274 WHEELER, 



the Jenolan Caves in the Blue Mts. of New South Wales. The series 

 comprises a number of repletes and larvse showing that Mr. Wiburd 

 took the colony from the nest. A single worker taken by myself in 

 the BuUi Pass, New South Wales, agrees very closely with the types. 

 It is difficult to decide whether wiburdi is a distinct species or merely 

 an extreme variety or subspecies of yiigriveniris. For the present I 

 prefer to regard it as a species characterized by small size, large eyes 

 and the shape of the head, especially the concavity of the cheeks. 



9. Leptomyrmex wiburdi var, pictus var. nov. 



Worker. Length 7-8 mm. 



Differing from the typical form in color, the thorax being yellowish 

 red or testaceous, like the head, with a large black spot on the pro- 

 notum, a small one on the mesonotum and in some specimens also a 

 still smaller or more indistinct one on the epinotum. The legs are 

 red, with the apical | of the femora black and all except the base and 

 tip of the tibite dark brown or blackish. In some specimens the lilack 

 spots on the dorsum of the thorax are more extensi\'e and almost con- 

 fluent and the outer surfaces of the coxae are blackish or infuscated. 

 Such specimens constitute transitions to the typical form. 



Described from five specimens taken by myself in the Bulli Pass, 

 New South Wales and a single one taken at Katoomba in the same 

 state. The nest of this variety was not discovered and only speci- 

 mens running about singly on the foot-paths were seen. 



10. Leptomyrmex niger Emery. 



(Fig. 8.) 



Emery, Termesz. Fiizet. 23, 1900, p. 333, PI. 8, Fig. 43 S ; Stitz, 

 Stitzb. Ges. Naturf. Freunde Berlin, 1911, p. 3G7 S ; Viehmeyer, 

 Abhandl. Ber. k. zool. u. anthr. ethnogr. Mus. Dresden 14, 1912, p. 22, 

 y ; Emery, Genera Insect. Fasc. 137, 1912, p. 17. 



Worker. Length 8 mm. 



Head elongate, more than twice as long as broad, with slightly 

 convex cheeks; posterior to the eyes, which are situated Ijehind the 

 middle of the sides, the sides are arcuately narrowed. Antennal scapes 

 very slender, compressed. Petiole with a low rounded node, the an- 



