143 



Antennae (PI. III, flg. le). — The lamina interior with two dentated lobes 

 only; the galea, which has about five almost obsolete distal teeth, does not extend 

 beyond the terminal curved hair. 



Palps (PI. II, fig. 1 d). — The palps are a little longer than the body; the 

 immovable finger bears four anterior-dorsal tactile hairs instead of three. The 

 joints of the palps are as a rule longer and more slender than those of the female 

 and the curvatures of the sides more moderate. The femur is 32 longer than broad, 

 and the tibia is 28 longer than broad; the hand is 15 broader than the tibia and 

 scarcely longer than the fingers, which gape distinctly when closed, because dorsal 

 margin of immovable, but especially of movable, is concave. 



Coxae (PI. II, figs. 9b-c; pi. hi, fig. If). — The fourth pair of coxae are 

 enlarged towards the extremity and bear exteriorly a big spine (fig. If, t)\ the 

 posterior margin is distinctly concave. The coxal sac has the comparatively large 

 basal portion, which does not bear any conical tubercle and hair, well separated 

 from the distal part (cf. pp. 46 — 47 and pi. II, figs. 9 b-c). 



Legs (PI. Ill, figs. 1 h-i). — The lateral terminal hairs of the tarsi are similar 

 to those of the female, but the posterior has the lower branch less curved and 

 the anterior is more suddenly curved. The tarsus of the first pair of legs is deepest 

 just beyond base and has the lower margin convex; it is only about .'i times as 

 long as deep. The claws bear distinct teeth ; those of the first pair of legs are 

 peculiarly shaped; the anterior (ci) is moderately curved with a small ventral tooth, 

 while posterior (ce) is long and slender, almost straight with an almost obsolete 

 anterior tooth (fig. 1 h, ci-ce). 



Colour. — The colour is much lighter yellowish brown with the fingers 

 and the céphalothorax more reddish; but the specimen appears, as if is was not 

 yet quite darkened after the ecdysis. 



Measurements. — Céphalothorax 0-750 (0-600); abdomen 1-590 (0-840) mm. 



Palps: trochanter 0-360 (0196); femur 0-675 (0210); tibia 0675 (0250); hand 

 0-625 (0-360), depth 0360; finger 0-595 mm. 



Variation. — An other, young, male, which had probably not yet passed 

 the final moult, had the transverse stripes of the céphalothorax much more distinct, 

 especially the posterior, which was almost half as broad as the second lergite was 

 long; the tergal keels were almost wanting. The sexual area is apparently not 

 different. The proportions of the palps more similar to those of the female, and 

 the fingers gape only a little, when closed. The galea extends beyond terminal 

 hair. The coxae and legs are scarcely different from those of fullgrown male. 

 The colour is darker, but not so dark as in female. 



Material. — Dr. Th. Mortensen collected two males and one female of this 

 species under bark in the Island of Koh Chang in the month of January. 



Remarks. — This species may be regarded as nearly related to the three 

 following on account of the similarity in the structure of the coxal sac and tarsi 

 of the first pair of legs in the male. 



