TERMITES FROM THE AUSTRALIAN REGION. 
size, less rounded heads, and Id- jointed anteiniae. Mjciberg's species 
is described as having tlie antennal joints rounded and short ” ; 
in the pro])osed new species they are rather elongate. 
Hioloijy. Described from a colony collected by Dr. .). V. Illing- 
worth (March, 1921) in the interior of a sugar-cane. There were no 
eggs or very young larvae in the connunnity, but adolescent soldiers 
and workers and nymphs witli short wing-stnmps were nnmerons. 
The apterous queen described above, and another somewhat less 
developed, were clearly not of the usual ty])e, being ergatoid in the 
form of the head and pronotum. Although the characteristic type 
of apterous queen is not rare in Australian Mwroceroterme.s, the 
above form has not been found previously by the writer in this or 
any other genus. The Palm Island specimens (D.K.H., 26.!). 20), 
comprising soldiers and workers only, were found under a log, the 
interior of which ajipeared to be considerably damaged by them. 
Microoerotermes boreus, n. sp. 
Plate IIP, figs. 87, 88 ; Plate VI.. fig. 192 ; Plate IX., fig. 1!)8 ; 
Plate VII., fig. 219. 
Imago. 
Similar to M. serrafvs (Frogg.), from which species it is dis- 
tinguished by its lighter colour, head and thorax more reddish 
(chestnut), postclypeus distinctly paler, pleura and legs ochraceous 
tawny, wings niucli longer and wider, eyes larger and more prm 
minent, ocelli larger and pronotum longer. 
Measurements . — 
Length with wings 
„ without wings . . 
Head, base of apex of labrum, long 
,, base to clypeofrontal suture, long 
,, wide 
Eyes, diameter 
Pronotum, long 
,, wide 
IVings, fore wings, long 
„ „ wide 
,, hind wings, long 
,, wide 
” . ” 
Tibia iii, long 
Abdomen, wide 
(^UEBN. 
Total length, 21 '00 mm. ; abdomen, wide, 4 'GO. 
[ 83 J 
mm. 
9 •25-9' 50 
5 • 25-5 ■ 50 
1-00 
0-59 
0-85 
O' 255 X O' 255 
0-42 
0-64 
8 '25 
2-10 
7'75 
2-10 
0'80 
0-34 
