638 COLEOPTERA 



narrowed in front, shoulders obtuse and a little elevated above, mode- 

 rately coarsely and closely punctured, the punctures not forming rows. 

 Hind legs long ; thighs strongly distended ; tibia bent ; tarsi long, not 

 slender, their basal joint half as long as the tibia. 



Length, i line. 



This is closely allied to P. testacea, and neither seem to belong to 

 any genus known to me ; their hind tibiae are grooved behind for the 

 reception of the tarsus, and their eyes are rather large and prominent. 



1 1 20. P. cyaneum, n.s. Shining, dark purplish-blue; the head, 

 legs, and antennae blackish, the latter finely, the legs more distinctly, 

 clothed with fine grey hairs. 



Head narrower than thorax, elongated anteriorly, its labrum promi- 

 nent ; eyes oviform, longitudinal, distinctly facetted. Antenna as long 

 as the body, eleven-jointed, moderately slender, inserted between the 

 eyes ; first joint sub-pyriform ; second short ; third and fifth equal : 

 fourth shorter than either of these two, all three nodose at their extre- 

 mity ; sixth and seventh equal, each shorter than fifth ; joints eight to 

 ten about equal, each shorter than seventh ; eleventh ovate, pointed, a 

 little longer than tenth. 



Prothorax margined, transverse, rounded laterally, its front angles a 

 little thickened, depressed and sub-acute, the posterior obtuse; the apex 

 is truncate, the base feebly bisinuated, and its surface is a little uneven 

 and moderately but rather distantly punctured. Scutellum small, trian- 

 gular. Elytra sub-ovate, moderately convex, widest behind the middle, 

 a little wider than the thorax at the base and rounded behind ; they are 

 margined and rather closely punctured. 



The legs are of moderate length ; the posterior femora considerably 

 dilated ; tibia a little widened towards the extremity ; the anterior 

 longitudinally carinated along their front face ; the basal joint of their 

 tarsi rather longer than broad, obconical ; second triangular ; third 

 short, bilobed ; fourth elongate, with small thick claws ; the tibiae are 

 apparently unarmed at the apex. 



Length, if line ; breadth, nearly i. 



I found a few specimens at Tairua. I have used Phyllotreta as part 

 of its name for the present. 



Group-CASSIDDXE. 



Head small, sub-globose, partially visible, or completely hidden by 

 the pronotum ; forehead inflexed ; epistome crescent-shaped. Labrum 

 transversal, emarginate. Mandibles short and broad, inwardly concave, 

 wide at their extremity, sub-truncate or denticulate. Maxilla feeble, 

 bilobed ; the inner wide and membraneous ; the external slender, bi- 

 articulate, coriaceous, ciliated. Maxillary palpi four-jointed. Under-lip 

 with sub-quadrangular under-chin, transversal ; the mentum of similar form, 

 a little wider, with tri-articulate feelers : the tongue small or moderate, 

 obtuse in front. Eyes oblong-oval, seldom rounded, more or less pro- 

 minent. Antenna with eleven joints, contiguous, or converging at the 



