OF NEW ZEALAND. 83 



Cyclonotum. 



(Dej.) Erichson; Lacord. Hist, des Ins. Coleop., Tom. \.,p. 471. 



Mentum transversely quadrate, sometimes concave in front. Ligula 

 bilobed, its lobes rounded and ciliated. Labial palpi short, their last 

 joint snorter than the penultimate, obtusely acuminate ; the maxillary 

 palpi moderate, their last joint a little larger than the preceding, sub- 

 cylindrical, obtuse at the end. Mandibles coriaceous, hairy inwardly, 

 bidentate at the extremity. Labrum concealed by the epistome, hollow- 

 ed and hairy in front. Head deflexed, orbicular, with the epistome 

 more or less truncated. Antenna nine-jointed ; basal joint rather large, 

 somewhat clavate, second sub-globular, joints three to six very short, 

 very compact, widening gradually, seven to nine forming a large, elongate, 

 loosely articulated club. Scutellum rather large, triangular. Elytra con- 

 vex, sub-hemispherical, or oblong-oval. Legs short, femora wide, tibiae 

 furnished with small spines, in rows ; tarsi short, a little compressed, the 

 first joint of the posterior a little longer than the three following joints 

 taken together. Mesosternum narrow, perpendicular, provided with a 

 blade behind, which, between the intermediate coxae, joins an analogous 

 metasternal one. 



Body convex, sub-globular, oval or oblong. 



152. C. marginale, Sharp; Entom. Mon. Mag., June, 1876, 

 p. 21. Nigrum, nitidum, sat convexum, pedibus rufo-piceis, antennis 

 palpisque rufo-testaceis ; crebre punctatum, elytris seriebus punctorum 

 apicem versus profunde impressis ; tarsis posterioribus brevibus, articulo 

 basali secundo longitudine sequali. 



Long, corp., 4j mm. 



Head closely and finely punctured, and also with some larger 

 punctures, which are most numerous and distinct at the sides behind 

 the eyes. Thorax short, of the form usual in Cyclonotum^ black, with 

 the margins rather more dilute in colour, rather closely and finely 

 punctured, and rather shining. Elytra shining black, with the lateral 

 margins pitchy, each with ten rows of coarse punctures, which are most 

 deeply impressed towards the apex, the interstices are finely and 

 sparingly punctured, the lateral margins much explanate. Prosternum 

 with a large process (which is acute at its apex) in the middle in front. 



Mesosternal process stout, triangular, but with the sides depressed, so 

 that it appears almost linear. Middle of metasternum raised, the eleva- 

 ted part shining and sparingly punctured, limited by two lines converg- 

 ing towards the hind coxse, the sides densely and finely punctured 

 and quite dull. Legs short, pitchy, becoming more dilute towards the 

 tarsi; the inner (or upper) face of the hind tibia flat, shining, with a few 

 punctures, without any strise ; basal joint of the hind tarsus quite equal 

 to the second in length (indeed, when fully exposed, it is a little longer), 

 third rather shorter than second. 



Sent from Auckland by Mr. Lawson. 



This interesting species approaches in appearance to Cyloma law- 

 sonus ; compared with our European Cyclonota, it is aberrant in several 



