804 COLEOPTERA 



Pentarthrum (p. 5 8 )- 



925- P. ferrugineum, n.s. Shining, ferruginous; tarsi and 

 antennae sub-fulvous. 



Hostrum cylindrical, moderately broad, with a few fine fulvous 

 hairs near the sides and apex, rather finely and not closely punctured, 

 nearly smooth along the middle. Antenna inserted behind the middle, 

 stout, second joint of the funiculus slightly longer than third, with 

 fine greyish hairs, club rather short and rounded, obsoletely articu- 

 lated. . Prothorax longer than broad, triangularly ovate, a good deal 

 narrowed and constricted in front, considerably rounded behind the 

 middle, leaving an obvious space between the dilated part and the 

 elytral angles ; plane above, its dorsal line smooth, the rest of its 

 surface moderately punctated, the punctures not confluent. Elytra 

 rather short, base bi-sinuated, apices not explanate, sub-depressed ; 

 striate-punctate, interstices with a row of minute and distant punc- 

 tures ; nevertheless, owing to the sub-crenate punctures in the striae, 

 appearing rugulose ; the first three reach the apices, but the others 

 are abbreviated and cause ante-apical depressions. Legs moderate, 

 tarsi rather pilose. A few fine hairs may be seen near the base of 

 the thorax, but none elsewhere. 



When placed side by side with P. zealandicurii the difference in 

 size at once strikes the eye, the elytra being notably shorter ; the 

 thorax is more strongly rounded laterally and quite as broad as the 

 elytra, and, though the smooth neck is distinctly marked off, the 

 eyes seem a trifle less prominent ; the snout is stouter than that of 

 the female, but not so broad as in the other sex of that species. 



Length, i-^ lines ; breadth, % line. 



I found one near Parua. This species is substituted for P. 

 punctatum, which on re-examination proves to be identical with 

 Entmm aberrans. 



1431. P. crenatum, n.s. Sub-depressed, moderately glossy, 

 dark-red, antennae and tarsi paler, pubescent. 



Eostrum cylindrical, slightly narrowed behind, bearing a few 

 yellow hairs along the sides and front, distinctly punctured. Pro- 

 thorax ovate-triangular, constricted in front, impressed along the 

 dorsum, moderately coarsely and closely punctured, not rugose, 

 sparingly clothed with fine but rather elongate yellow hairs. 

 Scutellum smooth. Elytra truncate at base, rather broad, parallel, 

 rounded apically; disc rather plane, striated, the striae crenate- 

 punctate, interstices moderately broad, quite rugulose, the six inner 

 attain the apices, these latter not in the least explanate. Legs 

 moderate, tarsi stout, their penultimate joint sub-bilobed. Antennas 

 pubescent, inserted medially, second joint of the funicle decidedly 

 longer than third. Club rather narrow and elongate. 



This insect presents some peculiarities as compared with the 

 true Pcntarthra. The rostrum is intermediate in form between the 

 two sexes of P. zealandicum ; the eyes are depressed ; the thorax is 

 rather short, and the elytra are broader than it; the yellowish 

 brassy hairs are conspicuous. The coarse punctation of the head 

 ceases abruptly behind the eyes, leaving a broad smooth neck, 



