192 REVISION OF THE AUSTRALIAN CURCULIONID^, 



description leaves no doubt in my mind but that it belongs to 

 Decilaus, and consequently I refer it to that genus. Acalles 

 appears to be one of the old genera, to which (like Chryso7nela 

 and Gryptorrhynchus) all doubtful or obscure species were referred; 

 the European A. camelus appears to be recognised as its type; 

 regai'ding that species therefore as typical of its genus, Decilaus 

 differs in having much shorter tibiae, femora distinctly grooved, 

 the posterior not extending to apex of abdomen, elytra wider 

 than prothorax at the base, and the whole body shorter and 

 stouter. 



With long erect setose hair hispidus, n.sp, 



Without long setose hair. 



Ninth elytral interstice wide and highly polished xanthorrhoece, n.sp. 



Nintli interstice normal. 



Prothoracic punctures comparatively small and 

 squamose. 

 Head with a median carina. 



Prevailing colour of scales white Utoralis, n.sp. 



Prevailing colour of scales brown perdiius, Pasc. 



Head without median carina squamostis, Pasc. 



Prothoracic punctures large or very large, irregu- 

 larly or not at all squamose. 

 Intercoxal process of abdomen without lateral 

 sulci. 

 Head with large punctures equal througliout.. subterraneus, n.sp. 

 Head with moderately large punctures between 

 eyes but small on vertex. 

 Suture of 1st and 2nd abdominal segments 



traceable throughout distans, Pasc. 



Suture entirely obsolete in middle fovewentris, n.sp. 



Intercoxal pfocess of abdomen with lateral trans- 

 verse sulci. 

 Klytral punctures wider than interstices. 

 Second abdominal segment distinctly shorter 



than 5th foraminosus, Pasc. 



Second segment equal to 5th moluris, n.sp. 



Elytral punctures not, or scarcely wider than 

 interstices. 

 Interstices with sparse minute punctures 



and without granules memnonius, Pasc. 



Interstices with minute granules and with- 

 out punctures crihricollis, Pasc. 



