THE SPIDERS OF EPPING FOREST. 215 



13. Patella III. at least as long as patella IV. . . . , Euophvys 

 Patella III. shorter than patella IV. ,, ., 14 



14. Palpus of male with femoral apophysis .. ,. Heliophanus 



Palpus of male without femoral apophysis .. .. 15 



15. Caput about half the lenj^th of thorax . . .. Phle^ra 

 Caput much more than half the length of thorax . , Aftus 



Gemis SALTICUS, Latr. 

 [Epihlemum, Hentz, Cambr. List.] 



This genus includes several small spiders with the abdomen 

 of a blackish tint ornamented with diagonal bands of white 

 scales. 



Salticus scenicus, Clerck. The well-known ''Zebra- 

 spider" of our gardens. Common in many parts of the Forest 

 upon palings. 



Salticus cingulatus, Panz. A few specimens found upon 

 willow trunks on Edmonton Marshes. 



A third species is found in Britain, 5. aifinitatus, Cambr. 



Genus MARPESSA, C. L. Koch. 



Large Salticids, usually of plain tints, but nevertheless very 

 beautifully marked. They are not easily seen when motionless 

 upon palings on account of their striking resemblance to splashes 

 of mud. 



Marpessa muscosa, Clerck. Upon palings in Wanstead 

 Park, and several other parts of the Forest. 



Two British species, M. poniatia, Walck, and M. melanognathay 

 Luc. have not yet occurred in the Forest area. 



Genus HELIOPHANUS, C. L. Koch. 



Many of the species of this genus are of various tints of dark 

 metallic green. They are very active spiders, and may usually 

 be found upon sunny days running amongst low plants and 

 adroitly jumping from leaf to leaf. 



Heliophanus cupreus, Walck. This species has occurred 

 at Loughton, Theydon Bois, and Epping. 



Two other British representatives of this genus, H. expevs 

 Cambr., and H. flavipes, C. L. Koch, have not been definitely 

 recorded from the Forest, but several immature specimens taken 

 near Loughton certainly had the appearance of belonging to the 

 last-mentioned species. 



Genus BALLUS, C. L. Koch. 

 Small, dull-coloured Salticids, of a very flattened form, found 



