Broun. — Bexyision of the New Zealand Cossonida\ 171 



Rhinanisus, Broun. Man. N.Z. Coleopt., p. 805. 



Subdepressed, moderately broad, finely pubescent. 



Rostrum more than half the length of thorax, contracted behind the 

 middle in both sexes, broad in the male, cylindrical, but never slender in 

 the female. Head rather broader in the male ; the nearly smooth occiput 

 does not extend, even in the female, as far as the eyes, there being a punctate 

 space behind these, which are only moderately prominent. Scape stout, 

 rather short, gradually thickened, inserted just before the middle in both 

 sexes, it attains the front of the eye. Funiculus 5-articulate, 2nd joint 

 hardly longer than the 3rd. Club large, ovate, annulate near the extremity. 

 Thorax triangularly ovate in the female, broader and more rounded near 

 the base in the male, constricted near the front. Scutellum small. Elytra 

 elongate, parallel, equalling the thorax in width, apical margins simple. 

 Tarsi pubescent underneath, 3rd joint slightly dilated, excavate above and 

 sublobate, the female less so. 



Underside plane, rostrum deeply grooved behind. 



The species composing this genus are only about half the bulk of 

 Pentarthrum ; the antennal insertion, form of the rostrum, subdepressed 

 body, and less widely separated coxa; distinguish them from that genus. 

 Rhinanisus differs from Euofhryum in the much less prominent eyes, 

 longer scape, simple elytral margins, more lobate 3rd tarsal joint, less robust 

 body, and different rostrum. 



Rhinanisus fulvicornis, Broun. 912. Man. N.Z. Coleopt., p. 512. 

 (Plate XV, fig. 9.) 



Shining, dark red, vertex piceous, antennae fulvescent ; pubescence 

 scanty, fine, yellowish, and quite perceptible. 



Rostrum rather deeply incurved between the middle and base, the 

 frontal portion almost as broad as the head, more finely and less closely 

 punctured than the basal. Head closely and, in proportion to the small 

 size of the insect, moderately coarsely punctured to behind the eyes ; this 

 sculpture, in conjunction with the dark colour, render these organs indistinct ; 

 occiput shining but not perfectly smooth, narrowed in front. Thorax 

 longer than broad, widest and a good deal rounded near the base ; disc 

 somewhat flattened but not impressed longitudinally, subfoveate near the 

 middle of the base, moderately distinctly but not closely punctured. Elytra 

 punctate-striate, the striae, however, not at all deep ; interstices with in- 

 distinct serial punctures, and in some aspects appearing rugose. 



Female. — Rostrum slightly longer, narrower, more shining, and finely 

 sculptured ; the thorax more gradually narrowed anteriorly. 



3 . Length, 1 line ; breadth, nearly J line. 



Whangarei. One of each sex. 



"&"" 



R. parvicornis, Sharp. 913. Man. N.Z. Coleopt., p. 513. 



Subdepressed, moderately nitid, ferruginous, strongly punctate. 



Thorax slightly constricted. Elytra strongly striate-punctate, interstices 

 fine y punctured, with very short indistinct setae. Rostrum opaque and 

 thick in the male ; longer, more slender, and shining in the female. 



Length, 1 line. 



Auckland. 



