1962 ] Darlington — Tachys 123 
Sloane). Measurements (of types, t. Sloane) : length 1.75; width 
O.75 mm. 
Described from 2 specimens from Narrandera, New South Wales, 
and later (1921, 203) recorded by Sloane from “sand banks and 
pebble beds” by the margins of the following rivers, all in New South 
Wales: Murray (at Mulwala), Murrumbidgee (at Narrandera), 
Cudgegong (at Mudgee), and Macquarie (at Narromine). 
Tachys fitzroyi n. sp. 
With characters of hobarti group as described above. Larger and 
slightly broader than most species of group; dark rufous, appendages 
not much paler; not very shining, reticulate microsculpture distinct 
above but not deeply impressed, and whole upper surface sparsely 
punctulate. Head .91 & .90 width prothorax; clypeus subtruncate or 
slightly emarginate, impressed at middle anteriorly so that it is sub- 
tuberculate each side at apex (in all specimens) ; frontal sulci sub- 
parallel, diverging posteriorly, extending across clypeus as sharply 
defined parallel grooves. Prothorax broadly subcordate; width/length 
1.33 & i.37, base/apex .85 & .85, base/head .75 & .78; sides rather 
broadly rounded for much of length, strongly converging posteriorly, 
abruptly sinuate before posterior angles; latter sub-basal, forming 
rather small c. rectangular prominences ; disc with middle line distinct, 
basal sulcus moderate, not foveate but vaguely punctulate. Elytra 
about 3/10 wider than prothorax (E/P 1.32 & 1.29) ; margin behind 
humeri finely scalloped and setulose; sutural striae entire, stria 2 
nearly entire but less impressed, stria 5 strongly impressed basally to 
humerus, striae 3-4 light and slightly irregular but plainly traceable 
except less distinct at extreme base, striae 6-7 at most faintly indicated ; 
apparent apical striole present but irregularly impressed, ending anteri- 
orly in a coarse impression; 3rd stria 3-punctate, anterior puncture 
before of elytral length and almost joining 3rd to 4th stria, other 
punctures near middle and behind % of elytral length. Length 2.5- 
2.8; width c. 0.9- 1. 1 mm. 
Holotype S (M. C. Z. Type No. 30329) and 22 paratypes all 
from the Fitzroy River a few miles north of Rockhampton, Queens- 
land, November 1957, taken by myself. They were in gravel and 
cobble stone river bars and occurred with Perileptus, which they 
resembled superficially. 
This is probably the supposed large form of Tachys murrumbid- 
gensis referred to by Sloane (1921, 203) as occurring with the smaller 
