190 Transactions. 



D. debile, Sharp. 9i8. Man. N.Z. Coleopt., p. 515. 



Ferruginous, moderately shining, minutely setose. Differs from 917 in 

 being more slender. 



Rostrum relatively longer, but of similar shape. Antennre inserted 

 medially. Thorax relatively more coarsely punctured. Elytra less rugose, 

 more distinctly punctate, but not quite punctate-striate, and tapering 

 towards the extremity instead of being parallel. 



S . Length, If lines ; breadth, |- line. 



Parua and Howick. 



Arecocryptus, Broun. Man. N.Z. Coleopt., p. 525. 



Body elongate, subdepressed, vestiture setiform, slender but conspicuous. 



Rostrum evidently longer than thorax, moderately slender, a little 

 dilated towards the base and apex, slightly arched ; imderneath, between 

 the middle and base, there is a conspicuous spiniform process, which is 

 furcate at its apex and directed slightly backwards, and on the lower part 

 of the head there is another spine directed forwards. The scrobes begin 

 at the apex, and are prolonged backwards to the lower and front part of the 

 eyes. Scape very elongate, moderately stout, slightly incrassate at the 

 extremity, inserted at the apex, and attaining the eye. Funiculus rather 

 longer than the scape, very slender ; basal 2 joints very elongate, 2nd cjuite 

 as long as but more slender than the basal one, 3rd also elongate but shorter 

 than the preceding one, 5th shorter than 4th, both, however, longer than 

 broad. Club oblong-oval, annulate. Head remarkably short, the nearly 

 smooth occiput narrowed anteriorly, so that the eyes seem very convex 

 and prominent. Thorax longer than broad, subovate, constricted in front, 

 base slightly bisinuate. Scutellum small but distinct. Elytra not twice 

 the length of thorax and rather wider and slightly biarcuate at the base, 

 gradually narrowed posteriorly. Legs moderately long and slender, tibial 

 hooks small. Tarsi with spongelike pubescence underneath, 2nd joint 

 broad, the 3rd still broader, with strongly developed lobes, the terminal 

 very slender and elongate, with long curved claws. 



Underside nearly plane, distinctly and moderately closely punctate, 

 with some fine slender pubescence. Coxse moderately separated. Meta- 

 sternum as long as the 2 basal ventral segments, the suture between these 

 segments sinuous. 



Female. — Rostrum more slender and arched, antennse inserted before 

 the middle, scape more slender and flexuous,_ without spines on the head 

 and rostrum. 



This is the most remarkable genus of the Cossonidre. The rostral and 

 interocular spines underneath, the long rostrum, outstanding eyes, apically 

 inserted antennae, and widely expanded lobate penultimate tarsal joint 

 form a combination without precedent. 



The more appropriate name Arecocryptus has been substituted for Can- 

 thorhynchus. The insect lives concealed near the base of the fronds of 

 Rkopalostylis (Areca) sapida. 



Arecocryptus bellus, Broun. 936. Man. N.Z. Coleopt., p. 526. (Plate XV, 



fig. 15.) 



Subopaque, fusco-rufous, funiculus red, vestiture pale yellow. 



Rostrum subcarinate along the middle, longitudinally rugose-punctate, 

 the coarse punctuation ceasing abruptly behind the eyes, and with an angular 

 fovea there. Thorax widest near the middle, rounded there, closelv and 



