IN THE BEITISH AND COPENHAGEN MUSEUMS. 267 



24. Chelifer bicolok Balz. (Plate XXX. figs. 15 a-e.) 

 1891. Trachychernes bicolor Balzan, (ii) pp. 524-525, pi. 10. figs. 16-16 «. 



Male. 



Ceplialothorax. — Small, fairly distinct ocidar spots are found. The cephalothorax, 

 which is slightly longer than wide, has two fairly distinct, almost straight transverse 

 grooves. The integument is distinctly granular, except on the two white spots of the 

 second tergite, and bears a number of short, slightly clavate hairs. 



Abdomen (PI. XXX. fig. 15 c). — The abdomen is long and slender, and all its 

 tergites are longitudinally divided ; the dark spots of the tei'gites are granular, and 

 from 10-12 moderately long, obtuse or slightly clavate hairs are placed along the 

 hinder margin of the tergites, which in addition possess two lateral and two median 

 hairs in front of the row, the last-mentioned not very distinctly so. The eleventh 

 tergite has a pair of rather short " tactile " hairs. All the sternal sclerites are well 

 developed, and all but the eleventh longitudinally divided by a broad band. The 

 genital area had the anterior plate much longer than the posterior (fig. 15 c). 



Antennae. — The terminal hair extends distinctly beyond the very short, somewhat 

 pointed galea, which has a tiny median as well as two terminal teeth. 



Palps (PI. XXX. figs. 15 a-i). — The maxillce are almost smooth in the middle, but 

 laterally granular ; the palps are minutely granular, except the fingers and the hand 

 below ; the hairs of the proximal joints are obtuse and dentated, rather short, and 

 passing over into the moderately long, simple, or almost simple of the hand and 

 fingers. The trochanter, which is 1-5 as long as wide, is anteriorly moderately 

 convex, while posteriorly it is slightly produced beyond the stalk ; dorsally it is 

 produced into a somewhat conical protuberance, only slightly pronounced. The 

 femur has a short and well-defined stalk, beyond which it is distinctly widened out 

 to a point somewhat beyond the middle and then becomes slightly attenuated. It 

 is 2-3 as long as wide ; the anterior outline is slightly convex and then concave, 

 while the posterior outline is rather abruptly convex beyond the stalk, in the middle 

 slightly concave, and then a trifle convex. The tibia, which has a rather short and 

 fairly well-marked stalk, is a little longer and wider than the femiu- and 2-2 as long 

 as wide ; anteriorly beyond the stalk it is convex and then slightly concave terminally, 

 while the posterior outline beyond the condylus is almost straight, as the basal eleva- 

 tion is very insignificant, and then slightly convex. The chela, which is about 2*4: as 

 long as wide, is 1-4 broader than the trochanter is long ; the hand, which is as long as 

 but 1*5 wider than the tibia, is 1'4 as long as broad, bui only 1*1 longer than deep, is 

 1*2 deeper than broad and about 1'4 longer than finger, which is a trifle longer than 

 the hand is broad ; the lateral outlines are moderately convex and so is the ventral, 

 but the dorsal is almost semicircular. The number of accessory teeth seems to be 

 fairly constant, viz. anteriorly about five on both fingers and posteriorly about ten. 



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