Species of New- Zealand CoJeoptera. 225 



Tibia, anterior with one very small and two distinct setae 

 along the outer edge^ those on the other pairs short and 

 indistinct. 



Less convex and narrower than A.hehnsi (1833), the apex 

 of elytra not at all castaneous, the tibiae much less evidently 

 or scarcely at all spinose externally. The elytral margins are 

 not expanded as in 158 and 1G90, and both of these are 

 ditferent otherwise. 



Length 1^; breadth | line. 



Otira Gorge [Mr. J. H. Lewis) ; a single specimen. 



Group Aleocharidae. 

 Protofristus, gen. nov. 



Bodij elongate, parallel, slender, minute. 



Head suboblong, slightly hut abruptly contracted near the 

 hase, Mith a short neck, its whole front closely and distinctly 

 serrate. Eyes small, rather flat, placed at the sides before 

 the middle, composed apparently of two coarse facets. Man- 

 dihles falciform, very elongate, with a long projecting central 

 tooth inside. Antemne rather short, implanted on the fore- 

 head, nearly equally distaut from the eyes and each other, 

 11-jointed ; basal two joints stout, oblong ; joints 3-6 small, 

 moniliform ; seventh and eighth also small, transverse, 

 slightly hroader than the preceding ones ; ninth also trans- 

 verse, rather broader than the eighth; penultimate abruptly- 

 enlarged, twice the size of the niuth ; the terminal ovate, as 

 broad as the tenth but nearly double its length ; they are 

 not perceptibly pubescent. Maxillary palpi as long as the 

 basal five joints of the antennae, penultimate joint subovate, 

 emargmate at apex, the terminal small and transparent so as 

 to be almost invisible. Thorax with acutely prominent 

 anterior angles, its sides slightly curvate, posterior angles 

 obtuse. Elytra subquadrate, very short, base and apex 

 incurved. Abdomen very elongate, longer than the rest of 

 the body, basal four segments transversely quadrate, about 

 equal, with broad lateral margins, fifth and sixth elongate, 

 seventh very narrow. 



Femora stout, arched above, the posterior in the male 

 somewhat angulate and dentate below. Tibiae arcuate exter- 

 nally, unarmed. Tarsi 4-articulate, basal three joints small 

 and conji/intly not longer than the terminal one; claws 

 divergent, simple. 



Coxee promiaient, the anterior and intermediate contiguous, 

 the former situated very near the hind edge of the pro- 

 sternum, the posterior slightly separated. 



This minute member of the Staphylinidae seems to have 



