1S79.] 107 



tinguislied from Anchomemis by the form of the prosternal projection, 

 whicli in Anchomenus passes with an even unbroken surface between 

 the anterior coxpe, and is bent down behind them ; whereas in Cyclo- 

 thorax its surface is uneven, so as to give it the appearance of 

 terminating hehveen tlie anterior coxcb in a sharpened point received 

 into the emargiuation of a process bent forwards from behind the 

 coxse. It this respect it agi'ees with Olistlwpus (so far as I have had 

 opportunities of examining that genus), to which it must be very close 

 if the absence of a tooth from the mentum cannot be considered a 

 constant character of OlistJiopus. 



C. Pele, sp. nov. 



Convexus, nitidus, pioeo-niger, marginibus sutur&que plus minusve rufescentihus , 



atitenrds, palpis, pedibusque testaceis ; capiie mediocri ; oculis proniinulis ; antennis 



corporis dimidio hrevioribus ; 2^>'oi^'orace fortius transversa rotundatoque, levlter 



canaliculato antice hmid emarginato, trans basin piunctato, a»gulis posticis obtusis ; 



elytris elongato-ovalibi(s,fortiter striatis, striis (marginem apiceinque versus obsoletis) 



confertimfortiterqtiepunctatis, interstltiis subconvexis, humeris rottmdatis. 



Long. 6 — 7 mm. 



Kilauea, Hawaii, near the mouth of the crater. I have named 

 this species in honour of the goddess whom Hawaiian mythology 

 supposed to inhabit the volcano. 



Allied structurally to C. montivagus and onicnns, from both of 

 which it differs in its narrow elongate build and much greater con- 

 vexity, also by the non-dentiform hinder angles and the absolutely 

 trimcate front margin of the thorax, the less prominent shoulders, &c. 

 From the former it departs also by the narrow margin of the thorax. 



The form of thorax which I have characterized in the diagnoses 

 as having the basal angles " minute and subdentiform " is extremely 

 difficult to describe successfully. The lateral margin of the thorax is 

 very strongly rounded, but within almost a hair's breadth of the base 

 suddenly becomes a right line more or less exactly at right angles to 

 the base, and consequently forming a minute sharp angle with the 

 base, having almost the appearance of a small tooth projecting from 

 Ithe apex of an excessively obtuse angle. 



C. BEMBIDIOIDES, Sp. IIOV. 



Convexus, nitidus, ater, palpis antennarum basi pedibusque riifescentibus ; capite 



mediocri: oculis parum convexis ; antennis corporis dimidio longitudine aqualibus ; 



prothorace angusto, leviter transverso,fortiter rotundato, posticefortiter angustato 



\nec subcordato), canaliculato, antice vix emarginato, antice et trans basin parce 



punctata, marginibus sat latis, angulis posticis rotundatis ; elytris ovalibus, absolute 



glabris (striA suturali et marginali except isj ; humeris haud prominulis. 



Long. 4i mm. 



