BY E. W. FERGUSON. 451 



with white; elytra variegate with grey; undersiuface with a 

 broad, white vitta along each side; sette short, dark. 



Head convex, separated from rostrum by a transverse impres- 

 sion in front, curving backwards along inner side of supraorbital 

 crests; forehead with two, small granules; crests prominent, 

 directed upwards with a slight inclination outwards. Rostrum 

 not excavate, lateral margins not raised, median line slightly 

 depressed, base with feeble indications of two oblique ridges. 

 Scape moderately robust. Prothorax (2-5 x3nim.) with a strong 

 dentiform tubercle or spine about middle, a slightly smaller one 

 more anteriorly, and a small spine anterior to subapical constric- 

 tion; lateral margins, from middle to base, formed by a strongly 

 granulate ridge, sloping inwards to base; disc with median line 

 impressed anteriorly and posteriorly, sometimes carinate in 

 middle portion; set with small, upright granules, absent from 

 anterior and posterior portions of the disc, also with two, small 

 tubercles on each side of median line at base; sides with a few 

 granules above. Elytra (5 x 3-5 mm.) suboval, strongly rounded 

 to base, humeral angle with a small granule; disc striate-punc- 

 tate, punctures small, each set with a small seta; interstices with 

 small granules obscured by clothing, more evident posteriorly 

 and laterally. Undersurface rather feebly concave at base, set 

 with rather small punctures, obscured by clothing. Anterior 

 cox£e contiguous; tibiae feebly curved, almost straight. 



^. More ovate; undersurface convex. Dimensions: (J, 9 x 3 5, 

 ^, 9x;4 mm. 



Hah. — W.A.: King George Sound, Kellerberrin. 



Closely allied to C. anrigena and C. setosus, from the latter of 

 which it may readily be distinguished by its smaller size, and 

 smaller, prothoracic granules. The difi'erences between C spiui- 

 collis and C. aurigena are noted under the latter species. 



Some doubt has been cast on the assignment of this species to 

 Cuhicorrhyiichus. In general appeai'ance, the species is strongly 

 suggestive of a small Acantholophus, but the structure of the 

 rostrum is essentially that of a Cubicorrhynchus, and it is united 

 to the typical forms of the genus by intermediate species. 



