2 COLEOPTERA 



mity. Labrum variable, generally with one or more notches at 

 each side of the acute central portion, and not overlapping the base 

 of the mandibles externally. Antenna filiform, the basal joint sub-pyri- 

 form, second short. Mandibles very long, prominent, curved, acute, 

 and acutely dentate internally. Eyes large, very prominent, longitudi- 

 nally reniform, and very finely facetted. Head nearly as large as pro- 

 thorax, constricted posteriorly, and more or less concave between the 

 eyes. Prothorax transverse, narrowed behind, sides somewhat rounded. 

 Scutellum triangular. Elytra oblong, wider than thorax, obliquely 

 rounded posteriorly. Legs long and slender ; the three basal joints of 

 the male anterior tarsi slightly dilated inwardly, and more densely 

 ciliated on the inner than the outer edge. 



In the male there are seven segments of the abdomen, whereof the 

 penultimate is hollowed ; in the other sex there are only six. 



These characters coincide with the description given by Lacordaire 

 (Histoire des Insectes Coleopteres, Tom. i, /. 17 J but are somewhat 

 modified for application to the New Zealand species. 



1. C. tuber CUlata, Fabritius; White, Voy. Er. Terr., Ins., p. i. 

 Sub-cylindrical, obscure bronze. Elytra spotted with green ; shoulder 

 and base of the side of elytra with a yellowish lunule, con- 

 nected at the end with a spot in the middle, forming a transverse 

 band, which extends nearly to the suture, and is bent downwards at the 

 end ; on the outer edge it is dilated especially towards the upper lunule; 

 at the lower part it is but slightly attached to the terminal lunule of 

 elytra, which is narrowest in the middle ; the other parts of elytra are of 

 a blackish purple, with many minute greenish dots ; an interrupted line 

 on each elytron near the suture of larger spots; scutellum with the 

 sides nearly straight. 



NOTE. The head and thorax are finely rugose ; the latter bears a 

 dorsal, two oblique frontal, and a transverse basal, depressions; the 

 elytra bear many minute tubercules ; and the colour is usually brighter 

 than might be inferred from White's description. The size is variable, 

 about 5 lines in length. (T.B.) 



New Zealand. 



2. C. huttoni, n. s. This species is very similar in form 

 to C. tuberculata, but is less robust. The antenna are obscurely 

 coloured, the basal and four terminal joints are fuscous, the intermediate 

 tawny. Labrum cream-coloured, with two semicircular excisions at each 

 side of the centre ; the outer the wider. Head and thorax obscure 

 bronze, rugosely sculptured, and with depressions on each similar to 

 those of the preceding species. The elytra are fuscous and lustreless, 

 covered with minute irregularly-disposed tubercules, and quite destitute 

 of the conspicuous green foveoles which decorate C. tiiberculata ; the 

 lateral stripe of each elytron is dull-white, the humeral lunule is inter- 

 rupted so that it is quite distinct from the middle one, and is somewhat 

 prolonged inwardly, and the posterior is also separated from the medial. 

 The legs and tarsi are nearly destitute of bristles ; they are infuscate, 

 and not at all metallic. 



