172 



Ctenoplectron humerale, n. sp. 



Blackish, in some parts changing to dark brown ; labrum, 

 antennae, palpi, and tarsi more or less brightly- castaneous. 

 Densely clothed with short, brownish pubescence. 



Head with dense and small punctures. Eyes large and 

 reniform. Antennae long and thin, first joint stouter but 

 slightly shorter than third, second about one-third the length 

 of third. Prothorax almost as long as wide, hind angles 

 lightly produced, sides rapidly sloping down to front angles, 

 which are widely rounded off, base lightly bisinuate and with 

 three shallow depressions, of which the median one is vaguely 

 traceable to the middle ; with densely-crowded punctures of 

 small size, many of which are obliquely or transversely con- 

 fluent; marginal carina on each side acute on basal half, then 

 becoming obtuse and vanishing before apex. Elytra long 

 and thin, feebly diminishing in width from near the base, 

 striatum conspicuous; with very dense punctures transversely 

 arranged near base, but shoulders somewhat raised and 

 strongly transversely strigose. Four hind tibiae strongly 

 serrated on upper-surface; spurs to hind pair very unequal, 

 the longer slightly more than one-third the length of the 

 following joint. Length, 16-^-17 mm. 



Hah. — Queensland: Kuranda (H. W. Brown). Type, 

 I. 6097. 



Much larger than any previously described Australian 

 species of the family. The pubescence at the tips of the 

 abdominal segments and on the tibial serrations, although 

 dingy from most directions, from others appears to glow with 

 fiery-red ; on the upper-surface the pubescence from some 

 directions causes the derm to appear somewhat rusty, but 

 the apical portions of the elytra are really somewhat brownish. 

 On one of the two specimens before me the eleventh joint of 

 the antennae is slightly constricted at the apical third (on 

 the other both antennae are broken). 



Ctenoplectron rufobrunneum, n. sp. 



Pieeous-brown, in parts more or less reddish, antennae 

 and palpi paler. Densely clothed with short, brownish or 

 ashen pubescence. 



Head with small, crowded punctures. Eyes widely trans- 

 verse, subreniform. Antennae rather long and thin, first 

 joint slightly longer than third, second about half the length 

 of third. Prothorax almost as long as wide, sides strongly 

 rounded, hind angles feebly produced, front ones strongly 

 rounded off, base lightly bisinuate and with three shallow 

 depressions, of which the median one is continued almost to 



