134 Mr. W. C. Crawley on Ants from 



somewhat convex; eniarginate beliind ; a faint ridge from 

 behind the frontal area to the occiput. The scapes of the 

 antenna? exactly reach the occiput; joints 3-10 of funiculus 

 as broad or broader than long. Suture pro-mesonotal deeply 

 rnarktd. The declivous face of epinotum with sharp angles 

 abi)ve, bordered. Posterior coxa3 with a lamellate tooth. 

 IS'ode of pedicel three-quarters as wide as long, slightly 

 narrower in front, truncate behind. Constriction between 

 first and second segments of gaster slight. The whole body 

 finely punctured and minutely reticulate. 



Pilosity nil, except the ring of hairs round the apical seg- 

 ments of gaster. The whole insect covered with a fine 

 pruinose pubescence. 



Black -brown ; mandibles, antennae, tibise, tarsi, articula- 

 tions of legs, and apex of gaster reddish yellow. 



Darwin, N. T., 1. iv. 13. 



No. 81. Diacamma ausfrale, F., var. levis, var. n. 



^ . — L. 11 mm. 



tSiriaiion on head, thorax, and pedicel much finer than in 

 aus'rule, that on the head concealed by the pubescence. 

 First two segments of gaster not striate, but the first very 

 feebly reticulate, the second still more feebly. More pubes- 

 cent than australe. 



Near Adelaide Plains, N.T., 1. vi. 13. 



III. Siibfam. Mtrmicinjs. 



No. 24. Trig^yiJiothrix strialidens, Eur., var. australiif, For. 



Somewhat smaller than tlie typical striati'dens from India. 

 Darwin, N.T., 1913. ^ . 



No. 23. Monomorium rothsteini, For. 

 N.T., 30. V. 13. ^ . 



No. 426. Monomorium rothsteini^ For. 

 Darwin, N.T., 17. iii. 14. ? ^ . 



No. 425. Moyiomorium (Mitara) donistlwrpei, sp, n. 



5 . — L. 1*7 mm. 



Mandibles tiidei;tate, smooth, and shining. Clypeus with- 

 out teeth, vyitli two carinse widely divergiig in front. Head 

 oval-rectangu'ar. Eyes large, slightly in adya .ce ot the 

 middle of sides. Antennae ll-jointed ; joint 2 of funiculus 



