128 
Psyche 
[December 
viridis) ; and, in the tropics, at Byfield (N. of Yepoon) in semi-rain 
forest, and c. 40 miles S. of Mackay in good savannah woodland. 
Trichosternus spec new species 
Form nearly of T . superbus, with strongly cordate prothorax and 
oval elytra narrowed anteriorly; purple or purplish, not strongly shin- 
ing, elytra slightly duller. Head large, slightly more than 4/5 width 
prothorax; eyes small, genae slightly wider than eyes, subparallel an- 
teriorly, rounded and slightly narrowed to neck ; antennae rather long, 
passing base of prothorax by about 2 segments; 2 supra-ocular setae 
each side (all specimens). Prothorax c. 2/5 or less wider than long 
at middle; base slightly more than 3/4 width apex; apex broadly 
emarginate except rounded toward sides, with angles (marginal gut- 
ters) slightly advanced; apex not margined; base broadly emarginate 
except oblique near angles, rather vaguely margined ; sides rounded 
through much of length, strongly sinuate before basal angles; latter 
right or slightly obtuse, not much blunted ; lateral margins rather 
narrow anteriorly, broader posteriorly, each with several (usually 4 
or 5) setae at and before middle and 1 before basal angle; disc with 
middle line distinct, transverse impressions weak; baso-lateral foveae 
rather deep but vaguely limited, with weak convexities toward lateral 
margins, and closely transversely strigulose, the strigulations extending 
onto disc across base. Elytra c. 1/4 wider than prothorax, widest 
behind middle; forming c. right (slightly obtuse), slightly dentate 
angles at humeri; striae indicated by weakly punctate impressions; 
even intervals slightly convex, odd ones 3, 5, and 7 subcostate to 
costate on disc, 7th strongest and sharply carinate anteriorly; no 10th 
interval; each 3rd interval usually 2-punctate, with punctures behind 
middle and on declivity. Mesosternum and prosternal process not 
setose. Male front tarsi slightly dilated, 3 segments squamulose. 
Length 24-30 ; width 8.5-10.3 mm. 
Holotype d (M. C. Z. Type No. 30,363) and 33 paratypes all 
from the Mt. Spec plateau (Paluma Range), c. 40 miles north of 
Townsville, North Queensland, 2000-3000 ft., Nov. 1957 and Feb. 
1958, taken by the Darlingtons in or on the edges of rain forest. 
In spite of their wide geographical separation, this species and 
super bus Cast, (of New South Wales) may represent one original 
stock. The new species resembles superbus in form, color, and many 
details, but differs from it in having only 2 (instead of 3) supra- 
ocular setae on each side and in having better defined posterior pro- 
thoracic angles. 
