130 Mr. C. J. With on Chelonetlii 



Ideohisium Balzanii. The fourth pair is broader again, 

 enlarged dislally, with the posterior corner smoothly 

 rounded like the postero-exterior, which is produced back- 

 wards. 



Legs (PI. X. figs. 1 d-f). — The skin of the legs, especially 

 that of the femora and tibise, seems to be minutely shagreened; 

 we find more or less long, pointed, and simple hairs every- 

 where. An exceedingly long " tactile " hair is placed dorsally 

 near the base of first tarsus of the last two pairs of legs. 

 On each side near the base of the claws is placed a rather 

 short hair with some few teeth distally along its upper 

 margin (fig. 1/). The areola is shorter than the slender 

 claws. The legs are long and slender. The basal femoral 

 part of the first pair of legs (fig. 1 d) is three times as long 

 as high and twice as long as the distal part. The tibia is 

 slightly shorter than the basal femoral part and a little 

 longer than the second tarsus, which is about 2'5 times 

 longer than the first. The femur of the fourth pair 

 (fig. ] e) is rather slender and three times longer than 

 high ; the articular membrane of the rather short trochantin 

 is not straight as usual in Ideobisium (cf. p. 134), but 

 oblique as in Olpium. The tibia is distinctly longer than 

 tarsus ii., which is more than twice as long as tarsus i., but 

 shorter than both tarsi together. The trochanter of the 

 first pair of legs is enlarged distally and only a little longer 

 than high ; that of the fourth pair is much moi'c slender and 

 almost twice longer than high. 



Colour. — The palps and maxillse are yellowish brown with 

 darker fingers ; the cephalothorax is brown ; the abdominal 

 tergites are lighter with yellowish interarticular membrane : 

 Avhite spots, placed under the skin, are seen everywhere. 

 The coxse are brownish and the legs yellowish, both with a 

 greenish shade. 



Measurements. — Cephalothorax 0720 (0"588) ; abdomen 

 1-820 (1-036) mm. 



Palps : trochanter 0-392 (0-196) ; femur 0-784 (0*214) ; 

 tibia 0-728 (0245); hand 0-700 (0-388), height 0-420; 

 finger 0-800 mm. 



Leg i. : femur i. 0396 (0-105) ; femur ii. 0-198 (O'lOO) ; 

 tibia 0-315 (0081) ; tarsus i. 0-125, tarsus ii. 0305 mm. 



Leg iv. : femur 0*675 (0'225), trochantin 0235; tibia 

 0495 (0-108) ; tarsus i. 0-162, tarsus ii. 0-360 mm. 



Material. — Mr. II. 11. Smith collected a single female 

 near Chandilly (\Vindwurd Islands) at a height of 800 feet, 

 March 14th, in fermenting cocoa-husks (shady place). 



Remarks. — I have referred the above-described sj)ecics to 



