310 ME. C. J. WITH ON SOUTH-AMBRICAJV CHELIFEEIN^ 



Legs. — The legs differ only in mere trivialities from those of the male. 



Measurements. — Cephalothorax 1"150 (1*081) ; abdomen o'32 (1*38) mm. 



Palps: trochanter 0-575 (0-345); femur 0-966 (0-437); tibia 1-035 (0-460); 

 hand 1-127 (0-647), depth 0-635; finger 0-828 mm. 



Leg I.: femur 0-714 (0-205), trochantin 0-137 (0-225); tibia 0-593 (0-137); 

 tarsus 0-479 (0-095) mm. 



Leg IV.: femur 0-851 (0-296); tibia 0-S58 (0-175); tarsus 0-593 (0-122) mm. 



Variation. — The numerous specimens of this species which I have examined differ 

 in several respects, viz. size, granulation of the cephalothorax, shape of joints of palps, 

 especially shape of the tibia of the male, &.C., but on the whole are as described. 



Material. — Of this species I have examined a great number of specimens (about 

 150), most of which were sifted by Dr. Meinert in Venezuela from June to September ; 

 several females collected in August carried their eggs fastened to the abdomen. Other 

 specimens were collected in Mexico, Brazil, and Argentine (Dr. W. Sorensen ; under 

 bark, Riacho dell' Oro). It has previously been recorded from Venezuela, Ecuador, 

 Brazil, Paraguay, and Argentine. 



Parasitism. — A male from La Moka had two minute mites, probably larval stages 

 of a Tyroglyplus, fastened to the trochantin of the first pair and to the articular 

 membrane between the femur and tibia of the fourth pair respectively. 



Remarks. — Regarding the differences between this species and Ch. macrochelatus Tom. 

 I refer to that species ; from Ch. shnilis Balz. it differs by much larger size and shorter 

 hairs, as well as by comparatively shorter and less slender palps — for instance, the fingers, 

 which are 1-2 ( c? ) or 1-3 ( ? ), not 1-4, as long as hand is wide. 



46. Chelifer macrochelatus Tom. (Plate XXXI. fig. 32 a; text-figs. 72-73, 78-80.) 



1884. Tomosvary, (5) p. 20, tab. i. figs. 12-13. 



1891. Lamprochernes macrochelatus Tom., Balzan, (n) pp. 513-514, pi. 9. figs. 4-4 a. 



1903. Ellingsen, (15) pp. 152-154. 



1905. Ellingsen, (17) p. 1. 



1905. Ellingsen, (18) p. 6. 



1907. Chelifer nodulinianus Tom., pars, Tullgrea (23) pp. 46-49, figs. 10 a-f. 



Male. 



Ce^phalothorax. — Large distinct ocular spots are found. The cephalothorax, which 

 is somewhat longer than wide, has the almost straight broad anterior sfrijje very 

 prominent, while the posterior is less distinct and is slightly curved forwards in the 

 middle ; from the anterior stripe to half distance from the front margin a longitudinal 

 groove or depression is found ; the second thoracic tergite is divided by a longitudinal 

 dark band. 



Abdomen. — The fairly long and slender, but somewhat depressed abdomen has all 



