20 COLEOPTERA 



are slightly grooved and carinated above and densely hispid under- 

 neath. 



The mentum tooth is sub-triangular and acute ; the mandibles very 

 long and but slightly arched. 



Length, yj ; breadth, 2j lines. 



It is not a Calathus, though placed in that genus for the present. 

 I am unable to define its exact position more clearly, and it seems to 

 me to indicate a new form of this sub-family. I have succeeded in 

 finding one individual only, at Parua, Whangarei harbour. 



Anchomenus. 



Bonelli; Lacord. Hist, des Ins, Coleopteres, Tom. i t p. 349. 



Mentum more or less large, deeply emarginated, and furnished with 

 a strong tooth in the middle ; its sides terminating acutely. Ligula 

 short, squarely or feebly rounded in front ; its paraglossae linear. Last 

 joint of the palpi slightly ovate, and somewhat truncated at the extre- 

 mity. Mandibles moderate, sides straight, arcuated anteriorly, and 

 pointed at the end. Labrum transverse, entire or slightly emarginated 

 at apex. Head more or less elongated, narrowed behind. Eyes moder- 

 ately coarse and prominent. Antenna slender, long, the basal joint 

 stout and cylindrical, second rather short, third of variable length, but 

 always longer than, or as long as, the first, the following joints about 

 equal, or decreasing in length. Prothorax variable, sub-orbicular, ovate, 

 cordate, or quadrate. Elytra oblong, or ovate, and a little convex. 

 Tarsi slender; the three basal joints of the anterior pair, in the male, 

 more or less dilated, the first long and narrow, the next two oblong or a 

 little triangular, with somewhat rounded angles, always longer than 

 broad, the fourth hollowed at apex. 



The above, though not a literal translation, defines the characters of 

 the New Zealand species. The antennae, from fourth joint, are pubes- 

 cent. 



Platynus is a synonym. 



43. A. parabilis, n.s. This species is of a rather narrow, 

 convex form, and moderately shining black colour, with reddish legs, 

 antennae, and palpi. Head elongate, rather large in proportion to the 

 size of the thorax, nearly smooth, with two elongate frontal foveae, and 

 subtruncate labrum. Prothorax elongate-cordate, widest at the middle, 

 a little rounded and narrowed anteriorly, with slightly rounded front 

 angles, and considerably narrowed and sinuated posteriorly, with sub- 

 acute hind angles ; the base is sub-truncate, but with a short oblique 

 space at each side towards the hind angle, and the apex is a little emar- 

 ginate ; the sides are explanated and slightly reflexed ; besides the 

 broad marginal channel, there are two curved depressions on each side 

 of the disc, the dorsal furrow terminates in a depression near the front, 

 and the surface is more or less strigose. The elytra are ovate and 

 convex, rather narrow, with reflexed lateral margins ; they are obliquely 



