OF NEW ZEALAND. 3! 



more, posteriorly less rounded ; the anterior angles not produced, pos- 

 terior obtuse, both rounded at the apex; very smooth above, rather 

 flat, rather thinly margined on both sides, median groove well impressed, 

 in front shortened, behind almost reaching the base, on both sides there 

 is a straight, deep, and rather wide groove, extending from the base 

 almost to the middle, and a rounded foveole on the outside. Elytra 

 not broader than the thorax, almost a third part longer than the head 

 and thorax, at the base nearly straight, truncate, and margined, shoul- 

 ders not rounded, but sub-obtuse and obsoletely dentate, sides parallel, 

 sinuated on the outside towards the apex, which is acutely rounded ; 

 above broadly flattened, abruptly declivous towards the apex, with 

 reflexed margins laterally ; deeply striate, striae smooth, punctiform 

 scutellar striae rudimentary, ninth strongly sinuate at the apex, inters- 

 tices in the male more convex, very smooth ; external, except the ninth, 

 carinated towards the apex in both sexes, and narrowed ; the third with 

 four punctures, the ninth dilated beyond the middle, deeply punctate. 

 Body very shining, coriaceous, mandibles and tibiae pitchy, antennas, 

 palpi, and tarsi reddish pitch-black. 



Length, i5^-i6|- mil. 



New Zealand. 



Trichosternus. 

 Chaudoir. 



This is a sub-genus formed by Baron de Chaudoir. Its characters 

 are identical with those of Pterostichus, and, so far as I can ascertain, it 

 only differs by the presence of hairs on the extremity of the prosternum. 

 For this information I am indebted to William Macleay, Esq., of 

 Sydney. The chief characters of Pterostichus, Bon., are : " Middle 

 tooth of the chin concave or obtuse. Tongue rounded, and truncated 

 at the end ; its paraglossae a little longer than it. Parapleura elongate 

 or short. Elytral striae distinct, impunctate, or multi-punctate. Posterior 

 tibia scarcely spinose outwardly. The three first joints of the anterior 

 tarsi of the males dilated, sub-cordate, and more or less hollowed." 



The genus Pterostichus itself does not appear to be very clearly 

 defined, Lacordaire regards it as synonymous with Feronia, whose 

 characters are given by him at p. 323, Tom. i., Hist, des Ins. Cole'op, 

 The fact is, considerable difficulty must be experienced in this colony 

 in dealing with .the Feroniidce in anything like a satisfactory manner, as 

 there appears to be quite a host of generic names included by Lacor- 

 daire under that of Feronia. Without a large and expensive library, we 

 cannot possibly discriminate between the members of such an extensive 

 series. 



65. T. antarctiCUS, Chaudoir; Bull. Mosc., 1865, i"-? / 73- 

 Body robust, of a brilliant bronzy-black with metallic green reflections, 

 the tarsi, palpi and three basal joints of the antennae piceous, the rest of 

 the latter red, with yellowish pubescence. Head large, labrum emargi- 

 nate, eyes prominent; it bears two elongate, irregular, frontal fovese, 



