268 Mr. F. Bates' Descriptions of 



intermediate tarsi are strongly, and those of the anterior 

 more broadly, dilated in the $ than in the $ . 



I have received specimens o^ Heterocheira australis from 

 Swan River, West Australia. 



DipliyrUynclius ovalis, n. sp. 



Long. 2 h lin. — Elongate-oval ; entirely bronzed-green, 

 shining, the underside very dark bronzed-brown and 

 slightly iridescent, organs of the mouth and base of 

 antenna dark-red ; head and thorax very finely punc- 

 tulate ; on each elytron nine rows of faint punctures, most 

 perceptible at the sides and apex, intervals minutely 

 punctulate, posteriorly and at the sides (on their apical 

 half) the elytra are rather strongly striated; prothorax 

 gradually curvedly narrowed from the hind angles, the 

 median basal lobe broadly rounded behind. 



Hab. — New Caledonia. One example, $. 



This species must be very close to D. Nicobaricus, 

 Redtenb., but he gives his species as having the antennse, 

 legs, and inflexed margins {= ejjipleural fold) of elytra 

 brunneous. From D. chalceiis, Fairm., and the species 

 described beloAv, it may be at once distinguished by the 

 prothorax gradually ciu'vedly narrowed from the hind 

 angles, the apex narrower, and by the faint punctuation 

 on the elytra ; from D. (^Acanthosternus) Halorageos, 

 Montrouz., it may be known by its much larger size and 

 differently formed prothorax. 



D. Caledonic7is, n. sp. 



Long. 2^- liu. — Oblong, sub-parallel; shining; elytra 

 of a rich castaneous-brown with a slight brassy tinge, the 

 prothorax (except the margins) darker, legs and antennse 

 red, underside reddish-broAvn ; head transversely depressed 

 across the front, finely punctured ; antennary orbits con- 

 vex ; prothorax very minutely punctulate, moderately 

 rounded at the sides, and more contracted anteriorly than 

 posteriorly, the median basal lobe truncated behind ; elytra 

 oblong, subparallel, each with nine lightly impressed punc- 

 tured stride, much stronger at the apex ; intervals sparsely 

 and very minutely punctulate, and convex at the apex. 



Hab. — New Caledonia. One example, $ . 



The form of this species closely approaches that of 

 Ileterocheira australis. 



