80 
AUSTRALIAN FORMICIDAE 
Neophyracaces piliventris sp. nov. 
Plate XIII, Pig. 9. 
Worker. Length 8-8-5 mm. 
Yellowish-red, margins of thorax and node black. 
Shining. Mandibles with some large shallow punctures. Head, thorax, 
node and gaster very finely and densely reticulate, with large shallow piligerous 
punctures, more abundant on gaster. 
Hair yellow, long and erect, particularly abundant on gaster, shorter and 
suberect on antennae and legs. Pubescence whitish, apparent only on antennae 
and legs. 
Head as long as broad across the eyes, occipital border evenly arched from 
eye to eye, sides in front of eyes straight. Mandibles large, edentate. Frontal 
carinae erect, high, parallel, truncate behind, twice as long as broad. Carinae 
of cheeks prominent, front angles sharp and raised. Scapes extend beyond 
hind margin of eyes by half their thickness ; first to tenth segments of funiculus 
slightly broader than long, apical pointed, twice as long as broad and as long 
as the two preceding combined. Eyes large and convex, their centre slightly 
behind the middle of the sides. Ocelli large and prominent. Thorax one and 
three-quarters times longer than broad, slightly broader at epinotum than 
pronotum, sutures distinct, strongly constricted at mesonotal region. Pronotum 
twice as broad as long, front and sides strongly convex, sides margined. The 
margins continued and almost meeting in front. Mesonotum one-fourth 
broader than long, convex in front and behind, concave on sides, not margined, 
onei-fifth narrower than pronotum. Epinotum twice as broad as long, sides 
strongly convex and margined, posterior border straight or feebly convex, 
margined, angles sharp; in profile evenly convex longitudinally, sutures 
indicated but feebly impressed, declivity concave, sides margined. Node 
one-fifth broader than long, broadest behind, sides convex to anterior fourth, 
sharply margined, anterior edges convex, not margined, angles sharp, posterior 
angles produced as long sharp translucent spines twice as long as broad at 
base, curved slightly inward; in profile anterior face short and straight, 
broadly rounded into dorsum, margined on sides, dorsum convex, highest in 
front, posterior angles produced backwards as broad sharp spines as long as 
broad at base, declivity short, rounded into dorsum. Postpetiole almost 
one-third broader than long, broadest behind, sides strongly convex, anterior 
edge straight, margined, the angles sharp, constriction between postpetiole and 
gaster deep and wide. First segment of gaster one-sixth broader than long 
sides convex. Legs long and slender. 
Male and female unknown. 
Habitat. — Queensland: Brisbane (H. Hacker). 
Subfamily Ponerinae Lepeletier. 
Hist. Nat. Ins. Hymn., i, p. 185, 1836. 
Genus RHYTIDOPONERA Mayr. 
Verb. Zool. hot. Ges., Wien, xii, p. 731, 1862. 
Since the revision of this genus, these Memoirs, viii, 1936 
the following species have been received: — * 
