412 REVISION OF THE AUSTRALIAN CURCULIONID.E, 



distinct on the anterior pair, usually slightl}' curved; tarsi rather 

 short, claw-joint elongate. Elliptic or elliptic-ovate, convex, 

 striate, moderately squamose, winged. 



This genus is very close to Cryptorhynchus; compared with the 

 typical C. Lajmthi it differs in having the mesosternal receptacle 

 raised in front and much more cavernous, the prothorax more 

 decidedly bisinuate at the base, the tibiae sulcate-striate or punc- 

 tate and the clothing never fasciculate. The two genera, how- 

 ever, are remarkably close, but it appears to be as well not to 

 degrade Tyrtceosus into a section of Cryptorhynchus, as the latter 

 is in anything but a satisfactory state. 



The majority of the species occur in Australia or Tasmania, 

 but several are recorded from New Guinea. All are arboreal and 

 very homogeneous in their general appearance. The sexual charac- 

 ters are either very slight or else are so strong^ marked as to 

 cause the sexes to appear as distinct species. I believe, however, 

 that they are very slight. The ciliation of the ocular lobes in all 

 the species is dense, verj' short and silvery, and appears as a 

 white rim when the head is removed; with head in position it is 

 traceable only with extreme difficult}^ It has not been made 

 use of here. 



Femora edentate. 



Elytral interstices impunctate.. inerm'u, n.sp. 



Ely tral interstices densely punctate crassirostris, n, sp. 



Elytral interstices divided into squares each con- 

 taining a puncture quadratoUneatns,n. sip. 



Anterior femora edentate urens, n. sp. 



Femora dentate. 



Punctures of metasternal episterna continuous 

 throughout. 

 Sutural interstices each with a row of rather 



large punctures i)nitator, n. sp. 



Interstices regular. 



Each of 3rd and 4th abdominal segments Nvith 

 with one row of punctures in middle. 

 Kostrum with strong punctures at base only. 

 Funicle with 1st joint slightly longer than 



2nd incallidux, Pasc. 



