'l’I<:iliMlTKS THE AITSTKAI.IAN KK(JION. 
TliirtV'thrce newt-series examined (colleeted by (I.K.H.), of wliicli 
number sixteen were from tlieir own termitaria and seventeen from 
tlie termitaria of species in otlier yenera. 
HioiofUj. Small communities are cotnmotdy found in raml)liny 
t)assayes in tlie walls of occu|)ied or abandoned termitaria of otlier 
species, in wliicli tliey b.nd sidlicient accommodation until the jiro- 
duction of alate forms commences, when they jiroceed to build tor 
tliemselves. The result may lu^ a, rounded excrescence on the side of 
the original termitarium or a low dome-shajied mound at the foot 
of it (see bhy. 224) ; iu either case it is a cons|)icuous object on 
account of its dark yrey or blackish colour. Isolated mounds are 
common and are invai'iably built on a stump or upon the yround 
overlyiny a stum[), root or loy. 4 he termitarium illustrated in 
Kiy. 222 is also a commou type and indicates the extent of daniaye 
that may be done to fencc'-posts, house-blocks and other wooden 
objects. 4'he following field notes refer to this species : (1) 24 miles 
soutli-east from Darwin, 14.1.12. Soldiers and woi'kers from an 
abandoned mound of ExtermeH /lahinrsfovi Hill, in 'wliich was found 
also a colony of each of the following species : llamitermes {Ih'epano- 
fermes) se])fen/rioiial is Mill, M irotennes iiiclrilleiisis (Mill), /laniifermes 
sj). and Eiilernies sp. (2) Same locality and date. (,)ueen, soldiers 
and workers from nest resembling .1/. nielrilletfsis (l^dy. 222) built 
over and around hardwood pile supporting sheetiny at foot of railway 
embankment ; pile almost completely destroyed ; (pieen in small 
flattened cell about 20 mm. in diameter by 5 mm. liiyli. (2) 
Jiatchelor. 17.2.12. ()ueeu. soldiers and workers from a mound 
similar to that illustrated by Fiy. 222, built around trunk of dead 
Kucah/pfifs ti'ei' iu forest ; ipieeu in small cell at yround level in 
centre of mound. (4) Same locality and date. Soldiers and workers 
from bia(4<ish nest on side of dead tree ; this and many others in 
same locality resembled the nest of 4/. c/ieeli illustrated by Mjbbery 
(1920, Plate 5). (5) 24 miles south-east from Darwin, 27.7.12. 
Soldiers and woi'kers from a small blackish, rounded mass built on 
the side of a termitarium of Eiifennes jjalijierstoni Hill 20 inches 
from the yround. (b) Koolpiuyah, 21.1 1.12. Soldiers, workers and 
fii'st-form nymphs from a mound similar to that illustrated by 
Fig. 222. 44ie ];ost liad been in tke ground four years. (7) Darwin, 
16.12.12. Alate imagos, soldiers, workers and tirst-form nyni])hs 
from black, earthy mass enveloping the hardwood timbering at 
entrance to miner's prospecting shaft. Uhivofermes sp. Avere found 
iu the mass and in the adjacent timber. (8) Darwin, 12.11.14. 
Alate imamis, soldiers and workers from a lari>e termitarium built 
at the fiase of a MeUilomt tree. 'File middle of the mass contained 
a large colony of Coptotennes acinavifonhis (Frogg.) completely 
envelo])ed in a dense coveiing of black earthy material 12 inches or 
more in tluckness, wliich contained three distinct coloi\ies of T//ro- 
fernies, eacli with a fully developed first-form (]ueen, alate imagos, 
I 108 I 
