AO Mr. C. N. Barker on new 
had ample grounds for describing them as distinct species. 
Its nearest allies amongst the South-African fauna known 
to me are C. durbanensis, m., and C. reichei, Chd. 
Chlenius clarksoni, sp. 1. 
Length 19 mm. Co )-212 (2) mm.; width 83-9 mm. 
Thorax length 5-53 mm.; width 63-74 mm. 
Apterous ; head, prothorax, and elytra reddish to glowing 
coppery bronze with vivid ereen reflections in strong lights ; 
epistome, labrum, mandibles, palpi, and first three joints of 
antenne piceous ; apices of palpi, labrum, and remaining 
joints of antennee reddish. 
Legs and beneath black, very shiny. Head densely 
coriaceously wrinkled and irregularly longitudinally plicate 
on either side; epistome and labrum smooth, shiny. 
Prothorax subtrapezoid but with a little sinuation above 
the posterior angles, apex bisinuate, frontal angles projecting 
but not sharp ;_ sides margined, gently rounded to about 
middle, thence, except for a slight sinuation above the 
posterior angles, straight to base ; base shallowly emargi- 
nate, disc convex, very declivous frontally, coriaceously 
wrinkled, median groove and subbasal foveze moderately 
deep and very shallowly connected by a subbasal depression. 
Elytra hardly wider than prothorax at base, humeral 
angle slightly projecting beneath it, sides nearly straight 
in male and a little more ampliate in female, broadly 
rounded to and very slightly sinuate above apex, convex, 
strie moderately deep and wide,.not or barely perceptibly 
punctate (puncturation is faintly indicated in some examples 
by faint spaced pin-pricks), mtervals raised and very finely 
shagreened, nearly smooth. 
Underside : pro-, meso-, and metasterna smooth save for a 
few. shallow transverse plications, the episterna densely, 
rugosely aciculate-punctate ; abdomen very finely wrinkled 
with rough plications laterally, the metepisterna, segments 
of venter laterally, and intermediate femora with some 
scattered pores bearing Yong red sete (in unrubbed 
specimens ). 
Very nearly allied to Chlenius cham, Chd., to which it is 
similar in size and shape, and which also appears to be 
wingless. Apart from its bright metallic coloration, not a 
trace of which is observable in cham, it differs from it in 
the following points. Antenne shorter (especially notice- 
able in the respective males), a little more compressed 
and more slender at bases of articles. The sculpture 
