AUSTRALIAN HONEY-ANTS. 



273 



cave; head broadest just behind the eyes and more rounded behind 

 than in erythrocephalus and fiigriventris. Eyes large, as long as half 

 their distance from the anterior border of the cheeks, situated a little 

 more than half way from this border to the posterior border of the 

 head. Anterior border of clypeus impressed in the middle. Man- 

 dibles rather slender, with about 20 crowded denticles on the apical 

 border. Antennal scapes surpassing the head by less than § their 

 length. Thorax and petiole shaped much as in iiigriveiitris, but the 

 lower surface of the latter much more convex and the impression on 

 the summit of the node very faint. Tibice distinctly compressed. 



Figure 7. a. Leptomyrmex wiburdi sp. nov. Worker, nearly replete; b. 

 head of same from aljove. 



Subopaque, very finely and densely shagreened ; mandibles slightly 

 shining, coarsely punctate along the apical border. 



Hairs very few, confined to mandibles, clypeus and venter. Pubes- 

 cence extremely fine, giving the body a pruinose appearance, most 

 distinct on the thorax and gaster. 



Black, with bluish reflections; head, antennae, trochanters, knees, 

 tarsi and articulations of thorax yellowish testaceous; femora and 

 tibiae blackish brown, the latter often paler than the former. Palpi 

 and a faint cloud on the vertex of the head fuscous. 



Described from numerous specimens taken by Mr. J. C. Wiburd at 



