16 NEW SPECIES OF AUSTRALIAN ANTS 



feebly concave, and twice as long as the dorsum. Node convex transversely. In 

 profile thorn-like, bluntly pointed, with anterior face straight and posterior 

 face faintly convex. Legs slender. 



Female : 



Length: 5' 5mm. 



Colour more uniformly light ferruginous. Pilosity as in worker. Microscopi- 

 cally punctate throughout. Occipital border and sides of head almost straight, 

 the angles broadly rounded. Eyes and ocelli large and convex. Antennae and 

 mandibles as in worker. Thorax one and a half times as long as broad. 

 Pronotum very short. Mesonotum slightly broader than long, with sides and 

 front strongly convex. Parapsidal furrows fully half as long as the dorsum, 

 and clearly impressed. Scutellum one quarter broader than long. Epinotum 

 four times as broad as long. 



Collected by P. J. Darlington. Barrington Tops, N.S.W. 



Type in the National Museum of Vic. 



7. Prolasms brunca, new species. (Plate I, figs. 22-23). 

 Worker : 



Length: 3 4mm. 



Dark ferruginous with antenna? and legs lighter. Some examples are dark 

 reddish ferruginous with antennae and legs yellowish. 



Microscopically punctate throughout. 



Hair yellow, long, confined to clypeus, mandibles and gaster. Pubescence 

 yellow, fine, adpressed,, abundant throughout but not hiding the sculpture. 

 Head about a quarter longer than broad, with sides feebly convex and occipital 

 border almost straight, corners broadly rounded. Mandibles triangular, 

 furnished with six fairly even teeth. Clypeus broadly pointed in front, not 

 carinated. Frontal area transversely triangular. Frontal carina? as long as 

 the distance separating them, parallel. Scapes extend beyond the occipital 

 border by almost a third of their length. First segment of funiculus almost as 

 long as the two following together, fourth as broad as long, rest almost twice 

 as long as broad, apical as long as the two preceding together. Eyes large, 

 convex, placed at the middle of the sides. Ocelli small. 



Thorax two and a half times as long as broad. Pronotum as long as broad, 

 sides strongly convex. Mesonotum slightly longer than broad, with the sides 

 almost straight. Epinotum one and a half times as long as broad, with the 

 posterior margin wider than the anterior margin, and sides almost straight. In 

 profile pronotum and mesonotum form an even convexity. Epinotum almost 

 straight, raised slightly behind. Declivity straight, fully twice as long as the 

 dorsum. Node much lower than the epinotum, transversely convex. In profile 

 sharp pointed, with anterior face convex, posterior face almost straight. Legs 

 slender. 



Collected by J. Clark. Millgrove, Vic. 



Type in the National Museum of Vic. 



8. Prolasins mjobergi, Forel. 



Prenolepis mjorbergi, Forel. Arkiv. f. Zool, 9, 16, p. 93, pi. 2, fig 6 1915 $ 

 Prenolepis mjooergiellus, Santschi, Bull. Soc. Ent, Fr. p. 242 1916. 

 Melophorus mjobergiellus, Emery, Genera Insect, fasc. 183, p. 1*2, 1925 

 Translated from Forel 's description in Arkiv. f. Zool. 



