716 REVISION OF THE AUSTRALIAN CURCULIONID^E, IX., 



Ch^etectetorus bifasciatus Bohem.; Mast. Cat. Sp. No. 5507. 



Upper surface densely clothed with scales of various shapes 

 and colours, sometimes forming fascicles. Prothorax with pale 

 brown scales, a blackish subquadrangular patch in middle of base; 

 sides and apex with elongate scales forming feeble fascicles in 

 places, a row of elongate scales on each side of middle, sub- 

 fasciculate in middle, a few others irregularly distributed. 

 Elytra with pale brown scales, a small patch of darker scales 

 about suture, an oblique white patch from shoulder (where it is 

 broadened) to near suture, a transverse patch of white or whitish 

 scales at summit of posterior declivity and a few pale scales at apex; 

 3rd, 5th, and 7th interstices subfasciculate, 3rd and 5th almost 

 equal; shoulders and apex subfasciculate. Under surface densely 

 covered with uniformly sized scales of a greyish colour, darker and 

 less uniform in colour on four apical segments of abdomen than 

 elsewhere. Legs with rings of pale and dark scales, sometimes 

 distinct, sometimes very obscure. 



Rostrum of $ about twice the length of width of apex, and 

 with punctures entirely concealed; in O longer and thinner and 

 with punctures partly visible on apical half. Scape of <J inserted 

 near and just passing apex of rostrum, in £ not reaching apex; 

 two basal joints of funicle moderately elongate, 1st longer than 

 2nd. Prothorax longer than wide; disc slightly convex, 

 depressed near sides and in middle; densely punctate, punctures 

 entirely concealed, sometimes with a feeble median carina showing 

 near base. Scutellum raised, slightly longer than wide. Elytra 

 parallel to near apex; striate-punctate, punctures concealed, 

 alternate interstices raised. Length 6|, rostrum 1J; width 2^, 

 variation in length 4 J-8J mm. 



Hob. — South- Western Australia. Common under bark and 

 widely distributed. 



The scales on this species are subject to great variation. On 

 some specimens the majority on the upper surface are mouse- 

 coloured, the dark prothoracic patch and the pale elytral stripes 

 being scarcely visible. On many, the prothorax has two large 

 fascicles at apex and two small ones on disc; several have a 



