Coletyptera.] SUBANTARCTIC ISLANDS OF NEW ZEALAND. 121 



Underside piceous, distinctly but not closely punctured. Basal ventral segment 

 larger than 2nd, 3rd and 4th abbreviated, with deep straight sutures, and apparently 

 glabrous. Pectoral canal deep, its hind margin not elevated in line with the back part 

 of the intermediate coxae. Metasternum short and plane, medially incurved behind. 



The vestiture is obscure grey or yellowish-grey. 



Length (rost. excl.), | line ; breadth, | line. 



Auckland Islands. 



Two examples, from Mr. Hudson. 



Pachyderris, gen. nov. 



Allied to Acalles, but differing somewhat in form and structure. 



Scutellum distinct. Pectoral canal limited behind by the raised borders of the 

 mesosternum, and extending as far as the middle of the intermediate coxae. Meta- 

 sternum short, medially depressed. Abdomen elongate ; basal segment elongate, 

 one-third longer than 2nd ; 3rd and 4th not abbreviated, each shorter than the 2nd ; 

 suture between the basal 2 truncate. Legs long and slender. Tibiae with well- 

 developed terminal hooks. Tarsi slender and elongate, their basal joint rather 

 longer than the terminal one, not at all spongelike underneath, being clothed with 

 fine yellow hairs, 3rd joint bilobed. Rostrum elongate, gradually narrowed towards 

 the middle. Thorax obtusely prominent, its sides, in front, incurved, but becoming 

 prominent and ciliate lower down so as to form ocular lobes ; it is truncate at the base. 



Pachyderris punctiventris, sp. nov. 



Convex, opaque, densely covered with blackish depressed squamae, and scattered 

 erect griseous squamiform setae ; legs and rostrum piceo-rufous. 



Rostrum a little nitid, rather longer than thorax, finely yet distinctly and 

 moderately closely punctured, but with the linear space along the middle smooth. 

 Head globose. Thorax as long as broad, gradually narrowed anteriorly ; punctate 

 and squamose, and bearing many erect yellowish-grey squamiform setae ; it is 

 somewhat transversely depressed in front, on the middle some infuscate squamae 

 are concentrated but do not form crests. Elytra closely adapted to base of thorax, 

 with oblique shoulders, so that the base does not exceed that of the thorax ; they 

 are gradually narrowed backwards from the hind thighs, so that the apex is only 

 half the width of the basal half ; posterior declivity not vertical ; they are apparently 

 punctate-striate near the suture, and are indistinctly and irregularly crested, so 

 that any description of one elytron would not be applicable to the other so far as the 

 basal part is concerned, but two spaces, one near the base, the other in front of the 

 declivity, are intensely black, the last has a small yellowish tuft at each side, just 

 on top of the declivity the suture is nodiform ; their sides are nearly vertical. Legs 

 long and slender, variegated, rufescent and piceous, with coarse greyish setae. 

 Antennae medially inserted. Scape rather slender, just attaining the eye. Funiculus 

 longer than scape, 7 -articulate, basal 2 joints of nearly equal length, 3rd oval, 4-7 

 small, the last larger than 6th. Cluh oval, articulate. Scrobes lateral, deep through- 

 out, sharply limited above and below. Eyes subroundate. 



Length (rost. excl.), 2 J lines ; breadth, 1 line. 



Camley Harbour. 



The specimen is unique. It is another of Mr. Hudson's captures. 



