AitHtraliitn diul Tdsnm h nm C (ihiipfcni. 57 



I have not described the elytral immturLS of this and of all the 



loll()\vin<z- species of the <j;-enus. as tliey are so extremely faint and 



sparse as to be scarcely, if at all, visible. On the head and ])rothiirax 



they appear to be always absent or at least invisible under a Cudding- 



ton lens. 



Sri/ch/iaeniis hij'tiscicii/dfun, n.sp. 



Heddish-castaneous, elytra (suture excepted) somewhat paler ; ap- 

 jtendages still paler (almost or quite tlavous) ; metasternum almost 

 or quite black. Up'per surface ;ilabrous except for rather dense, dingy 

 hairs at sides of prothorax ; and a distinct fascicle on each side of 

 base of head. 



Hfdd transverse, rounded between antennae. Eyes small and 

 rather prominent. Antennae moderately long and rather thin ; club 

 conspicuously four-jointed. I'nttliord i about as lon<; as wide ; each 

 side of base with a distinct fovea, the two connected by a transverse 

 inipression. Elytra wide and depressed ; base distinctly wider than 

 base of prothorax ; sides rounded and increasinu in width to about 

 the middle, thence decreasing in width to apex. LfW moderately 

 long; hind coxae not close together. Length 1^ nnn. 



Hah. — Victoria (Macleay and British Museums) : Geelong, from 

 nests of a small variety of Ertdtmn iiui inetaJlicnui, Portland (H. ^^ . 

 Davey). 



Smaller than (jlahripeniiis, difi'erently coloured, and with the club 

 somewhat smaller; the outlines, however, are alu;ost exactly the same. 

 Also close to Davtyi, but larger, prothorax more densely clothed at 

 sides, head wider and more conspicuously fasciculate on each side of 

 base, and elytra wider, with the apex more rounded. Ect'ifomman, an 

 inquiline of the same species of ant, is about the same size, but is 

 of a dingier colour, with shorter antennae and very diii'erent clothing. 



The metasternum varies in colour from black to no darker than 

 the elytra ; two specimens, probably immature, are almost entirely 

 tlavous. On several of the specimens there are very faint renmants 

 of pubescence about the base of the elytra, but they are so extremely 

 faint, that the elytra could iiuite fairly be regarded as glabrous, as 

 they certainly are in some specimens. 



The impression connecting the basal foveae of the prothorax together 

 appears rather shallow and feeble from some directions, but from 

 others it appears to Ije quite deejily impressed Ijut rather narrow ; as 

 results the foveae themselves, according to the points of view, appear 

 either widely separated, or almost touching. 



Scydinatuus inrerticorii is, n.sp. 



("aslaucous, elytra diluted with Havous about apex. Ijut suture 

 somewhat darker ; legs and part of abdomen of a rather dingy tlavous, 

 but tarsi and palpi paler. Elytra with distinct and suberect cloth- 



