TERMITES EROM THE AUSTRAJJAN REGION. 
Worker. 
Colour. Head pale orange yellow. Irons whitish, a dark ferru- 
ginous spot at each end of clypeus ; remainder of insect cream 
colour. 
Head. With scanty pale setae; nearly as wide as long, widest 
about the middle, posWior half almost hemispherical ; frons flat ; 
fontanelle small, but (list' net ; clypeus and labrum similar to imago. 
Antennae 17- or lb-jointed, segmentation of proximal joints variable, 
Thorax. I’ronotum similar to that of imago ; the posterior 
niargin of mesonotnm and metanofum broadly rounded, with in- 
distinct emargination in the middle. 
LeijH. 
setae. 
Short and moderately stout, with scanty, pale, short 
Abdomeui. Moderately slender, tapered to the bluntly-pointed 
apex , with ])ale, short setae, as on thorax, rerci moderately 
larue. 
.1/ easuretneMs. 
d’otal length 
Mead, base to apex of labrum, long 
wide 
.. deep 
I’ronotum, long 
,, wide 
Tibia, iii, long 
mm. 
4 - 50 - 5-00 
1-31 
1*14 
0-57 
0-44 
0-82 
0 - 75 - 0 -80 
Localtfies. >South-west Australia : Swan lliver (type locality). 
Dwellingup. Ludlow, Mundaring, Albany. Denmark, (fosnells. Lion 
Mill, Boyanu]) (4. Clark). 
A ffinities. I lie imago and soldier are distinguished from all other 
described Australian species by their larger size. The imago is dis- 
tinguished from L. ferox and L. occidinis by its much paler colour 
and two or three additional antennal joints. The imago of L. ragus 
vs unknown, but it is almost certain to be a very small form closely 
allied to L. rennsfiis. 
In addition to the above, Mr. Clark has collected several colonies 
of soldiers and workers at Lion Mill which appear to belono- to an 
undescribed species. 44ie soldiers in these colonies are intermediate 
m size between L. dnrkUwvX L. Jerox and have antennae with 15 or 
D joints, very rarely with 1/ joints. As none of the soldiers as- 
sociated with the alate form of L. darki are as small as these thev 
may be regarded as indeterminable until more complete series are 
to hand. 
