242 



ME. H. R. HOGG ON 



[June 4, 



This statement will be seen to be only a printer's error in the 

 description of the genus, as in that of the type species it is the 

 other way — the lip is broader than long, and no exception to 

 the rest. However, the eye-space is certainly much shorter than 

 in Idiommata or Encyocrypta (at any rate than in E. reticulata 

 L. K.) ; and I think the genus should stand. 



I recorded specimens of Idioctis helva L. Koch as having come 

 from Central Australia (Horn Expedition, vol. ii. p. 335). On 

 comparing my notes with specimens of /. helva in the British 

 Museum, this must clearly be a new species, which I describe below 

 under the name of /. palmamm. 



Genus Idioctis L. Koch. 

 Idioctis palmaetjm, n. sp. (Text-fig. 26.) 

 Text-fig. 26. 



a. Eyes of Idioctis helva (Keyserling Collection), b. I. palmamm. 

 c. Eyes of /. palmamm. 



Cephalothorax, mandibles, legs, and palpi walnut-brown ; 

 sternum, lip, and maxillse rather paler. Abdomen — upperside 

 yellowish brown with dark-brown median line, six dark lines on 

 either side, thence sloping towards the rear ; underside rather 

 paler without distinct markings, posteriorly the yellow shading 

 into grey. 



Cephalothorax ovate, truncate anteriorly, rounded at rear ; 

 cephalic part distinctly separated by lateral furrow. Thoracic 

 fovea transverse, straight. 



Front side-eyes rather less than their diameter apart ; front 

 median two-thirds diameter of latter, half their diameter apart ; 



