74 
AUSTRALIAN SPECIES OF RHYTIDOPONERA MAYR 
behind, rounded into declivity, the latter short and convex. Node twice as 
broad as long, oval, strongly convex in all directions. In profile higher than 
long, slightly longer at top than at base of posterior face, anterior face short 
and inclined inwards on top, then descending forward at an obtuse angle, 
convex, posterior face convex, rounded into the convex dorsum ; the ventral 
spine very short and sharp. Postpetiole one-third broader than long, strongly 
convex in front. First segment of gaster one-fifth broader than long, strongly 
convex behind. The constriction between the two segments sharp and deep 
but not wide. Legs long, rather slender. 
“Male. — Length, 8'5-8’9 mm. (after Forel). 
“Kopf rhombenformig ; seine Seiten hinter und vor den in der Mitte 
gelegenen Augen verschmalert, konvergierend und fast gerade. Der Kopf 
ist etwas liinger als breit. Fiihlerschaft etwa 4^ Mai liinger als breit; erstes 
Geisselglied langer als breit. Scutellum nicht buckleformig hervorragend wie 
bei convcxum. Stielchen hinten breiter, gut zweimal langer als hinten breit ; 
der Knoten ist vom Vorderstiel kaum zu unterscheiden. Postpetiolus vorn 
niedrig und schmal, binten verbreitert. Kopf und Thorax grob genetzt, oder 
langsgerunzelt ; der Postpetiolus und das folgende Segment sind fein langs- 
gerunzelt und genetzt, glanzend. P'iihler und Beine abstehend behaart, Fliigel 
braunlich gefarbt.” 
Habitat. — North Queensland: Malanda (E. Mjoberg). 
Redescribed from a co-type received from Prof. Sjostedt. 
BJiytidoponera 7'eticulata Forel. 
(PI. VI, fig. 52.) 
Ectatomma (Rhytidoponera) reticidatuin Forel, Ann. Soc. Ent. Belg., 
xxxviii, p. 458, 1893, 5 . 
Rhytidoponera (Chalcoponera) reticulata Emery, Gen. Ins., fasc. 118, 
p. 39, 1911,5 ; Deutsch. Ent. Zeitschr., p. 78, 1912,5. 
Rhytidoponera reticulatum Crawley, Ann. Mag. Nat. Hist., 9, vii, p. 88, 
1921, 5. 
Worker. — Length, 8 mm. 
Head, antennae and thorax blackish-brown. Mandibles, legs, node and 
gaster reddish-brown. 
Mandibles, scapes and tibiae finely and densely striate longitudinally. 
Clypeus longitudinally rugose. Plead and tborax punctate-rugose. Top of 
node circularly striate-reticulate, anterior face transversely striate. Postpetiole 
longitudinally arched striate, first segment of gaster veiy finely and densely 
striate longitudinally. 
Hair yellow, moderately abundant throughout, short and erect, shorter 
and suberect on funiculi and legs. 
Head one-fifth longer than broad, broader in front than behind, sides 
feebly convex, occipital border concave, angles rounded. Mandibles denticu- 
late. Clypeus convex above and in front. Frontal carinae as long as broad 
in front. Frontal area large. Scapes extend beyond occipital border by 
barely one-third their length. First and third segments of funiculus equal 
length, second very slightly longer, almost same length, apical barely as long 
as the two preceding. Eyes rather protruding, placed behind middle of 
sides. Thorax twice as long as broad. Pronotum one-fourth broader than 
