Coleoptera.] SUBANTARCTIC ISLANDS OF NEW ZEALAND. 87 



shining, with lightly impressed finely punctured striae, nearly obsolete at the sides, 

 the interstices flattened ; the external and sutural margins nearly fulvous brown. 

 Legs brownish. Abdomen nearly black. 



Length, 5 mm. 



Hob. — Auckland Islands. 



The above is an essentially correct translation of Guerin's description. None 

 of the few specimens placed at my disposal agree with it. 



Oopterus plicaticollis, Blanchard. 



Piceo-aeneous ; head oblong, bisulcate ; antennae piceous, reddish at base ; 

 thorax cordate, convex, transversely pUcate ; elytra arched, smooth, striate-punctate. 



Smaller than O. divinoides, thorax narrower, elytra broader, body bronzed 

 brown. Head oblong, narrower than the thorax, with wide interantennal grooves. 

 Antennae blackish-brown, the first 3 articulations fulvous, as are also the palpi. 

 Thorax convex, cordate, margined, with a well-marked median groove, a very large 

 cavity near each posterior angle, and a few fine transverse ridges. Elytra broad, 

 perfectly oviform, smooth, shining, bronzed brown like the other parts of the body, 

 with well-marked finely punctured striae, the interstices narrow, the margins rufo- 

 fuscous near the extremity. Legs light-reddish. Abdomen nigro -fuscous, the ex- 

 tremity rufescent. 



Length, 4-5 mm. 



Hah. — Auckland Islands. 



The remarks appended to the description of 0. divinoides are applicable to 

 this species also. Unfortunately, we cannot examine the types. 



Oopterus tripunctatus, sp. nov. 



Shining, fusco-niger, the suture and posterior margins of elj^tra rufescent, legs 

 infuscate-fulvous, basal 3 joints of antennae red, the others darker. Palpi rufo- 

 testaceous. 



Head as long as, and, including the eyes, nearly as broad as, the middle of thorax, 

 being only one-sixth narrower ; the forehead has 2 setigerous punctures and a small 

 central fovea, it is slightly incurved in front ; at each side there is a narrow groove 

 separated from the large frontal impressions by an obtuse elevation ; there are 

 2 setigerous punctures near each side — one near the middle of the eye, the other 

 behind it ; its whole surface is densely and very minutely sculptured. Labrum 

 with 6 apical setigerous punctures. Eyes large and prominent, with distinct facets. 

 Antennae pubescent from the middle of the 3rd joint onwards. Thorax subtruncate 

 at base and apex, its sides finely but distinctly margined, rounded, rather wider 

 just before the middle than elsewhere, more narrowed behind than in front, with 

 rectangular but not sharply defined or prominent posterior angles ; the basal fossae 

 are large and extend forwards for one-third of the whole length, the intervening 

 basal space is slightly depressed, and marked with short fine longitudinal striae 

 and a few fine punctures ; the median groove rather fine, and not always prolonged 

 to the apex ; there are no definite lateral striae, and those across the middle of the 

 disc are very feebly impressed ; it is nearly as long as broad. Scwtdlum sub- 

 triangular. Elytra broadly oval, not double the width of thorax, with lateral channels 

 and margins ; these become obsolete where the wide sinuous posterior contraction 



