135 



apex of abdomen. Length, 5 mm.; rostrum, 1J mm.; width, 

 2J mm. 



Hab. — Queensland: Cairns (Macleay Museum). 



The prothoracic scales, and a few along suture of elytra, of 

 the unique specimen under observation, have a greenish- 

 opalescent gloss; but unless closely examined this gloss is not 

 seen, although here and there a scale may show up green; on 

 the sides and apex of the elytra some of the scales have a 

 rosy gloss, but it is rather indistinct. 



Zenoporopterus, n. g. 



Head rather large, not concealed. Eyes small, ovate, 

 widely separated, coarsely faceted. Rostrum not very long, 

 wide and feebly curved. Antennae moderately stout; scape 

 inserted closer to base than apex and shorter than f unicle ; 

 two basal joints of the latter elongate ; club elliptic-ovate 

 and rather large. Prothorax subquadrate, base Insinuate, 

 constriction feeble, ocular lobes very obtuse. Scutellum 

 absent. Elytra subovate, at base very little wider than pro- 

 thorax, widest at about middle. Pectoral canal deep and 

 wide, terminated between four anterior coxae. Mesosternal 

 receptacle flat between coxae, but raised in front, emargina- 

 tion semicircular; cavernous. Metasternum much shorter 

 than the following segment; episterna rather narrow. 

 Abdomen large, sutures straight and distinct, first segment 

 as long as second and third combined, intercoxal process wide ; 

 third and fourth combined slightly longer than second 

 or fifth, fifth slightly longer than second. Legs moder- 

 ately long ; posterior coxae almost touching elytra ; 

 femora stout, edentate, very feebly grooved, posterior termin- 

 ated before apex of abdomen ; tibiae feebly compressed, 

 bisinuate beneath, in addition to terminal hook with a small 

 subapical tooth ; tarsi thin and somewhat shining, third joint 

 moderately wide, fourth long and thin. Elliptic ovate, 

 moderately convex, squamose, tuberculate, apterous. 



Very close to Roptoperus, but the third and fourth 

 abdominal segments with very narrow (though distinct) 

 sutures. 



This does not appear to be a very satisfactory character 

 to separate two genera, but in the species described below the 

 flanks of the elytra are inwardly oblique and highly polished, 

 a character rendering it exceedingly distinct. The head is 

 depressed at the base, and at the extreme base is shining. 



Zenoporopterus mirus, n. sp. 

 Black, rostrum and legs brownish-red, antennae pale-red. 

 Moderately-densely clothed with muddy-brown or ocherous- 



