ANTS FROM THE OTWAY RANGES. 
Iridomyrmex foetans Clark. 
Vic. Naturl. xlvi, p. 122, pi. 1, fig. 1, 1929, 5 . 
Many examples were found on tree-trunks at Beech Forest 
and Gellibrand. This species emits a powerful and disagreeable 
odour. 
Subfamily Formicinae Lepeletier 1836. 
Genus DIODONTOLEPIS Wheeler 1920. 
Diodontolepis spinisquamis (Andre). 
Rev. d’Ent. Caen, p. 254, 1896, § 2 <?. ( Melophorus ). 
Diodontolepis spinisquamis Wheeler, Bull. Amer. Mus. Nat. Hist., xlv, 
p. 694, 1922. 
Melophorus spinisquamis Emery, Gen. Insect. Fasc. 183, p. 12, 1925. 
Iwo nests were found under logs near Gellibrand, and one 
at Beech Forest. Emery is in error in sinking Wheeler’s generic 
name for this species. In addition to the anatomical details 
the habits, too, are different from those of Melophorus. Some 
examples have a distinct tubercle on posterior margin of 
epinotum, and distinct, but small, spines on node. 
Genus NOTONCUS Emery 1895. 
Notorious foreli Andre. 
Rev. d’Ent. Caen, p. 256, 1896, 
One small nest under log at Gellibrand. 
Genus PSEUDONOTONCUS, gen. nov. 
Worker. — Monomorphic, varying slightly in size. Mandibles triangular, 
dentate. Maxillary palpi with six segments, labial palpi with four segments. 
Clypeus broad, carinate, produced in front, slightly overhanging mandibles. 
Frontal area small, transverse. Frontal carinae feeble, diverging behind. 
Antennae twelve segmented. Scapes extending beyond occipital border. 
Eyes circular, placed at posterior third of head. Ocelli distinct. Pronotum 
broad, strongly convex in all directions. Pro-mesonotal suture deep and wide. 
Spiracles placed on dorsum at anterior of depression. Posterior border of 
epinotum furnished with two long sharp spines ; flattened laterally. Two 
similar but shorter spines near middle of epinotal declivity at sides. Node 
thick, furnished with two spines similar to those on epinotum, parallel, directed 
backward ; a short blunt tooth below in front directed forward. Gaster oval. 
Legs robust, all femora and tibiae thickened at middle. Tibia with one 
pectinate and one bristle-like spur ; middle and posterior tibiae each with one 
strong bristle-like spur. Claws simple. 
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