new Ants from Australia. 447 
Monomorium occiDANEvs, sp. n. (Fig. 10.) 
3. Length 2:0 mm. : 
Pale yellow, thorax and legs palest, gaster castaneous. 
Teeth of mandibles brown. Body sparsely provided with 
yellow hairs. 
Head almost exactly as broad as long, broadest in front, 
slightly narrowing behind eyes, sides almost parallel to that 
point, occiput widely concave. Eyes of moderate size, 
placed just in front of middle of sides. Mandibles with 
four teeth. Clypeus overhanging base of mandibles, the 
Fig. 10. 
Oa 
— 
Monomorium occidaneus, sp. n. 
carine not very distinct, the projecting portion feebly 
incised in centre of anterior border. Scapes fail to reach 
the occiput by twice their greatest width. Apical joint of 
club nearly twice as long as the other two together, the 
first joint of club is longer than broad, two-thirds as long 
as the second ; joints 2-6 of funiculus broader than long, 
the seventh as broad as long. 
Thorax slightly constricted in centre, very similar to that 
of datinode, Mayr, but the mesonotum forms an acute 
angle in front, the promesonotal suture being feeble but 
distinct. Mesoepinotal suture as in Jlatinode. Base of 
epinotum once and a half as long as declivity, the angle 
dividing them greater than a right angle, slightly concave, 
with prominent but blunt angles at the sides. First node in 
