150 



Leg I: réunir Ü-522 (0162), Irochaiilin 0100; libia 0396 (0.105); tarsus 0-370 

 (0067) mm. 



Leg IV: femur 0639 (0-252), trocliantin 0225; libia 0610 (0140); iarsus 0-477 

 (0090) mm. 



Variation. — Another, probably a young female, is in a few respects différent; 

 the eyes are placed nearer to the front margin; the abdomen flallened obovate in 

 shape. The palps comparatively more slender and with the number and the 

 arrangement of the sense-spots of the fingers slightly differing; the posterior con- 

 vexities of the tibia and also the lateral ones oflhe hand more moderate; the 

 hand is only 15 times broader than the tibia and 1-8 times longer than broad. 

 The terminal lateral hairs of the legs are slightly modilied. The dimensions of 

 the body and the appendages are smaller. 



c?. Céphalothorax. — Not very distinct eyes removed from front margin 

 a distance equal to their diameter. The two slripcs, of which the anterior is very 

 moderately curved backwards in the middle and the posterior is the broadest, are 

 more prominent and broader than in female. Anterior lergile is i)rovided with two 

 small eminences behind, one near the lateral corner and shaped like a small spine 

 and another more rounded a little more inwards; the second tergite has the 

 posterio-lateral corner produced into a fairly big spine, in front of which a short 

 longitudinal elevation. Along the posterior margin of the latter tergite a row of 

 about 12 hairs with ils lateral ones placed on already mentioned spines, and in 

 addition one lateral placed in front of the row on each side on the elevation in 

 front of spine. 



Abdomen. — The abdomen is very llallened, broadest in the middle and 

 here not very much broader than long; it has the IV to the X tergites distinctly 

 divided by a thin longitudinal line. The five first tergites are provided with keels, 

 which attain their highest development in the second tergite and decrease 

 beyond towards the fifth one. They are directed upwards and outwards, and 

 slightly produced posteriorly and even anteriorly, but their tip is always more or 

 less rounded, not pointed as in Ch. depressns C. K. The lateral membrane is not 

 directly connected with the ventral portion of these keels, but the tergites are pro- 

 longed beneath the keels as perpendicular, strongly cliitinized portions, the one 

 overlapping the other and bearing scale-shaped granulations; these prolongations 

 are convex from above to below and therefore assume, as seen from above, the 

 appearances of low keels or longitudinal elevations beneath the real one, which 

 they sui)porl. The following five tergites are very slightly produced posteriorly. 

 All the tergites bear a single lateral hair in front of the row placed on the keel; 

 the first to the eighth tergites bear 16 hairs, but the number is not always the 

 same on each side of the longitudinal line, the ninth and the tenth have only 12, 

 and those of the eleventh are placed in two rows; tlie eleventh segment bears two 



