IN THE BEITISH AND COPENHAGEN MUSEUMS. 321 



IV. Group of Chelifer biemanicus Thor. 



Femur of the first pair' of legs with ivide oblique articular cavity, with posterior condylus 



placed near ventral margin. Real eyes always wanting. Fingers of palps without 



accessory teeth. "Tactile" hair of tarsus IV. basal. Genital area of s of 



birmanicus type. 



{Claws as well as subterminal hair simple. Transverse grooves iridistinct or wanting. 



Hairs pointed and almost simple ; tibia of palps hasally tvith a pair of long, slender, 



completely simple hairs. Flagellum consists of four hairs, and sexual difference is 



found in the galea.) 



I think that the two following species are naturally referred to the same group as 



Ch. birmanicus Thor. (cf 20. p. 133), as they entirely agree with that species in 



structure with the exception of the genital area of the male, which in the badly preserved 



specimens of Ch. nidificator Balz. at least is less conspicuous than in Ch. birmanicus 



Thor. {cf. 10. p. 124, tab. iii. fig. 10«), but nevertheless seems to be similar in 



important features. As seen from the above, only two species of those which EUingsen 



refers to Atemnus Can. {cf. 18. p. 2) belong to this group, the other three are more 



naturally referred to the subgroup of Ch. subrohustus Balz. 



Synopsis of Species. 



a. Trochanter not higibbose ; tibia with short stalk 50. Ch. nidificator Balz. 



b. Trochanter distinctly bigibbose ; tibia with long and slender stalk . 51. Ch. elongatus ILW. 



50. Chelifee NiDiFiCATOE Balz. (Plate XXXI. figs. 36a-c; text-fig. 83.) 



1890. Balzan, (10) pp. 417-418, tav. xiii. figs. 5-5 b. 



1891. Atemnus nidificatfir Balzan, (11) pp. 510-511, pi. 9. fig. 1. 

 1902. EUingsen, (15) pp. 146-148. 



1905. EUingsen, (18) p. 2. 



1905. Elbngsen, (19) pp. 323-324. 



1907. Tullgren, (23) p. 56. 



Male. 



Cephalothorax. — Ocular spots rather indistinct. The cephalothorax, which is 

 scarcely longer than wide, has no transverse grooves, is smooth and provided with fairly 

 long hairs. 



Abdomen. — The fairly long slender abdomen has generally the tergites indistinctly 

 divided with the exception of the first three and the last one ; the division of the 

 tergites is sometimes not complete, consisting of an anterior and a posterior incision 

 separated in the middle ; a similar incision may be observed in the second and third 

 segments posteriorly as well. The sclerites are smooth, and the tergites possess along 

 their hindmost margin from 8-12 long or very long, almost simple hairs placed within 



VOL. XVIII. — PAET III. No. 14. — October, 1908. 2x 



