228 INSECTS OF THE CAIRNS DISTRICT, NORTHERN QUEENSLAND, 



the clypeus broad, rounded at the angles and slightly so in front 

 and reflexed a little. Thorax transverse, smooth, densely pubescent 

 on the sides, all the angles acute and the base broader than the 

 apex and slightly bisinuate. Elytra rather broader than the 

 thorax, and twice as long, irregularly striated, coarsely punctured 

 in the striae, the interstices very narrow, and adorned with 

 numerous patches of yellow decumbent pubescence distributed on 

 the base, apex, and in two bands of round spots crossing the elytra 

 near the middle. The pygidium is densely pubescent or scaly, the 

 legs and under surface less so, the anterior tibiae are strongly 

 bidentate externally. 



Length, 3| lines. 



Hah. — Barron River. 



This is the only species of Popilia as yet described froni 

 Australia. 



Family DYNASTID^. 



27. ISODON GLABRICOLLIS. 



Oblong oval, black, nitid. Head small, finely punctate towards 

 the clypeal suture ; the clypeus rather rounded in front and 

 reflexed, with a minute tubercle at the apex ; the mandibles 

 strongly tridentate externally. Thorax scarcely broader than 

 long, quite smooth and convex, the sides and apex thickly 

 margined, the anterior angles acute and prominent ; the posterior 

 rounded, and the base broader than the apex and slightly rounded. 

 Scutellum broadly triangular, impunctate. Elytra not broader 

 than the thorax, and nearly twice the length, covered with rows 

 of square punctures, the first 7 rows from the suture having the 

 punctures much larger and thinner than those on the sides and 

 apex. The anterior tibise are very strongly tridentate, the 

 posterior very thick and spinose. The sterna are fulvo-villose. 



Length, 5| lines. 



Hab. — Mulgrave River, 



