Coletyptera.] SUBANTARCTIC ISLANDS OF NEW ZEALAND. 95 



Carnley Harbour ; found under a stone ; one only. Preserved in the Canterbury 

 Museum. 



This species has been named in honour of its discoverer. The description was 

 published along with that of the preceding one ; the type I have not seen since 1901. 



Group ANCHOMENIDAE. 

 Pristancylus, Blanchard. 



Body oblong, perceptibly convex. Head short and broad. Mandibles stout, 

 flattened above, moderately acute at the extremity. Terminal joint of the palpi 

 oval, somewhat truncate at the extremity. Mentum trilobate, the median shorter 

 than the others and rounded at the apex. Antennae moderately thick, the 1st 

 articulation stout, the 3rd as short as the succeeding ones. Thorax cordate. Elytra 

 oval, rounded at the extremity. Anterior tibiae strongly notched. 



This genus, formed for the reception of two species collected at the Auckland 

 Islands, approaches Pristonychus and Sphodrus, but is distinguished from both by 

 the enlarged head and the abbreviation of the Ist articulations of the antennae. 



Pristancylus castaneus, Blanchard. 



Oblong, slightly convex, brilliant dark chestnut. 



Head almost as broad as long, with 2 small unequal interocular foveae. An- 

 tennae nigro-fuscous, the 1st articulations shining, the others dull. Thorax cordate, 

 smooth, its sides finely margined, with a fine median groove joining an anterior 

 one, which is transverse and moderately distant from the margin. Elytra oblong, 

 a little broader than the thorax, finely striated and feebly punctured, with 1 row of 

 large marginal punctures ; the interstices perfectly smooth. Legs of the same colour 

 as the body, or slightly brighter. 



Length, 16 mm. 



Hab. — Auckland Islands. 



Pristancylus brevis, Blanchard. 



Shorter and relatively broader than the preceding, especially posteriorly. Wholly 

 rather brilliant black. 



Head as broad as long, with a very feeble depression near each eye. Antennae 

 brownish-black. Thorax short, broad, more convex than in the preceding species, 

 with a very slight rather indistinct median groove. Elytra oval, nearly twice the 

 width of the thorax, with somewhat fine but little-punctured striae ; on each side 

 there is a row of large punctures ; interstices perfectly smooth and flat. Legs and 

 tarsi reddish-brown. 



Length, 14 mm. 



Hab. — Auckland Islands. 



Obs. — Neither of these species having been found by our expedition, translations 

 of the original descriptions have been given. The generic diagnosis does not point 

 out very clearly how these species differ in structure from Pristonychus. 



Calathus, Bonelli. 

 Mentum large, deeply emarginated, with a strong bifid median tooth. Ligula 

 rounded in front. Last joint of the palpi subcylindric, truncate at the extremity. 



