26 
Psyche 
[ March 
of the normal media and maxima in being stouter., broader 
and with more broadly rounded apical border than in the 
minima. In (h) this border is even very feebly emarginate 
in the middle as in some maximse. The coloration and pilos- 
ity of all the mermithergates is that of the normal maxima, 
media and minima, except (d) and (h), which have the 
posterior corners of the head red. 
Camponotus (Myrmophyma) claripes Mayr. (Fig. 2) 
C. claripes is one of the most variable and widely dis- 
tributed of the Australian Camponoti. It is an inoffensive 
ant which lives in the soil under stones and logs in rather 
small colonies. According to my observations, the worker 
media is either extremely rare or nonexistent, as in many 
species of the subgenus Colobopsis, so that the worker caste 
is sharply divided into minimse and maximse. Since the 
typical claripes was described by Mayr in 1876 from Peak 
Downs, Queensland, seven subspecies and varieties have 
been added by Forel, Viehmeyer and Crawley, but the ma- 
terial in my collection shows that these by no means exhaust 
the existing variants. Although the species needs revision, 
I here describe only one of the hitherto unrecorded forms, 
because it yielded a mermithized specimen. 
Camponotus ( Myrmophyma ) claripes Mayr 
subsp. piperatus subsp. nov. 
Worker maxima. Length 8-10 mm. 
Head shaped as in the typical claripes, but with slightly 
more convex sides ; thorax shorter and higher, especially at 
the epinotum, which has a much steeper concave declivity, 
distinctly longer than thej convex base. Punctures on the 
subopaque clypeus and cheeks smaller, more superficial and 
not elongated. Pilosity as in the type, but somewhat less 
abundant on the cheeks. Color brownish ivory yellow, legs 
paler ; tip of gaster, a band across each of its more anterior 
segments, apex of the petiolar node, epinotum, sides of the 
mesonotum and more or less of the dorsal surface of the 
head brown or dark brown, the pronotum and paler portions 
