334 



SCIENCE- G OSSIP. 



Cnephalocotes elegans Cb. 



Cnephalocotes laesus L. Koch. 



cotes interject us Cb. ) 



Cnephalocotes curtus Sim. 



( Cnephalo- 



Cnephalocotes silus Cb. 

 Drawings of structural details will be given for the 

 differentiation of these closely allied species. 



Fig. i. Radial Joints of Male Palpi. 



a. Tapinocyba pattens, from above, b. T. subaequalis, ditto. 

 c. T. incuruata, side view. d. T. subitanea, from above. 

 e. T. praecox, ditto, f. Cnephalocotes obscurus, ditto, g. C. 

 elegans, ditto, h. C. curtus, side view. i. C. laesus, from 

 above, j. C. silus, ditto, k. Troxochrus ignobilis, ditto. 

 /. Styloctetor broccha, ditto. in. S. broccha, side view. 

 n. S. penicillatus, ditto, o. S. penicillatus, from above. 

 /. Metapobacti-us prominulus, ditto, q. Pocadicnemis pumi- 

 Ins, ditto, r. P. pumilus, side view. s. Araeoncus humilis, 

 from above, t. A. crassiceps, ditto. u. A. vaporariorum, 

 ditto, v. Peponocranium ludicrum, ditto, w. Lophocare?ium 

 nemoralc, ditto, x. L. parallctum, ditto, y. L. blackivallii , 

 ditto, z. L. mengei, side view. 



Troxochrus ignobilis Cb. (Walckenaera 

 ignobilis in " Spiders of Dorset.") 



Length of male 1.25 mm. 



Cephalo-thorax dark brown. Legs reddish-brown, 

 the femora being the darkest. Abdomen sooty black. 

 A rare species. 



Troxochrus hiemalis Bl. 



Length of male 1. 7 mm., female 1.75 mm. 



The general colouring of this species is very 

 similar to that of T. ignobilis. It is, however, con- 

 siderably larger. 



Araeoncus crassiceps Westr. (Walckenaera 

 affinitata Cb. ) 



Length of male 1.7 mm. 



The caput is raised and overhangs the clypeus. 



Araeoncus vaporariorum Cb. 



In this species the caput is far lower than in 

 A. crassiceps. 



The radial joint of the male palpus is extremely 

 large, and projects greatly over the digital joint. 



GENUS PEPONOCRANIUM SIM. 



The posterior row of eyes is very strongly curved. 

 The tibial spines are rather long, and are placed 

 towards the end of the joint. 



Peponocranmm ludicrum Cb. ( Walckenaera 

 hidicra Bl. ) 



Length. Male 1.5 mm., female 1.6 mm. 



In this species the cephalic eminence of the male 

 is very large and conspicuous, sloping backward from 

 the lower edge of the clypeus. Near the apex of this 



Fig. 2. Cephalo-thoraces of Male Spiders in Profile. 



a. Tapinocyba palleiis. b. T. subaequalis. c. T. incurvata. 

 d. T. subitanea. e. T. pTaecox. f. Cnephalocotes obscurus. 

 g. C. elegans. h. C. laesus. i. C. silus. j. Troxochrus 

 scabriculus. k. T. ignobilis. I. T. hiemalis. m. Metapo- 

 bactrus pi'ominulus. n. Pocadicnemis pumilus. o. Arac- 

 oncus humilis. p. A. vaporariorum. q. A. crassiceps. 



prominence are situated the posterior central eyes, 

 the remaining eyes being placed in a transverse group 

 some distance lower down upon its front part. 



( To be continued. ) 



