302 Transactions. 



Head moderately finely and irregularly punctured, middle of occiput 

 generally smooth and with a slight impression behind ; it is immersed up 

 to the moderately prominent subrotundate eyes. Labrum reddish. An- 

 tennae longer than the head and thorax, pubescent, 2nd joint short and 

 subglobular, 3-11 elongate and nearly equal. Thorax about a fourth 

 broader than long, its base only feebly rounded or truncate ; its sides well 

 roimded, widest near the middle and obtusely prominent there, more 

 straight-sided or feebly sinuate behind in the male ; posterior angles rect- 

 angular, but scarcely acutely prominent, the anterior deflexed and acute ; 

 the surface irregularly, distinctly, but moderately finely punctured, basal 

 and lateral margins distinct. Scutellum smooth, or with a single puncture. 

 Elytra as wide as thorax at the base, moderately rounded ; on each there 

 is a distinct, somewhat curvate carina or plica at the base just outside the 

 middle, and another near the side but distant from the base ; these are 

 testaceous, as are also, but less definitely, 2 or 3 of the interstices and the 

 apical portion, sometimes there are 2 less obvious plicae near the side ; there 

 are 3 or 4 striae on each behind, these, however, do not attain the apex ; 

 the punctation is moderately fine, not quite seriate, closer near the base 

 and irregularly duplicated near the middle ; the intervals are minutely 

 and densely sculptured. 



Underside nitid, sparingly pubescent, aeneo-fuscous, terminal ventral 

 segment paler or rufescent, distinctly but rather finely and not closely 

 punctate. Anterior coxae rather less widely separated than in P. suffusus. 

 Basal segment in the middle as long as the following three combined, 4th 

 not medially abbreviated, almost the same length as the preceding one, 

 5th plane, longer than the intermediate ones, very scantily pubescent, with 

 a well-marked foveiform apical depression. 



Posterior tibiae grooved near the extremity. Front tarsi with broad, 

 subcordate basal articulations, 2nd narrow at the base, deeply emarginate 

 at the apex, the 3rd with elongate and rather narrow lobes, claws thickened 

 near the base but less dentiform than in the New Zealand species. 



Female. — Ventral segments 4th and 5th somewhat violaceous, the former 

 rather shorter than the 3rd, the 5th simple, basal segment longer than that 

 of the male. Basal joint of front tarsi subtriangular. 



Var. a : Elytra with one elevated basal plica on each elytron ; this, as 

 well as the base and apex, is more or less testaceous, but there are no pale 

 discoidal streaks ; the serial punctures hardly at all duplicated. Thorax 

 more obtusely angulated laterally behind the middle, and therefore ap- 

 pearing more obliquely narrowed towards the shghtly projecting basal 

 margins. Terminal ventral segment with a deep fovea ; the 3rd, however, 

 is very slightly abbreviated in the middle. 



Length, 2|— 2f lines ; breadth, 1|-1| line. 



Raoul Island. 



Several specimens discovered under dead mkau leaves by Mr. W. L. 

 Wallace, in whose honour I have named the species. 



Group Galerucid^. 

 Psylliodes solanae, sp. no v. 



Compact, convex, oblong-oval, narrowed anteriorly, glabrous, nitid ; 

 viridescent, somewhat aeneous ; tibiae and basal 3 or 4 joints of antennae 

 testaceous, the remaining joints slightly infuscate ; posterior femora bronzed 

 brown. 



