OF NEW ZEALAND. 1085 



Head granulate ; eyes prominent. Antenna short, the basal 

 joint only partly visible from above. Thorax about as long as it 

 is broad, its sides regularly rounded, so that the front is but little 

 broader than the base, the lateral margins not widely explanate, the 

 channels somewhat indistinct ; there is a narrow central depression, 

 the surface is closely granulated. Elytra rather wider than -hhe- 

 thorax, rounded behind, scutellar region depressed ; they appear to 

 have rows of rather coarse closely - placed punctures, but when 

 looked at in certain ways they appear as if covered with short 

 transverse rugosities. 



This species is distinguished by its oviform thorax, which is only 

 slightly broader before than it is behind the middle. 



Length, 1 ; breadth, f line. 



Moeraki. I have seen one only, sent by Mr. Sandager. 



1934. C. longulus, n.s. Subparallel, moderately elongate ; 

 opaque, variegate, piceous and rufesceut, legs and antennae reddish, 

 club infuscate ; clothed with short, coarse, erect, fuscous and pallid 

 scale-like setae, the legs with fine setae. 



If it were not for the presence of squamiform setae this species 

 might be readily mistaken for C. chalmeri. The elytra are without 

 distinct elevations, but the suture is raised, and there are mere 

 traces of basal inequalities. The insect appears narrower and more 

 parallel-sided. Thorax widest near the front, the marginal channels 

 broader there than elsewhere ; with four depressions, as in C. chal- 

 meri two along the middle, the basal one the smaller, and two 

 large ones near the base, one at each side of the central pair. 



Underside opaque, fuscous, sparsely clothed with very small 

 slender setae. Prosternal process with slightly-raised lateral margins, 

 so as to appear bisulcate. There are not so many granules on the 

 sides of the prosternum as there are on the middle. 



Length, 1| lines ; breadth, quite | line. 



Moeraki. I have seen three specimens, all forwarded by Mr. 

 Sandager. 



Heterargus. 



Nov. gen. 

 (Sharp; Trans. Roy. Dub. Soc., 1886, p. 381.) 



Oculi minuti ; antcnnarmn clava abrupte biarticulata ; canalicula 

 subocularis lata et profunda ; pedes omnes sat distantes. 



The little insect for which this new generic name is proposed is 

 more nearly allied to Coxelus than to any other New Zealand form. 

 The eyes, however, are quite rudimentary, and the minute ciliated pro- 

 minence existing behind the eye in Coxelus is quite absent; the men- 

 turn is larger, and the front and middle coxa are slightly more 

 distant ; the last joint of the maxillary palpus is more acuminate, 

 and the basal joint of the antenna is not concealed, as it is in Coxelus. 

 The metasternum, ventral segments, and legs are but little different 

 from those of Coxelus. The only species yet discovered has the pro- 

 sternum between the front coxae traversed by two deep impressions. 



