135 



the apical joint of the labial palpi is moderately securiform in 

 the male, that of the maxillary being elongate, subcylindric, and 

 truncate at the apex ; the tarsi are moderately broad, glabrous, 

 and nitid above, the joints of almost equal width, the fourth 

 somewhat emarginate at the apex. 



Port Lincoln ; among debris on swampy ground, not common. 



D. minor, sp. nov. Sat elongatus ; capite prothoraceque con- 

 junctis elytris parum brevioribus ; glaber ; sat nitidus ; 

 rufescens vel testaceo-rufus ; capite, elytrorum umbris non- 

 nullis, et sternorum abdominisque maculis nonnullis, piceis 

 vel rufo-piceis ; capite obsolete sat sparsim punctulato, pone 

 oculos sat fortiter dilatato ; prothorace sat fortiter transver- 

 sim rugato ; elytris subtiliter striatis, interstitiis sat planis, 

 obsolete sparsim punctulatis, postice truncatis. Long., 2f 1. ; 

 lat., A 1. (vix). 



Head oval, a little narrower than the prothorax, scarcely so 

 long as wide, and a little wider across the eyes than across the 

 dilated part behind them. There is an obscure impression on 

 either side between the antenna?. Prothorax nearly half again as 

 wide as long, subtruncate in front ; the dorsal channel fine, 

 lightly impressed, and abbreviated at both ends ; the anterior 

 angles quite rounded off; the sides narrowdy margined, moderately 

 rounded and scarcely sinuate behind, but with the hind angles 

 minutely subdentiform, the widest part about half again as wide 

 as the base, which is moderately lobed in the middle, the anterior 

 impression moderately defined. The elytra are about one-fifth 

 again as long as the head and prothorax together, and about one- 

 third again as wide as the prothorax, the widest part being near 

 the apex. The j)uncturation of their interstices is much feebler 

 than in D. tumidicej)s. 



Port Lincoln, in company with the preceding. 



PHORTICOSOMUS. 



p. 7'ohustus, sp. nov. Piceo-brunneus ; antennis palpisque mani- 

 feste, pedibus vix, dilutioribus ; antice leviter bisinuato, 

 postice quam antice vix latiori, angulis posticis acutis sub- 

 dentiformibus ; elytris postice adlatera sinuatis, fortiter 

 striatis, interstitiis sat convexis. Long., 7 1.; lat., 2^1. 



Head (across the eyes) slightly narrower than the base of the 

 prothorax ; the latter half again as wide as its length down the 

 middle, at its widest in front of the middle ; the front margin and 

 base of almost equal width, the front margin moderately concave 

 and gently bisinuate ; the frqnt angles much rounded, and not at 

 all produced forward as they are in P. tnucronatu)^, Blackb. ; the 

 central channel moderately impressed, and at both ends much 



