32 
AUSTRALIAN SPECIES OF RHYTIDOPONERA MAYR 
triangular, shallow. Frontal carinae as long as broad in front, parallel. Eyes 
convex, occupying one-third of sides, placed behind middle. Ocelli large and 
convex. Scapes extend to occipital border. First segment one-third the 
length of second. Thorax twice as long as broad. Pronotum projecting 
strongly in front, sloping downward, strongly convex in all directions. 
Mesonotum as long as broad, broadly cone-shaped. Mayrian furrow not 
defined. Parapasidal furrow feebly indicated. Scutcllum one-fourth broader 
than long, anterior edge straight, sides and posterior border strongly convex, 
dorsum convex both ways, with a very feeble longitudinal groove in middle. 
Constriction between mesonotum and scutellum broad and deep, convex in 
front. Metanotum three times broader than long, strongly convex trans- 
versely. Epinotum broadly convex transversely. In profile pro-mesonotal 
suture sharply impressed. Pronotum sloping downward and forward at an 
obtuse angle, feebly convex. Mesonotum strongly convex in front, flat on 
posterior third. Scutellum low and convex, almost three times longer than 
high. Metanotum as high as long, convex above. Epinotum feebly convex, 
almost straight, rounded into declivity, the latter straight, one-fourth longer 
than dorsum. Node convex all ways, broadest behind. In profile high and 
strongly convex behind, slojfing gradually downward in front, the ventral 
spine slender and sharp, three times longer than broad at base. Postpetiole 
one-eighth broader than long, sides strongly convex. First segment of gaster 
almost twice as broad as long, broadest behind, the constriction between the 
two segments broad and deep. Genitalia retracted. Legs long and robust. 
Habitat. — Queensland : Rockhampton (Mus. Godeffroy) ; Yeppon (H. J. 
Carter) ; Magnetic Island (G. F. Hill) ; Mareeba (H. E. Hill). 
Eetlescl’ibcd from examples in the National Mnsenm collec- 
tion, received from the INIns. Godetfroy in 1888. 
The specimens from Mareeha are nincli larger and more 
robust than those from the other localities, but otherwise are 
identical. 
lihytidoponcra kiticeps Forel. 
(PI. Ill, figs. 11-12.) 
Rhytidoponera laticeps Forel, Arkiv. f. Zook, 9, 16, p. 12, text-fig. 3, 
1915, 5 5 . 
Worker. — Length, 11-12 mm. 
Chocolate-brown. Mandibles, funiculi and legs lighter brown. 
Mandibles, scapes, tibiae and apical fourth of femora finely striate longi- 
tudinally, basal three-fourths of femora transversely striate, coxae rugose. 
Clypeus, strongly but not coarsely, striate-rugose. Head strongly and coarsely 
punctate-rugose, the punctures large and deep, shining at bottom. Pronotum 
very coarsely and irregidarly punctate-rugose, behind, transversely rugose in 
front. Mesonotum coarsely punctate-rugose. Epinotum very coarsely punc- 
tate-rugose, the rugae transverse behind. Node transversely rugose. Anterior 
face transversely striate. Postpetiole finely but strongly striate transversely 
arched, with numerous small, shallow scattered punctures. First segment 
of gaster more finely striate, transversely arched and similarly punctate. 
Hairs yellow, long and erect on front of clypeus and apex of gaster, very 
