and Sjpecies of Coleoptcra. 29 



from B. arusjiex (the only exponent of the genus at present), 

 I can find no character sufficient to warrant its separation, 

 unless the remarkable armature of the head and prothorax of 

 the latter be considered of generic importance. I had, how- 

 ever, at one time thought of proposing for it the generic name 

 of Mctriogonus. 



Telethrus. 



Caput trausversum, poue oculos hand constrictum ; chfpeus subpro- 

 ductus, a capite sulco discretiis ; labrum parvum; antennce 

 modice elongatie, articuhs tertio quartoque ?equalibu8, sequentibus 

 plus minusve triaugiilaribus, ultimo ovato. Prothorax rotundatus, 

 convexus. Scatellmn nullum. Ehjtra breviuscula, basi protho- 

 racis haud latiora ; epipJeura angusta. Pedes mediocres ; tihice 

 rectie, anticse intus (apicem versus) dente uuico iustructae ; tarsi 

 broviusculi, antici articuhs quatuor basahbus traiisversis, arete 

 ajijplicatis. Metastenium brevissimum : incsosternum paulo exca- 

 vatum. Processus intcrcoxalis latus, apice truncatus, 



I place this genus near Mtsolamjms principally on account 

 of the absence of a scutellum ; in the broad abdomino-inter- 

 coxal process it agrees with ISpherotas and Oadara. The 

 epipleur^e are not distinctly marked off from the elytra. 



Telethrus eheniaus. 



T. niger, nitidus ; capite prothoraceque impuuctatis ; elytris striatis. 

 • Long. 5 lin. 



Hah. Para * (Santavem) . 



Glossy black, especially the legs ; head and prothorax ira- 

 punctate, the latter very convex, and about as broad as long, 

 the anterior half the largest ; pronotum marked off from the 

 flanks by a slender raised line ; elytra not much longer than 

 broad, very convex, slightly tapering near the apex, punctate- 

 strlate, the strise sharply defined, the punctures strongly 

 impressed and impinging on the interstices. 



Micrantereus tentyrloides. 



M. anguste ovatus, niger ; prothorace confertim punctato ; elytris 

 irrcgulariter et levitcr tuberculatis ; femoribus iutcrmediis dente 

 parvo instriictis. Long. Og lin. 



Hab. Arabia (Yemen), 



Narrowly ovate, black, scarcely shining; head and pro- 



* Not always certain of the exact locabties of many of tlie species, 

 I have used the name Para for the lower province and Amazons for the 

 upper, the two great political di\'ifcions at present of the Amazons-valley 

 reijion. 



