118 Annals of the, South African Museum. 



(excl. of stalk) 0-20 ; lat. 0-14. Hand : long. 0-24 ; lat. 0'17. 

 Fingers : long. O20 mm. 



Habitat. Cape Province. King William's Town Div. : Frankfort 

 Hill (R. Godfrey), April, 1909, 2 specimens, under stones, 3,000 feet 

 above the sea. 



NOTE. This species is closely related to Ideobisium (Ideoblothrus) 

 bipectinatum Daday, from New Guinea. I have compared the 

 South African form with a specimen from the Bismarck Archi- 

 pelago, which I have identified with Daday's species, and I should 

 be inclined to take them to be varieties of the same species were it 

 not that the localities are so far apart. But there are, nevertheless, 

 some small differences : the New Guinea form has the galea curved, 

 the front side of femur more convex in the basal part, and the outer 

 side nearly straight, tibia still more subglobose, thus shorter in pro- 

 portion to the width, the outer side of the hand not quite straight, 

 but somewhat convex, and the fingers proportionally shorter. Both 

 species are of small size. Ideobisinm Godfrci/i is the first Ideoblothrus 

 known from Africa. 



36. IDEOBISIUM QUADRISPINOSUM Tullgren. 



Cape Province. Cape Peninsula : (R. M. Lightfoot), 1 J , 1 jun. ; 

 Signal Hill (W. F. Purcell), 6 J, 6 2, 8 jun.; (R. M. Lightfoot), 

 1 $ ; (S. C. Cron wright Schreiner), 1 ? ; Wynberg Hill (F. Tre- 

 leaven), 1 $ ; Table Mountain at Kasteel's Poort (W. F. Purcell), 

 1 ? ; Newlands (L. Peringuey), 7 $ , 2 $ (on these specimens see 

 special remark below). Caledon (W. F. Purcell) 1 $ . 



In the Rev. R. Godfrey's collection there are 2 3 , 4 $ , 3 jun. 

 from King William's Town Div. : Pirie Forest and mountains. 



During the printing I received from Mr. Godfrey one specimen 

 from Griqualand East : Isolo (Miss Fanny Ross), June, 1912. 



Mr. Godfrey remarks in a letter : " A ground species living under 

 stones, in the forest and also on the open hillsides, up to 3,000 feet. 

 It is not at all abundant." 



NOTE. I have referred all specimens mentioned above to 

 Tullgren's species, in spite of some differences from his description. 



Tullgren's specimen was certainly very young and of small size ; 

 the former fact is apparent from the very pale colour; there are 

 among the specimens enumerated above some that are pale and 

 young and then of about the same size as Tullgren's animal. But 

 if my identification is correct, the adult species is of a considerably 

 greater size. The largest specimens came from Newlands (L. 

 Peringuey leg.), and among these are two females which attain 



