OF NEW ZEALAND. 1131 



to the front, the forehead is obliquely curved at each side and nearly 

 quite truncate in the middle. Eyes very large and prominent. An- 

 tenna slender, filiform, extending backwards to hind thighs, third 

 joint nearly twice the length of second, these, together, about as 

 long as the fourth, which is about one-third longer than the first. 

 Thorax longer than broad, gradually narrowed towards the recfcan~~ 

 gular front angles ; its surface distinctly, moderately, almost ru- 

 gosely punctured, with a considerable depressed, or explanate, area 

 near the basal angles very remotely punctate, the dorsal groove 

 well marked throughout. Scutellum rather longer than broad, 

 nearly smooth. Elytra gradually attenuated towards the apices, 

 these are, conjointly, rounded ; the striae are distinctly impressed 

 throughout, and are impunctate near the base, interstices rugulose. 

 Legs and tarsi very elongate. 



In No. 1186, and in this species, the fine lateral margin of the 

 thorax extends to the extremity of the basal angle ; at a short dis- 

 tance from this, in the former species, there is a second, inner, 

 slender carina along the angle ; in this species the carina is finer, 

 and is separated from the outer edge by an extremely narrow space 

 or groove. 



In this genus the posterior angles are very curious. When ex- 

 amined from above they appear narrow, elongate, and divergent, 

 but extend downwards, and, below, seem to have the apex turned 

 inwards; when looked at from the sides, they are seen to be pecu- 

 liarly and obliquely flattened, with a broad, thin, almost truncate, 

 extremity, very much like the blade of a propeller in a screw steam- 

 ship. 



Length, 6 ; breadth, If lines. 



Mount Egmont. One example. This is quite different from 

 0. basalis (also from Taranaki), which has much thicker, darker an- 

 tennae. 



OBS. Dr. Sharp's genus Asymphus is evidently nearly allied to 

 Oxylasma, but has a short clypeus. In Oxylasma the clypeus is 

 quite large ; the prosternal process, in Nos. 1186, 1726, and this 

 species, is rather broad and bent upwards between the coxae ; the 

 saltatorial mucro is deflected and ridged, the ridge being prolonged 

 forwards to within one-third of the length of the prosternum ; the 

 mesosternal cavity is nearly triangular, with narrow, carina-like 

 borders, and there is a well-marked suture behind it, between the 

 coxae. On page 679, near the bottom, the words referring to the 

 antennae, ''each shorter than the third," should be " each shorter 

 than the fourth." On the next page, description of antennae, second 

 line, should be " about half the length of the fourth." 



Asymphus. 



Nov. gen. 



(Sharp; Trans. Boy. Dub. Soc., 1886, p. 402.) 

 Frons anterius rotundato-truncata, hand marginata ; clypeus 

 brevis perpendicularis ; coxce posticae lamina exterius perbreve. 



