122 
Psyche 
[December 
times absent or obscured. Mesosternum anteriorly and prosternal 
process (sometimes slightly) setose. Male front tarsi narrow, without 
squamules; cf with i, 9 2 setae each side last ventral segment. Length 
22.5-26; width 7.9-9. 5 mm. 
Holotype $ (M. C. Z. Type No. 30,357) and 87 paratypes all 
from Mt. Spec plateau (Paluma Range), c. 40 miles north of Towns- 
ville, North Queensland, 2000-3000 ft., Dec. 1957 and Feb. 1958, 
taken by the Darlingtons, in rain forest; and 1, same locality, June 7- 
10? 1955, E. O. Wilson. 
This is similar to and perhaps related to T. subvirens Chd. of South 
Queensland, but subvirens has an entire mentum tooth (emarginate 
in nudipes) , posterior lateral pronotal setae just inside (not on) the 
margin, and lacks or nearly lacks rugulose sculpture on the base of 
the pronotum. 
Trichosternus soror Dari. 
I described this species (1953) from 3 specimens from Millaa Mil- 
laa, on the Atherton Tableland. I did not find it at this locality dur- 
ing my last trip, but found it on both the lower and upper western 
slopes of Mt. Bartle, Frere, at 2000-3500 and 3000-5000 ft., and on 
the east side of Mt. Bellenden Ker, at 3000-4500 ft. 
Although this small, bluish species has simplified male tarsi, like 
the preceding species, it may not be directly related to it but may be 
independently derived from a common ancestor perhaps resembling 
/ rater (below). 
Trichosternus f rater new species 
Slightly more slender than average of genus, rather convex; green- 
ish or bluish black, head and pronotum moderately shining, elytra 
somewhat duller. Head 4/5 or more width prothorax; eyes small, 
genae about wide as eyes, rounded and somewhat narrowed to neck; 
2 supra-ocular setae each side; antennae of moderate length. Pro- 
thorax subcordate, c. 1/4 wider than long at middle; base slightly 
narrower than apex; apex broadly enrarginate but angles otherwise 
scarcely advanced, apex not margined; base emarginate at middle, 
rounded toward sides, margined at sides ; sides broadly arcuate through 
much of length, moderately sinuate toward base; basal angles c. right 
or slightly obtuse, scarcely blunted ; side margins rather narrow ; not 
much wider posteriorly, each with 1 seta near or before anterior 1/3 
and 1 on margin at basal angle; disc with distinct middle line, less 
distinct transverse impressions, and moderate baso-lateral foveae which 
reach posterior margin but are separated from lateral margins by con- 
vexities; surface of disc nearly smooth except with some (variable) 
