NEW SPECIES OF AUSTRALIAN ANTS 19 



Head slightly longer than broad, sides convex, occipital border almost straight. 

 Head as in P. hcmiflavus except that the first segment of the funiculus is larger 

 than only the two following segments together. Thorax slightly more than 

 twice as long as broad. Pronotum very slightly longer than broad, sides strongly 

 convex. Mesonotum slightly longer than broad, broader in front than behind. 

 Epinotum as broad as long, very much narrower than the mesonotum. In profile 

 similar to P. hemiflavus. The epinotal declivity slightly convex, with a very 

 obtuse angle at the centre so that the upper half of this face slopes outward 

 towards the node, the lower half is almost straight and vertical. The whole 

 declivity is twice as long as the dorsum. Node seen from above is very narrow 

 and transverse, almost straight. In profile it is sharp pointed with the faces 

 straight, and only half as high as the epinotum. Legs slender. 



Collected by F. E. Wilson. Bogong Plains, Vic. 



Type in the National Museum of Vic. 



12. Prolasius paUidus, Clark. 



Clark, Mem. Nat. Mus. Vict. 8., p. 67, pi. 4, figs. 26-27, 1934. g 9 

 Worker : 



Length: 2 -2-2 -8mm. 



Pale ochraceous yellow; gaster slightly darker. 



Clypeus produced to a blunt point in front, not carinated. Scapes extend 

 beyond the occipital border by one quarter of their length. First segment of the 

 funiculus slightly longer than the two following together, second and fourth as 

 long as broad, third shortest, one third broader than long, fifth to ninth longer 

 than broad, tenth as long as broad, apical longer than the two preceding together. 

 Dorsum of epinotum half as long as the declivity. 



Beech Forest, Vie. 



13. Prolasius abrupius, Clark. 



Clark, Mem. Nat. Mus. Vict., 8 p. 66, pi. 4, fig. 25, 1934. S 

 Worker : 

 Length: 3 5mm. 



Ferruginous; mandibles, antennae and legs lighter; gaster brownish. 

 Scapes extend beyond the occipital border by barely half their length. First 

 segment of the funiculus as long as the two following together, second and third 

 as long as broad, fourth to tenth longer than broad, apical as long as the two 

 preceding together. 



Gellibrand, Vic. 



Note. — The original description gives "first segment of the funiculus twice as long 

 as the two following together." After checking the type and several paratypes it was 

 found that this is incorrect and it was necessary to make the above correction. 



14. Prolasius quadrata, new species. (Plate I, figs. 10-11). 

 Worker : 



Length: 3 54mm. 



Head and thorax dull yellow; gaster dark brown, lighter than P. robustus. 



Microscopically punctate throughout, but smoother than P. robustus. 



Hair yellow, long, erect, sparse, confined to clypeus and gaster. Pubescence 

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



Head noticeably rectangular, slightly longer than broad, sides and occipital 

 border almost straight, corners broadly rounded. Mandibles triangular furnished 

 with five sharp teeth. Clypeus broadly rounded in front, carinated. Frontal 



