783 



with propriety depart from a set custom, and the present 

 instance is, to my mind, a case in which such a departure is 

 justified. The laterigrade grouping of the legs and the general 

 appearance of the caput and falces are the main points that 

 suggest a Thomisid appearance. 



9. Cephalathorax, 1'6 mm. long, 2 mm. broad; 

 abdomen, 2'3 mm. long, 5"2 mm. broad. 



Cephalothorax broadly ovate, broader than long. Pars 

 cephalica pilose, arched, sides declivous, truncated in front, 

 hoary with yellowish markings : ocular area broader than long ; 

 clypeus narrow, not deep. Pars thoracica broad, arched, 

 pilose, yellow, with median and lateral white spots ; radial 

 grooves faintly discernable ; marginal hand narrow, white 

 (fig. 11). Eyes normal. Legs moderately long, robust, pilose, 

 white with yellow annulations, armed with numerous 

 moderately long and moderately strong spines ; underside of 

 legs pale yellow. Relative lengths, 4, 1, 2, 3. Palpi short,, 

 robust, similar in colour, clothing, and armature to legs. 

 Falces short, pilose, white, arched. Maxillae and labium 

 normal, white. Sternum broadly oval, white, arched. 

 Abdomen broadly ovate, boldly overhanging base of cephalo- 

 thorax, wavy in outline, anterior angle truncated, upper- 

 surface convex, pilose, yellowish-grey, ornamented with white 

 markings and black spots, margin lighter in colour than the 

 median area ; inferior surface concave, light grey, corrugated, 

 corrugations marked with dark-brown spots. On the younger 

 forms the abdominal markings show some variation, but 

 naturally such are not constant. 



Hah. — Moorilyanna Native Well. The three examples of 

 D. thomisoides were included among some specimens of 

 Thomisidae, and the dates on the collector's label in the tube 

 reads "July 28, 29, 30, 1914." 



Family THOMISIDAE. 



Several specimens, and these representing three genera, 

 •were collected by Captain White — namely, Tmaris, Diaea, and 

 Stephanopsis — and it is curious to note that the majority of 

 these are immature.. 



Of the genus Tmaris there are two species, one of which 

 (consisting of only one specimen) is not only immature, but 

 too damaged for specific determination ; nevertheless, I am 

 confident it is distinct from the one for which I propose the 

 name T . punctatus. As no species of its genus has, up to the 

 present moment, been described or recorded from Central 

 Australia, it is quite probable it is also an undescribed form^ 

 but before naming it I await further and m.ore perfect 



