and species of PselaphidcB and ScydmcBnidce. 493 



the upper surface. Elytra longer than the thorax, much 

 narrowed at the shoulders, each with a sutural, and a very 

 distiiict curved discoidal stria; they are quite shining and 

 furnished with a few fine curved hairs. Hind body rather 

 densely set with very fine depressed hairs. 



New Zealand (Hokitika). The four specimens of this 

 species sent me by Mr. Edwards, show no characters to 

 distinguish the sexes, and I suppose them to be all females. 



Pselaphus tenuis, n. sp. Castaneus, nitidus, angustus, 

 prothorace simpHce, latitudine longiore. Long. corp. vix 

 1^ mm. 



jNIas, metasterno, medio tuberculis duobus, postice de- 

 presso, abdomine segmento 1° ventrah late impresso, apice 

 mutico. 



A small and very slender species. Maxillary palpi long 

 and slender, the thick part of the last joint scarcely so long 

 as its slender stalk. xVutenna? elongate, slender, the three 

 last joints long, and only a little iucrassate. Head with 

 a deep impression between the eyes, the vertex short. 

 Thorax longer than broad, but little dilated in the middle, 

 smooth and shining, Avithout basal impression. Elytra 

 narroAv, longer than the thorax, with a sutural, and fine 

 curved discoidal stria. 



Victoria. A single specimen received from H. Edwards. 



This species, remarkable from its simple thorax, is some- 

 what allied to the P. lineatus, King, but its smaller size 

 and more slender structure, and the shorter _ vertex, in 

 conjunction with the male characters, render it very dis- 

 tinct. 



Gerallus, nov. gen. 



Antennae 11 -articulate, apice clavatte basi modice ap- 

 proximate. Caput ante antennarum insertiouem, sat 

 elongatum, deflexum, oculis lateralibus. Palpi maxillares 

 valde elongati, articulo tertio elongato. Pedes graciles, 

 tarsis unguiculis duobus parvis; iutermedii trochanteri- 

 bus elongatis, femoribus a coxis bene separatis ; coxis pos- 

 ticis distantibus, baud prominentibus. Abdomen margi- 

 natum, breve. Corpus convexum, antice angustatum. 



This genus appears to be allied to both Tyrus and 

 Tychus, but it has the antenne more separated at the 

 insertion than either of those genera. It is readily dis- 

 tinoMiishcd from Tyrus by the elongated maxillary palj.i : 



L L 2 



