GUT A. K. MARSHALL— COLEOPTERA. 229 



its green and yellow scaling, Dr. Kolbe's species (Stuhlmanu's ' Ost-Afrika,' Zool. 

 iv. p. 270, pi. iii. f. 34) may be distinguished from all those here described 

 by the continuous furrow on the rostrum and forehead, and by the deep sulci 

 on the elytra, which dorsally contain neither punctures nor granules, but are 

 punctate laterally. 



Rostrum antice gradatim dilatatum, a capite sutura angulata profunda separatum, 



area dorsali subparallela; scrobes insuper visibiles, deorsum effusi. Anteunse 



scapo marginem anticum prothoracis evidenter superante, funiculi articulo 2° 



quam 1° perpaululum longiore, 3° longiore quam 4°, 4°-6'" sequalibus, 7° vix 



longiore. Prothorax antice posticeque truncatus. Elytra ovata, postice rotundata, 



striis 10 vix perspiciendis. Pedes longi, femoribus posticis abdominis apicem 



fere attingentibus, tibiis scabrosis interne spinis 2-3 armatis, tarsis latis, articulo 



secundo valde transverso. Abdomen articulo primo postice sinuato, secundo 



vix breviore quam 34-4. Episternum metasternale angustum, sutura postice 



evanescente. Mesosternum inter coxas obtuse tubei'culatum. 



This genus is nearly allied to Amphitmetus Kolbe (Arch. f. Naturg. 1898, p. 251) 



and Paraplesius Hartmann (Deut. ent. Zeit. 1904, p. 376), on account of the 



reduction of the episternal suture of the metasternum, the subparallel dorsal area of 



the rostrum, and the 10 striae on the elytra. Amphitvietus differs in having the first 



joint of the funicle longer than the second, the dilatation at the apex of the rostrum 



is abrupt and not gradual, the rostrum is not separated from the head by a deep 



suture, and the second joint of the posterior tarsi is not transverse. 



Paraplesius, whicli I know by description only, differs in having longer antennae, so 

 that the scape reaches the middle of the prothorax, the rostrum is not separated from 

 the head by a furrow, joints 3-7 of the funicle are all equal, and the scrobe reaches 

 the middle of the eye. 



Apotmetus montanus, sp. n. (Plate VII. fig. 18.) 



Niger, opacus nudus, mesosterno et lateribus metasterni plus minus albo-squamosis. 



Caput transversum, planum, striolato-punctatum, fronte foveola elongata insculpta ; 

 oculi fere circulares modice prominuli. Rostrum capite paulo lougius, gradatim ad 

 apicem dilatatum, supra planum striolato-punctatum, linea media levi. Antennce 

 nigrge, albo-setosse, scapo rugoso-punctato. Prothorax paulo latior quam longior, 

 a basi ultra medium pai'allelus, dein ad apicem curvato-angustatus, supra late sed 

 leviter impressus, sulco medio minima profundo instructus, coriaceus cum granulis 

 sparsis valde depressis. Elytra ovata, ad basin conjunctim sinuata, humeris vix 

 ullis oblique rotundatis, paulo pone basin latiora, dein postice attenuata, ad apicem 



VOL. SIX. — rAET II. No. 31. — December, 1909 2 i 



