748 AUSTRALIAN AND TASMANIAN PSELAPHID^E, 



The type of R. IsiJoroi was from King George's Sound; my 

 specimens (sexes) are from Vasse (not far from tlie Sound) and 

 • Swan River. 



Rybaxis Isidore Scliauf.(^. anlilope RafFr.(?)). 



R. Harti is not a synonym of this species (see above note). 

 But I think the male has been described by M. Raffray under 

 the name of R. antilope. 



Rybaxis klectrica King. 



This is probably the commonest species of Pselaphidce in Tas. 

 mania. It may be taken abundantly in moss and fallen leaves, 

 and on fence-tops, etc., at dusk. 



Var.A. — Numerous Tasmanian specimens before me appear to 

 represent a variety. They dififer from the typical form in being 

 slightly larger, slightly more depressed, and with the small basal 

 fovefe of elytra rather more pronounced. The colour al-so is 

 rather brighter. Some of the larger of these specimens closely 

 resemble R. 5-foveata, but have the eleventh joint of antennae 

 distinctly smaller. 



PSELAPHUS FOVEIVENTRIS, n.sp. 



(J. Bright reddish-castaneons, palpi and tarsi paler. Very 

 sparsely clothed with pale depressed pubescence; elytra not 

 fringed at apex, but with the pubescence forming three feeble lines 

 on each. Undersurface with dense white pubescence on base of 

 abdomen, on mesosternum and at apex of prosternum. 



Head rather narrow, with a continuous median groove but 

 somewhat irregular between eyes, without tubei'cles between eyes. 

 Antennas long and thin, all the joints distinctly longer than 

 wide, first longer than the three following combined. Palpi elon- 

 gate, club of apical joint elliptic, rather more than one-third the 

 length of peduncle, which is moderately curved. Prothorax much 

 longer than wide, rather strongly convex; with four subbasal 

 fovese, all feebly connected together, the outer ones produced 

 slightly backwards. Elytra much shorter than abdomen, not 



