3 2 
Psyche 
[March 
discal striae almost absent, inner ones very faintly indicated in good 
light, but abbreviated at both ends, stria 8 rather lightly impressed, 
parallel to margin, subinterrupted or punctate anteriorly; apical striole 
rather short, nearer margin than usual, but turning inward near 
anterior end, with a seta-bearing puncture on its inner side well back; 
two dorsal punctures on position of 3rd interval near or slightly before 
1/3 and 2/3 of elytral length. Inner wings probably fully developed 
but not examined. Lower surface essentially impunctate, not pubes- 
cent; prosternum impressed; mesosternal process not visible in the 
single specimen; tarsal claws slender, not serrate; c? with front tarsi 
apparently unmodified, 1 seta each side last ventral segment. Length 
c. 2.3 ; width 1.0 mm. 
Holotype cf (M. C. Z. Type No. 30335) from west slope of 
Thornton Peak (Mt. Alexandra), near Daintree, North Queensland, 
December 1957, taken by my son (P. F. Darlington) on the trunk 
of a small tree in rain forest at probably about 3,000 ft. altitude. No 
other specimens were found. 
This species is very different from any other known to me. In 
Sloane’s key (1921) it would probably run to couplet 43, but it can 
hardly be related to any of the species there named ( ectromioides , 
atridermis , etc.). Its arboreal habit suggests relationship to the nanus 
group of Tachys (which includes the Australian brunnipennis Macl.) 
and I have therefore compared it especially with the small, shining 
members of this group that occur in New Guinea ( acuticollis Putz., 
wallacei Andr.), but the new species differs in having a shorter apical 
elytral striole, very different anterior pronotal impression, non-serrate 
claws, etc. It apparently does not fit in any Oriental group of the 
genus recognized by Andrewes ( 1925) . 
References Cited 
Andrewes, H. E. 
1925. [Oriental Tachys.] Ann. Mus. Civ. Genoa, 51: 327-502, 4 pis. 
Blackburn, T. 
1888. [Australian Bembidiini.] Trans. R. Soc. South Australia, 10: 
38-45. 
1892. [ Tachys yarrensis.] Trans. R. Soc. South Australia, 15: 20. 
Broun, T. 
1893. Manual New Zealand Coleop., Part 5. 
Darlington, P. J., Jr. 
1962. Australian carabid beetles XI. Some Tachys. Psyche, 69:117-128. 
Macleay, W. 
1871. \“Bcmbidium” from Gayndah.] Trans. Ent. Soc. New South 
Wales, 2: 115-120. 
SCHAUM, H. 
1863. [ Tachys australis.'] Berliner Ent. Zeitschrift, 7: 90. 
