394 STUDIES IN AUSTRALIAN ENTOMOLOGY, 



sinuate in middle on base ; median line strongly impressed. 

 Elytra hardly wider than prothorax (15 x 8-5 mm.), parallel on 

 sides, truncate on base ; shoulders rounded ; apex widely rounded ; 

 a narrow space along base and sides very finely and closely granu- 

 late ; border reflexed ; two punctures on apical fourth of each 

 elytron placed longitudinally and widely apart. Prosternal epis- 

 terna covered with minute granules. Anterior tibiae widely 

 incrassate, 3-digitate externally, one or two fine projections above 

 the larger ones ; intermediate tibiae incrassate, external edge 

 serrate, a strong external spur near apex. 



Length 30, breadth 8-5 mm. 



Hob. — Cooktown District, Queensland. (Sent to me by Mr. N. 

 H. Gibson, from King's Plains Station, 28 miles S. W. from Cook- 

 town). 



This is the largest species of the genus yet described ; in shape 

 it is mid-way between G. levissmius, Chaud., and G. cacus, MacL; 

 being far less convex and cylindrical than G. cacus, but much 

 heavier and more convex than G. levissimns. Its general resem- 

 blance is to G. levissimus, from which its greater convexity 

 (especially of the abdomen) and larger size at once distinguish it. 



EURVSCAPIIUS TERRENUS, n.sp. 



Oval, I'obust, convex, Isevigate ; elytra impunctate, the border 

 reflexed and passing round the humeral angles. 



Black, shining. Head smooth, subquadrate, transverse (6-3 x 

 9-8 mm.); frontal sulci deep, short, sub-parallel, turning outwards 

 in front in a light sinuous course ; pre-ocular sulcus lightly 

 marked, short, not reaching eye ; pre-ocular process small ; eyes 

 deeply set in orbits, edge of orbits thickened and obtuse below 

 eye ; one supra-orbital puncture on each side. Antennae filiform, 

 attenuate to apex. Prothorax short, widely transverse (6-5 x 12 

 mm.), convex ; disc finely transversely rugulose ; sides strongly 

 and evenly rounded ; anterior margin lightly bisinuate ; base 

 obsoletely and widely sinuate on each side, not lobate ; anterior 

 angles obtuse, very little advanced ; posterior angles widely 



