CRYPTOCEFHALIDAE. 343 



This species to a great extent agrees with A . Julvxs, but it is a good deal 

 smaller, the head is moderately coarsely punctured but is without any 

 occipital impression ; the thoracic punctation is close throughout, the sides 

 are gently rounded except just at the base, where they are somewhat nar- 

 rowed and nearly straight ; the elytra are of equal width throughout, with 

 rather finer sculpture, and there is a distinct depression behind the smooth 

 scutellum. Pygidium just visible. 



A. sigtiafus, 3008, from Mount Arthur, may be easily separated by its 

 obviously less convex eyes, irregular thoracic punctation, some spots being 

 smooth, and by the greater bulk of the insect itself. 



Length. 3J mm. : breadth, 1| mm. 



Mount Te Arolia. One, found by mvself during November, 1893, at an 

 elevation of 2,500 ft. 



Group Chrysomelidae. 

 Cyrtonogetus gen. nov. 



The type of this genus is nearly related to Allocharis (Man. N.Z. Coleopt., 

 p. 1306), but the body is not at all elongate-oval, being robust and oblong. 

 The metasternum has the front margin distinctly elevated and truncate 

 between the coxae, instead of being strongly, almost sharply rounded. The 

 basal ventral segment is hardly as long as the following three, and its frontal 

 suture is nearly quite straight. The posterior coxae are only a little farther 

 apart than the intermediate. Tibiae gradually incrassate towards the 

 extremity, each with a broad external groove there. Tarsi stout, basal 

 two joints cordiform, 3rd entire and densely setose underneath, slightly 

 emarginate, the claws of the terminal aj^pendiculate at the base. 



In sternal structure it is similar to Caccomolpus, which, however, is com- 

 posed of small subrotundate species with differently formed legs. 



3778. Cyrtonogetus crassus sp. nov. 



Oblong, moderately convex and nitid, with a few fine setae on the labrum ; 

 aeneo-niger. legs piceo-castaneous, labrum and antennae rufescent. 



Head immersed up to the eyes, finely punctate, more closely on the fore- 

 head, with a smooth angulai- space behind, the interantennal suture strongly 

 curved. Eyes subdepressed, distinctl}- faceted, very transverse. Thorax 

 finely marginate except at the middle of the base and apex, the latter feebly 

 emarginate, with obtuse but somewhat prominent angles, the base very 

 slightly rounded, with rectangular angles ; it is hardly twice as broad as 

 long, a little wider near the middle than elsewhere, gently narrowed but not 

 curved behind ; its surface finely and rather irregularly punctured, the 

 space between the middle and each side more distantly. Scutellum broadly 

 triangular, smooth. Elytra closely applied to the thorax, fully double its 

 length, slightly broader than it is at the base, their sides finely margined, 

 gently rounded, widest near the hind thighs, more curvedly narrowed 

 posteriorly ; on each elytron there are 9 somewhat irregular series of fine 

 punctures, the sutural series alone reaches the extremity and is bent out- 

 wardly near the base, where there is a short scutellar series. 



Antennae stout, rather longer than the head and thorax ; their basal 

 three joints nearly glabrous, the others bear fine pubescence ; 2nd joint 

 smallest, a little longer than broad, about half the bulk of the darker 1st, 

 3rd slightly longer than succeeding ones, joints 9 to 11 rather more slender 

 than preceding ones, the terminal elongate-oval. 



