94 Mr. R. I. Pocock on the Genus Poecilotheria. 



fa.iciafa, but with tlie digital black stripe very broad on the 

 third k'g, and broader than the pale basal portion, and on the 

 fourth leg as broad as the basal pale i)ortion. \n fasciata tiie 

 black stripes on those t'eniora are narrow, niucii narrower 

 than the pale basal portion. 



Further differing from P. fasciata in possessing, like the 

 Indian species, a thick fringe of hairs along the outer side of 

 tlie femora of the first and second leg, and in a lesser degree 

 of the third leg. In the examples of fasciata known to me 

 these fringes are not present. 



Measurements in millimetres. — Total length 46 ; length of 

 carapace 19, of first leg 64, of second 58, of third 49, of 

 fourth 61 ; patella and tibia of first 24, of fourth 21 ; pro- 

 tarsus of fourth 15. 



Loc. llatnapura, S. Ceylon {Rev. J. Burrows). 



The differences between this species and P. /ascza^a have 

 been sufficiently dealt with in the description. In most of 

 the characters in which it differs from P. fasciata it approaches 

 P. striata, but has the femoral stripes much narrower and 

 possesses a black patch on the inner side at the base of the 

 anterior femora, which is absent in P. striata. 



Table for the Determination of the known Species of 

 Poecilotheria, based upon Females. 



a. Femora * of legs a uniform dark colour beneath 

 and on inner side, not striped black and wbite or 

 black and yellow ; (anterior femora not fringed). 



«'. Legs and palpi conspicuousl}^ banded on their 

 upper sides, the lower and inner sides of the 

 palpus and of the first and second legs showing 

 a conspicuous yellow spot on the apex of the 

 femur, the basal half of the patella and at both 

 ends of the tibife, the S])ot on the base of the 

 tibia occupying barely one third of the length of 

 the segment ; third and fourth legs similarly 

 banded, but with smaller spots ; legs without 

 strong metallic blue reilections below subfusca, Poc. 



i'. Legs and palpi scarcely noticeably banded above, 

 lower side of palpi uniformly dark-coloured ; 

 lower side of legs similarly darli-coloured, but 

 with a large orange-yellow spot at the base of 

 the tibia and extending over nearly half its 

 length ; legs (especially the anterior two pairs) 

 with strong metallic blue rellection below metallica, sp. n. 



* The legs of spiders consist of seven segments, named as follows from 

 base to apex : — coxa, trochanter, femur, patella, tibia, protarsus, tarsus. 

 In the palpus (the small front leg) the protarsus is absent. 



