544: REVISION OP THE AUSTRALIAN CURCULIONID.E. 



The eyes, ocular fovea, mesosternal receptacle and tibite are the 

 strongest features of this genus. The receptacle is very indis- 

 tinctly separated from the metasternum so that on a first glance 

 it (on account of its small size) appears to be absent; on probing 

 with a pin it is seen to be cavernous, although unless very closely 

 examined appearing to be very decidedly open. The species 

 described below resembles a number of species belonging to 

 Tranes, The ciliation of the ocular lobes is remarkably short. 



Derbyia laminatus, u.sp. 



Dark reddish-brown, shining. 8parsely clothed with yellowish 

 set*; on prothorax a seta in each puncture not (except at sides) 

 rising to general level; on elytra forming a single series on each 

 interstice. Under surface with paler and sparser setaj. Legs 

 (especially the tibife) more densely setose; tibise fringed beneath. 



Head with rather dense, round, shallow punctures. Rostrum 

 moderately curved, slightly wider at apex than at Ijase; feebly 

 grooved above scrobes; basal two-thirds coarsely j^unctate and 

 very feebly tricarinate; apical portion with sparse but distinct 

 punctures. Prothorax with moderately large round and well 

 defined but not deep or very dense punctures, punctures larger 

 and more crowded at summit of flanks than elsewhere. Elytra 

 striate, strife moderately deep and almost impunctate, a few small 

 punctures at sides; interstices convex, wider than stride, with 

 numerous transverse impressions. Metasternum with punctures 

 similar to but rather less numerous than those on disc of j^ro- 

 thorax. Two basal segments of abdomen each with two irregular 

 rows of smaller punctures, 3rd and 4th segments each with a 

 single row of still smaller ones; apical segment densely punctate. 

 Length 8, rostrum 2^-; width 4 mm. 



Hah. — N.W. Australia (type in Macleay Museum). 



The elytral interstices have the appearance of being formed by 

 successive slightly overlapping plates; the strife (except at sides) 

 are without distinct jninctures. 



