ERIC MJÖBERG, ISOPTERA. 43 



headed soldiers and workers which I have described below 

 as a variety. Further iip nortli on the Cape York Peninsula, 

 the same species builds taller nests consisting of a central 

 body with many parallel lateral column-shaped lateral parts 

 as sliown in Plate 4, Fig. 2. It attains a height of more 

 than tbree meters. 



Localities: Derby, Broome, Noonkanbab, Oscar Range 

 (winged insects in February) in North- West Australia, and 

 Laura and Alice River in North-Queensland. 



16 b. Eutermes nigerrimus Mjöb. v. qiieeiislaiulicus n. v. 



Head of soldier smaller, not quite so broad and rounded 

 bebind, antennse darker coloured, joints not so long and 

 slender, 3rd joint always shorter than 4th, 5th to 9th joints 

 hardly more than twice as long as broad. 



Measurements: Length of body 4,7 mm, length of 

 head 1,79 mm, length of snout 0,7 mm, breadth of snout at 

 base 0,4 mm, breadth of head 1 mm, breadth of abdomen 

 1,0 5 mm. 



This is a more southern form, living in the open forest- 

 country at Cedar Creek and Evelyne in North Queensland. 

 Deserves perhaps to be taken as a distinct species. Lives in 

 reddish nests similar in form and shape to those of the 

 head species from the Kimberley district. 



17. Eutermes fumipeiiuis Walk. 

 (Plate 2, Fig. 6, Text Fig. 17 b.) 



This very widely distributed species bas been recorded 

 from the most different localities of the continent. It does 

 not seem, howewer, to live within the sub-tropical parts. — 

 The species is easily identified on the characteristic profile of 

 the soldier's head (Plate 2, fig. 6). It builds its nest, the so- 

 called »negrohead» either on the ground on stumps or logs 

 or up in the trees (as illustrated in Text Fig. 58 a, 62). Outside 

 of Sydne}^ one very often sees those arboreal nests. The 

 duct leading up from the ground to the nest is covered up 

 with dark, wooden, chewed material. In southern Queensland, 

 at Mapleton on Blackal Range, I have observed the arboreal 



