NEW AUSTRALIAN ANTS. 
funiculus longer than broad, eighth and ninth as broad as long, apical as long 
as the two preceding together. Eyes convex, projecting slightly from sides, 
placed behind middle. Thorax one and three-fourths times longer than broad, 
sutures not impressed. Pronotum two and two-thirds times broader than 
long, strongly convex and margined in front, angles produced as long broad 
spines directed outward laterally and very slightly forward, longer than their 
width at base, sides convex, not margined. Mesonotum slightly longer than 
broad, bluntly pointed in front, convex behind, a short, broad, sharp tubercle 
at centre of anterior border, vertical, hardly noticed from above ; this tubercle 
is the termination of the three central carinae. A deep and wide constriction 
between epinotum and mesonotum but without margins on either. Epinotum 
twice as long as broad on top, spiracles prominent and tubercle-like almost on 
dorsum near middle of sides. Posterior border convex, furnished with two 
short sharp spines, slightly longer than the distance apart at their base, directed 
slightly outward and backward. In profile pronotum and mesonotum strongly 
convex, anterior border sharp and projecting. Anterior spines directed 
forward, tubercle on dorsum short and sharp. Meso-epinotal constriction 
deep and wide, concave. Epinotum feebly convex, one-fourth longer than 
declivity, latter oblique, feebly convex, spines on superior angles erect, directed 
very slightly backward. Node one and one-half times longer than broad, 
sides almost parallel, produced to a blunt point above ; in profile longer than 
high, convex from the anterior fourth, a short sharp spine near middle, ventral 
surface concave, a long blunt parallel tooth in front directed forward. Post- 
petiole broader than long, oval ; in profile higher behind than in front. Gaster 
almost one-third longer than broad, first segment covering three-fourths of 
the area. Legs long and robust, femora greatly thickened. 
Habitat . — North Queensland : Claudie River (J. A. Kershaw). 
The large size, peculiar colour and sculpture readily distin- 
guish this from all previously described forms. 
Genus DACRYON Forel 1895. 
Dacryon ferruginea, sp. nov. 
(PL III, fig. 2.) 
Worker. — Length, 4-5 mm. 
Ferruginous ; legs and gaster a little more yellowish. 
Mandibles shining, coarsely striate, with large scattered punctures. Head, 
thorax and nodes coarsely striate longitudinally, very finely and densely 
punctate between striae ; on occipital border the head is more rugose. 
Antennae and legs much more finely punctate. Some very fine longitudinal 
striae on anterior fourth of gaster. 
Hair yellow, erect, rather thick, moderately abundant throughout, shorter 
on antennae, none on legs. Pubescence very fine and short, conspicuous only 
on antennae and legs. 
Head slightly longer than broad, sides feebly convex, occipital border 
straight or feebly concave, angles rounded. Mandibles furnished with four 
strong sharp teeth behind apex. Clypeus convex in front with a slight concave 
excision at centre. Frontal area triangular. Frontal carinae extending 
[ 37 ] 
