OF NEW ZEALAND. 117 



side ; it is moderately punctured. Elytra longer than broad, consider- 

 ably wider than the thorax ; their punctation is arranged in rows so 

 that they appear somewhat striate. Abdomen punctulate and pubescent. 



It may be at once separated from O. hebes by its smaller size, 

 smaller sulcate prothorax, and larger elytra. 



Length, ij ; breadth, nearly J line. 



I found my specimen near Whangarei Harbour. 



217. O. agrestlS, n.s. Shining brownish-black, coarsely punc- 

 tate. Palpi and tarsi yellowish, legs brownish-testaceous ; the five basal 

 joints of the antennae shining, the others dull black. 



Head, save the antennal orbits, coarsely punctured and rather uneven. 

 Antenna with their first joint dark red, the next four pale red. Pro- 

 thorax broader than the head but narrower than the elytra, transversal, 

 with depressed and obtusely rounded front angles, narrowed towards 

 the base, its posterior angles distinct; there are two more or less 

 obvious basal depressions, divided by a smooth median space, the only 

 part not rather coarsely punctured. Elytra about twice the length of 

 the prothorax, sub-truncate behind ; each obliquely depressed near the 

 middle, somewhat irregularly punctured, though quite punctate-striate 

 behind near the suture. Abdomen a little longer than the elytra, punctu- 

 late and pubescent. Legs simple. 



This is the most coarsely sculptured of its allies. 



Length, if; breadth, J line. 



I found one example in the vicinity of Whangarei Harbour. 



218. O. spadix, n.s. Head and thorax dark red; elytra and 

 hind-body castaneous, the former more obscurely coloured behind ; 

 legs testaceous. 



Head broadly depressed on each side of the middle, smooth in front, 

 with moderately rough but indefinite sculpture. Prothorax intermediate 

 in breadth between the head and elytra, as much narrowed in front as 

 behind, with rectangular posterior angles ; there are two broad longi- 

 tudinal depressions, one on each side of the middle, and another near 

 each hind angle ; its whole surface closely punctate. Elytra not twice 

 the length of the prothorax, closely punctured, almost striate. Abdomen 

 much longer than the elytra, punctulate and pubescent. Antennce, with 

 the first five joints shining red, joints three to five narrow, six to ten 

 rather broader than long and of a dull blackish colour, as well as the 

 obtuse terminal joint. 



Allied to O. agrestis but readily distinguished therefrom by the 

 difference in sculpture ; and from O. snldthorax by the absence of basal 

 foveae on the head. 



Length, ij; breadth, \ line. 



I found one individual only, I believe, at Parua. 



219. O. tectum, n.s. Moderately shining, chestnut brown, head 

 and elytra darkest, legs testaceous, last six joints of the antennae blackish 

 and dull, the others reddish. 



