OOPTERUS PLICATICOLLIS. 



Oopterus plicaticollis, Homhr. andJacq., Voij.au Pole 

 Slid, t. 2,/. 15. 



Hab. Auckland Islands. 



Oopterus rotundicollis. 



Thorax rounded, without any groove, near the posterior 

 margin depressed and closelj' punctured ; elytra with su- 

 perficial striae formed by rows of closely placed points ; 

 whole insect of a pitchy brown ; the palpi and legs of a 

 lighter colour. 



Length, 2j lines. 



Hab. New Zealand (Bay of Islands), Dr. Sinclair, Chas. 

 Darwin, Esq. 



MoLOPSiDA, White. 

 Head large; last joint of palpi sharp-pointed ; antennae 

 with the joints somewhat moniliform and bristly ; thorax 

 without margin, much wider behind than in front, sides 

 considerably rounded, behind quite straight, the posterior 

 angles nearly rectangular ; elytra ovate, truncated in front, 

 considerably convex. 



MOLOPSIDA POLITA. 



Deep, shining black; elytra with longitudinal rows 

 of shallow striae rather closelj' punctured, the margin with 

 two deep grooves connected in many places by short, 

 transverse grooves ; antennae and palpi ferruginous ; legs 

 deep rufous. 



Hab. New Zealand (Waikouaiti), Mr. Earl. 



Family SxAPHYLiNiDiE. 

 Staphylinds oculatds. 

 Staphylinus oculatus, Fab.Ent. Syst. II. 521, 10. Boisd. 

 Voy. Astral. II. 54, t. 9,/. 1 Erichso?i, Staj)h. 352. 



Entirely of a deep, smooth, shining black ; head on 

 each side with a large fulvous spot, forming a band on the 

 under side of head. 

 Hab. New Zealand. 



Staphylinus (Gyrohypnus ?) quadri-impressus. 



Black; elytra somewhat brown; head very lai'ge, squai*e, 

 with two deep points between the eyes ; antennae with first 

 joint very long, clubbed at the end, third joint very 

 narrow at the base ; thorax somewhat narrowed behind, 

 rounded in front, with two deepish points; elytra and 

 abdomen above finely punctured ; wings shaded with 

 brown. 



Length, 6 lines. 



Hab. New Zealand. 



Staphylinus (Cafius) puncticeps. 

 Head on the sides behind the eyes and on the back part 

 coarsely punctured, two large dots between the eyes ; 

 head and thorax with some scattered, longish hairs ; tho- 

 rax with two longitudinal lines of impressed dots ; elytra 



minutely punctured and covered with short hairs ; head 

 and thorax black ; elytra, abdomen and legs brownish. 



Length, 4 lines. 



Hab. New Zealand, — Colenso, Esq. 



Family Dyticid.*:. 

 Cybister hookeri. 



Front of head with two impressed dots; thorax be- 

 hind with a band of short, closely placed striae, and a few 

 dots along the front and close to the margin ; outer mar- 

 gin of elytra with many impressed dots and three distant 

 rows of dots on the back of the elytra, the dots far from 

 each other, especially on the two outside rows ; clypeus 

 and front of head yellow ; lateral margin of thorax and ely- 

 tra yellow, the yellow reaching the outer edge, other 

 parts of a very deep olive-brown ; some ferruginous- 

 brown on two fore legs ; antenna; fenuginous and brown 

 mixed. 



Length, 12 lines, greatest width, Q^ lines. 



Hab. Hutt River, Port Nicholson. 



Colymbetes notatus. 



Dytiscus notatus, Fahr. Ent. Syst. I. 195, 38. 



Brown ; thorax yellowish, with four black points and 

 sometimes an abbreviated black band ; sutural stria of 

 elytra yellow, margin of elytra yellowish. 



A specimen of Colymbetes from New Zealand in the 

 collection of Mr. Saunders exactly agrees with a British 

 example of the above-named species in the Museum col- 

 lection. 



Colymbetes rufimanus. 



Head narrow, between the eyes black, with a transverse 

 reddish line ; clypeus reddish ; thorax reddish, with a lo- 

 zenge-shaped black spot in the middle ; elytra yellowish, 

 thickly spotted with brown, margin without spots, suture 

 brownish, with a narrow yellow line on each side ; under- 

 side deep blackish brown ; two first pairs of legs light 

 rufous. 



Length, b^ lines, breadth, 3 lines. 



Hab. New Zealand. 



This species comes near C. pacificus, Boisd. Voy. Astrol. 

 50. Aube. Spec. Gen. Hydroc. VI. 268. 



Family Buprestid.*:. 

 Buprestis (Trachyides) eremita. 



Head, thorax and elytra very closely punctured and 

 slightly downy ; green, sometimes with a coppery hue ; 

 thorax in front with the sides slightly compressed. 



Length, 2j lines. 



Hab. New Zealand (Port Nicholson). 



This small Buprestis, the only representative of the fa- 

 mily that I have seen from New Zealand, resembles much 

 in form the Australian genus Diphucrania. The head, 

 however, is not notched in front. 



