BY WILLIAM MACLEAY, F.L.S., &C. 315 



convex interstices, each stria marked with hxrge squai-e punctures 

 on the basal half. The legs are piceous, the tibise roughly punc- 

 tate and setose, the sterna thinly punctate^ the last abdominal 

 segment large and deeply excavated. This last is no doubt a 

 sexual character. 



Length, 10 lines. One specimen, a male. 



Hob. — Mossmau River. 



63. Hybrenia angustata. 



Of narrower form than the last described species, black, sub- 

 nitid, palpi and tarsi reddish. Head punctate, eyes contiguous, palpi 

 very broadly triangular, the last joint of the antennae not larger 

 than the preceding one. Thorax about as long as broad, densely 

 punctate, rather convex, rounded at the anterior angles, rectan- 

 gular behind, narrowly margined and nearly truncate at the base 

 and with three shallow transverse depressions close to the base. 

 Elytra a little wider than the thorax, pointed at the apex, elongate, 

 with eight deep striae on each elytron and a short sutured one 

 (shorter than in ff. laticollis), each stria tilled with deep square 

 punctures most deeply marked on the basal portion. The under 

 surface is more densely punctate than in H. laticollis. 



Length, 7 J lines. 



Hab. — Cairns. 



64. Hybrenia suBLiEvis. 



Oblong, oval, black, nitid. Head finely but not densely punc- 

 tate, eyes close, not contiguous. Thorax about as broad as long, 

 very thinly punctate, rounded at the antei'ior angles, square at the 

 posterior, lightly transversely impressed near the base, and 

 bisinuate at the base. Elytra broader than the thorax and four 

 times the length, convex, irregularly and ragosely punctate, with 

 eight lightly marked fine striae on each elytron The legs are 

 densely punctate and shortly setose. 



Length, 7 lines. 



Hah. — Cairns. 



