433 



NEW AND RARE AUSTRALIAN TERMITES, WITH NOTES ON THEIR 



BIOLOGY. 



By Gerald F. Hill, F.E.S. 



(Plate xxxvi., ami fifty-two Test-figures.) 



During recent years and since tbe publication (if Froggatt's monograph 

 (1895-t)) about (iS species have been added to tbe list of Australian Termites, 

 bringing the total, inclusive of 5 species described in this papei', up to ap- 

 proximately 115. Of tins number no fewer than 49 have been described during 

 the past two years. 



In the following descriptions Ridgway's Colour Standards and Nomenclature 

 has been used as far as possible ; measurements of wings are from the suture 

 to the apex and across the widest part; all examinations were made in day- 

 light and all figures drawn with the aid of a camera lucid a: measurements are 

 in millimeters. 



Tbe types of new species are in the writer's collection: the drawings for the 

 Text-figures were made by the author. 



Subfamily STOLOTERMITINAE, 



Genus Stolotermes Hagen. 



Stolotermes victoriensis, n.sp. (Figs. 1-11.) 



1 in a g o. (Figs. 1-7). 



Colour: Head, thorax, abdomen, antennae and palj)i dark brown, proximal 

 joints of antennae lighter than others; clypeus and labrum ochraceous tawny; 

 legs buckthorn brown suffused with dark brown, mandibles fernigineous. Wings 

 very dark brown, blackish when folded. 



HeaU (Fig. 1) large, rounded behind and <>n tbe sides, widest across the 

 eyes, flat on the summit, without meilian suture, clothed scantily with moderately 

 large setae. Labrum large, rounded, not covering apical teeth of mandibles. 

 (Typeus short and wide, anterior margin membranous. Eyes small and very 

 prominent, a little higher than wide (.235 x .28'2), surrounded by pale-coloured 

 membrane. OeeUi invisible except in cleared preparations, then very indistinct. 

 A small deep depression on either side of tbe median line in line with tbe 

 insertion of the antennae and immediately posterior to the postero-lateral angle 

 of tbe clypeus. Mandibles (Fig. 2) with four angular teeth on tbe left and 

 two angular and one broad tooth on tbe right. Antennae (Fig. 7) 16-jointed, 



