294 COLEOPTERA 



I think I am right in considering the above forms the sexes of one 

 and the same species ; but I am not quite sure about it. 



Akaroa, igth Dec., 1874; Westland, West Coast (Wakefield). 



Monocrepidius. 



Sharp ; Ann. Mag. Nat. Hist., May, 1877. 



The following structural characters will enable the New Zealand 

 entomologists to readily identify this form : Antenna slender, filiform. 

 Forehead wide in front and only slightly curved, without raised margin, 

 but overhanging the very short clypeus ; antennal spaces wanting ; the 

 cavities widely distant. Prosternal process long, slender, and straight. 

 Mesosternal cavity elongate and narrow, quite parallel-sided, extending 

 back to quite the intercoxal suture, its side margins very thin and 

 scarcely raised. Femoral portion of hind coxal plate well developed, 

 but much shorter than the rather long trochanteral portion. Tarsi with 

 third joint well developed ; fourth joint underneath large, membraneous, 

 above grooved almost to its base for the insertion of the fifth joint. 



520. M. exsul, Sharp; Ann. Mag. Nat. Hist., May, 1877. M. 

 fuscus, tomentosus, opacus ; antennis pedibusque flavis, his sat elongatis, 

 filiformibus, articulo tertio quam secundus paulo longiore, his conjunctim 

 quarto sequalibus ; prothorace dense punctate, angulis posterioribus 

 elongatis, acutis, sat divergentibus ; elytris fortiter striatis, densius 

 pubescentibus. 



Long., 11-13 mm. 



This species is allied to the Australian Monocrepidius rectangulus, 

 but is smaller and more delicately sculptured. As it has only been 

 found at the port of Wellington, it is possible it may have been intro- 

 duced into New Zealand ; I do not think, however, that it is a described 

 species. 



Wellington, February, 1875 (Mr. Wakefield). 



NOTE. I am indebted to Mr. J. Buchanan, of the Colonial Museum, 

 for two specimens. 



521. M. SUbrufuS, n.s. This species may be recognized by 

 its more convex prothorax. Colour reddish, body quite nude. The 

 head is pitchy-red, and closely punctured. The prothorax is very 

 closely and finely punctured, with an elongate dorsal depression behind, 

 which is almost divided by an indistinctly-elevated line, its disc is rather 

 convex, and the hind angles less acutely produced than in M. exsul. 

 The elytra bear distinct, rather finely punctured striae ; the interstices 

 are almost flat and finely rugose. The under-side is punctulate and 

 rugulose. Antenna, reddish, legs testaceous. The apex of each elytron 

 is obliquely truncated. 



Length, 6 lines. 



I have one very much mutilated example, which was found by Mr. 

 T. F. Cheeseman near the Wairoa (South). 



