388 



a very pale-fawn colour to sooty; with numerous stout scales 

 scattered about, and in places compacted into fascicles. 



Head with numerous and mostly-concealed punctures; 

 with a feeble medio-basal ridge. Rostrum long and thin, 

 sides lightly incurved to middle ; with rather dense and not 

 very small punctures, more or less concealed on basal third. 

 Antennas thin ; scape inserted two-fifths from apex of rostrum, 

 the length of funicle ; second joint of funicle distinctly longer 

 than first. Prothorax moderately transverse, sides strongly 

 rounded, base bisinuate and more than twice the width of pro- 

 thorax ; with a very feeble median ridge. Elytra rather short, 

 sides dilated to beyond the middle, base trisinuate, median 

 sinus small, the others large, shoulders clasping prothorax ; 

 with rows of large round punctures, becoming smaller pos- 

 teriorly ; interstices not separately convex, with feeble swell- 

 ings supporting fascicles. Legs rather short; femora stout, 

 moderately dentate. Length, 9 mm. 



Hab.— 'New South Wales: Ebor (R. J. Tillyard). 



In general appearance strikingly close to the variety A of 

 Poropterus ruheter, but rostrum much longer and thinner, 

 abdomen not sulcate, and femora dentate. The long rostrum 

 (it is distinctly longer than the prothorax) seems as much 

 out of place in Decilaus as in Poropterus, but it has been 

 referred to the former on account of its femoral armature. The 

 outlines of the upper-surface are much as in D. auricomus and 

 D. hifurcatus. The dark parts of the derm are a rather wide 

 median space on the prothorax ; and on the elytra a rather 

 wide medio-basal space, narrowed at the basal third, and then 

 dilated so as to extend to about six interstices from the suture. 

 The rostrum is black, but diluted with red in front. The type 

 is evidently in perfect condition, but it is probable that the 

 derm on other specimens will be almost or entirely black. 

 As the basal segment of its abdomen is gently convex in the 

 middle, it is probably a female. On the upper-surface the 

 darker parts are mostly clothed with dark scales, and the paler 

 parts with pale scales, so that these parts are quite distinct 

 to the naked eye. Many of the paler scales on the elytra have 

 a faintly opalescent gloss. On the prothorax the stout scales 

 are numerous about the apex, and form four feeble fascicles 

 across middle. On the elytra they form feeble fascicles on the 

 third and fifth interstices, and are numerous at the apex, and 

 on the seventh interstice, and on the apical third of suture. 

 On the abdomen and legs the pale and dark - brown scales 

 appear to be mixed together in small spots. The prothorax 

 lias not been abraded, but portions of its derm are normally 

 visible, and are without punctures. 



