribus leviter 

 marginatis, epipleuris flavis, apice parum acumiuato ; pedibus sat 

 longis, laete flavis ; anteiinis flavescentibus, clavis brevibus, valde 

 incrassatis, nigrescentibus. 

 Exempla nonnulla minora et dilutiora sunt, forsan foeminea. 



In the size and sliape of the club of its antennse this species 

 differs very ranch from any other of the genus, and may also 

 be recognized by its ovate form and very peculiar colour. 



It was found in Chili. 



Oligarthrum*, gen. nov. 



Corpus ovale, convexum. 



Capxd modicum, sub pronoto totum occultum ; oculis sat magnis, 

 prominentibus ; autennis prope oculos insertis. 



Antenna' articulis octo compositoe : 1° sat magno, pyriformi, modice 

 recurvato ; 2° gracili atque brevi ; 3° secundo parum longiore et 

 latiore ; 4" tertio fere duplo longiore et latiorc ; 5° perbrevi, trans- 

 verso ; G^-S'" valde incrassatis, clavam subfoliatam formantibus. 



Pronotum magnum, margine anteriore Integra, valde rotundata. 



Elytra Integra, sat longa, obtusa. 



Prosternum parvum, inter cosas elevatum et postice dilatatum, epi- 

 meris sat magnis, receptacula coxarum partim cingentibus ; 

 receptaculis coxarum antice et postice partim apertis. 



Mesosternurii breve, epimeris angustis, a receptaculis coxarum re- 

 motis. 



Metasternum modicum, transversum, a corporis lateribus remotum, 

 episternis magnis. 



Venter segmentis sex compositus, primo magno. 



Ped6s antici tibiis praelongis, incurvatis ; intermedii anticis breviores, 

 tibiis simplicibus ; postici intermediis longiores. 



Coxce anteriores magnse, ovales, prominentes, prosterno elevato 

 divisae ; intermedice magna?, rotundatse, modice distantes ; poste- 

 Hores sat parvae, subovatai, sat remotge. 



Tarsi omnes 4-articuIati, articulo tertio exiguo. 



I did not venture to dissect the mouth of the unique speci- 

 men on which this genus is founded, and therefore cannot 

 describe its palpi; but from superficial examination they 

 appear to be of the usual Corylophide-iy^e,. The genus is, 

 however, sufficiently distinguished by its peculiarly formed 

 eight-jointed antennae and other anatomical characters. 



Oligarthrum JVaferhousii, sp. nov. 



Long. 0-75 mm. Ovale, valde convexum, nitidum, sat profunda 

 pnuctatum, totum castaneum ; pronoto magno, antica ovaliter 

 rotundato et modice reflexo, indistincte punctato, margine basali 



* oXiyos, few; apOpov, a joiut. 



