26 Mr. W. C. Chawley on 



entirely deep black and shining. The sculpture iu the two 

 forms is similar. 



Ciypeus deeply incised in centre (as in type). Scapes 

 pass the occipital border l)y nearly half their length. The 

 spines of the epinotum are longer than in the type, and thin 

 o(f rather suddenly at their miildle, where they bend more 

 than in the type. The scale is shorter, Ijroader, and more 

 deeply notched. 



Gaster with a similar thin golden pubescence to that of 

 the tvpe. 



Ke'lmscott, W.A.. [Clark, no. 25). 



Type W. C. C. coll. 



Iridomyrmex conifer, Forel. 



cJ (hitherto undescribed). Length 5 '0-5 '5 mm. 



Dark brown, nearly black ; tarsi paler. Wings pale 

 brown, with an iridescent tinge. 



Mandibles short, pointed, edentate. Head broader tlian 

 long, narrowed in front and behind, eyes large and globular, 

 a little in front of the middle of sides of head, ocelli large. 

 Ciypeus raised in centre, and depressed just iu front of the 

 anterior border, which is feebly convex. Scapes, which are 

 considerably longer than the second joint of fimiculus, do 

 not quite reach the anterior ocellus. First joint of funi- 

 culus one-third as long as second, which is longest, there- 

 after the joints diminish iu length with the exception of 

 the apical, which is a little longer than the preceding. 



Thorax high and rounded, parapsidal furrows distinct, 

 scutellum prominent. Epinotum regularly convex iu both 

 senses, the base longer than the declivity. Scale in profile 

 short, broad at base, conical ; from above transverse, more 

 than twice as broad as long. 



Genitalia extruded, stipites narrow and pointed, volsellse 

 very long, thin, and pointed, curved tlirough a right angle, 

 bearing a short blunt point on the inner side of base. 



Sparsely provided with short erect hairs, almost absent on 

 scapes and tibiae ; the whole body covered with a close 

 yellow- grey pubescence. 



More or less smooth and shining, with a microscopical 

 reticulation. 



Perth, W.A. [Clark, nos. 27, 34). 



Types W. C. C. coll. 



Iridomyrmex exsanguis, Forel. 



S (hitherto undescribed). Length 2'0 mm. 

 Daik brown; mouth-parts, antenufe, and legs pale yellow- 

 grey. Wings hyaline, iridescent. 



