TERMITES FROM THE AUSTRALIAN REGION. 
to this species. There are no imagos in (2) for comparison with 
those in (1) and (3). The soldiers in (1) and (2) agree with each 
other and witli the description of M. birou excepting that the 3rd 
joint of the antennae in nearly all cases is markedly shorter, and 
nearly always markedly narrower than the 4th and' 5th. (In the 
description of M. hiroi this joint is said to be generally a little 
longer and broader than the 2nd, or subequal to it . . ^ . . . 
In a few cases the antennae are apparently of fourteen segments, 
the 3rd being more or less jierfectly divided into two segments! 
of which the basal one is small, and shorter than the 2nd.'’ '’of the 
writer’s specimens only a few individuals in a large colony from 
Kaile can be so described). The soldier found in (3) agrees in all 
details with the typical form. ’I’lie workers of all three series have 
the 3rd segment shorter and narrower than the 2nd, and thus agree 
with some of the specimens described by Desneux ; in other respects 
they are typical. (4) ’Fwo colonies of soldiers and workers from 
Darn, Pa]ma (W. W. Froggatt). 
Measurements of imagos from colon v (1) — 
mm. 
Length with wings . . 
5-50-6-50 
Head, from base to apex of labrum, long 
1-14-1-19 
,, from base to clypeofrontal suture, long 
0-91 
j,- wide 
0-93-0-96 
Pronotum, long 
0-39-0-47 
„ wide 
0-74-0-85 
Wings, forewings, long 
6-75-7-75 
wide 
1-99-2-00 
,, hindwings, long 
6-25-7-50 
» wide 
1-93-2-16 
Eyes, diameter, generally 0-255 x 0-255, rarelv 
0-289 x 0-289.^ 
Measurements of soldiers from hlthel River and Kaile, 
Papua.- - 
3'otal length 
H ead, with mandibles, long 
„ from base to clypeofrontal suture, long 
:: wide 
Pronotum, long 
„ wide 
Tibia iii, long 
mm. 
5 *25-6 *50 
2 *62-2 -90 
1-70 
1 -08^1 -19 
0-30-0 -39 
0-68-0-74 
0-85 
Measurements of workers from Ethel River and Kaile, Papua. 
Mim- mm. 
Large form. Small form. 
total length .. .. 4-85-5-15 4-00^-27 
Head, long .. .. 1-32 
» wide .. .. 1-08 0-90 
1 : 32 I 
