TERMITES EROM THE AUSTRALIAN REGION. 
Measurements . — min. 
Total length . . . . . . . . 3 '50 
Head, with mandibles, long . . . . . . 2’ 00 
,, posterior margin to fontanelle, long . . 0’86 
„ wide .. .. .. .. 0-75-0 -85 
,, deep . . . . . . . . 0-62 
Mandibles, entire length . . . . . . 0‘91 
Antennae, long . . . . . . . . 1-25 
Pronotum, long .. .. .. .. 0*35 
,, wide .. .. 0-52 
Tibia hi, long .. .. .. .. 0-57 
Worker. 
Colour.- -Head somewhat paler than that of soldier ; remainder 
of insect cream huff. 
Head. — Moderately setaceous, very broad, almost parallel on the 
sides and markedly rounded behind. Clypeus small, convex, 
glabrous. Labruni markedly convex and broad, rounded in front. 
Antennae 13-jointed ; the 2nd joint quadrate ; the 3rd always 
shortest and narrowest ; the remaining joints, excepting the last, 
moniliform. 
Thorax.- -VTumoimn very much narrower than head, the anterior 
margin sinuate, but not deeply emarginate as in the soldier ; antero- 
lateral angles somewhat less rounded than in soldier ; sides and 
posterior margin as in the latter. Posterior margin of meso- and 
metanotum as in soldier. 
Legs . — Short and stout ; moderately setaceous. 
Abdomen . — C'lothed similarly to legs ; cerci short and stout ; 
styli long and slender. 
M easurements . — _ 
Total length . . . . . . . . . . 3*50 
Head, from base to apex of labruni, long . . . . Q-97 
,, from base to clypeofrontal suture, long .. 0-62 
>= wide .. .. .. .. ..0-74 
Pronotum, long . . . . , . . . . . 0-27 
wide . . . . . . . . 0-44 
Tibia iii, long . . . . . . _ _ . . 0 • 47 
Locality . — Northern Territory ; Darwin. 
Affinities.~Y\\m is the smallest described Australian species of 
Leucotermes, its nearest ally being L. venustus, from which it is 
easily distinguished by the shape of the labruni and fewer jointed 
antennae. 
Biology. The type colony, which was taken from an imported 
soft-wood box lying upon the ground (Gr.F.H., 1.8.14), comprised 
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