JSorth and South-west Australia (tr. 2.'53 



AlamlibK's lar-ije, tiian^ular, tlic terminal bonier r<';;(il;ii ly 

 dentate; linely stiiate. Anterior border of clypeus n-j;idarly 

 curved ; frontal area indistinct. Head longer than broad, 

 eyes lar^'e, placed in the centie ot the sitles ot head, of whiih 

 they occupy three-quarters; ocelli large and |)roniineiit. 

 Frontal carinas short, diverging behind ; scape of 115-juinted 

 antennte slightly shorter than tlie second joint of funiculus, 

 first joint ot latter as broad as long ; from the second j<jint 

 of funiculus, which is the longest, the joints gradually 

 diminish in length until the terminal, which is slightly longer 

 than the preceding one. Mesonotum high and arched, 

 Mayiian furrows almost invisiide ; scutellum {)rominent, 

 lather small, and wider in front ; epinotuni longer than broad, 

 with convex sides, only slightly narrower behin 1 than in 

 front. Upper wings with two cul)ital closed and two di.-- 

 coidal cells. Pedicel long and narrow, somewhat cylindrical, 

 only slightly higher behind ; underneath in front is a long, 

 very thin, vertical spine. Gaster a little more than twice as 

 long as broad, first segu ent (<>r post-petiole) as long as the 

 second, the constriction between them moderately pronounced. 

 Tibife of the two posterior pnirs of legs with two s|»urs, the 

 inner long and pectinate, very shortly so in the middle pair 

 and longer in the posterior |)air. Claws bifid. 



Head and thorax coarsely rugose ; on the declivous sur- 

 face of ephiotuin the rugosities radiate from a central ridge ; 

 node of pedicel transversely striate. First segment of gaster 

 finely striate longitudinally, the lateral strite curving inwards 

 and encircling the base ; second segment finely striate trans- 

 versely, the striiB having a tendency to curve upwards ; 

 the remaining segments transversely striate. In one 

 specimen the node and gaster are shining, the striae on 

 the former being more teeble, those on the first se^finent 

 of gaster are only apparent at ihe sides and base, and on the 

 second segment tiiey are diagonal, the central ones almost 

 longitudinal. 



Pilosity sparse and scatlere<l, yello.v ; scapes and tibiiii 

 with erect hairs. 



(Chestnut, head anil niesonotum darker. 



Darwin, N.T., 1. vi. 13 {Ilill). Z S S- 



As no 5 52 were captured with these S 6 A have thought 

 it best to describe them provisionally as a new species, and 

 have placed them in the subgenus lihi/tUioponera (s. str.), 

 although in the length of the scape and second joint of funi- 

 culus they do not entirely accord with Eujcry's characters 

 given in the * Genera Insectorum.' The number of mules 

 known is, however, small. 



