214 THE SPIDERS OF EPPING FOREST.
also. Legs short, strong, adapted for leaping, not greatly spinose, those of the
first and second pairs being often abnormally developed. Tarsal Clavis, two, a
claw-tuft being present.
This is perhaps the most sharply-defined of the spider-families,
its representatives being easily recognised by the arrangement
of their eyes and by their saltatorial habits. Many of the species
are brilliantly coloured, and are in some cases ornamented with
beautiful iridescent scales. The Salticidae are for the greater
part inhabitants of the warmer regions of the globe. Thirty-four
species are recorded as British, but Epping Forest has, up to the
present, furnished us with only ten, representing eight genera.
TABLE OF SALTICIDAE.
1. Spiders of ant-like form, with the pedicle between cephalo-
thorax and abdomen very long and visible from above 2
Pedicle normal .. .. .. .. 3
2. Falces of ♂ normal. Caput level with thorax .. Synageles
Falces of ♂ enormously developed, horizontally extended.
Caput somewhat raised .. .. .. Toxeus
3. Posterior row of eyes set far back upon the cephalo-
thorax, and at its widest part .. .. 4
Posterior row of eyes in front of widest part of cephalo-
thorax .. .. .. .. 5
4. Posterior row of eyes longer than the anterior .. Ballus
Posterior row of eyes equal in length to the anterior .. Neon
5. Coxae I. very close together .. .. .. 6
Coxae I. well separated .. .. .. 7
6. Patella I. almost as long as tibia I. Tarsus of male
palpus very wide .. .. .. Marpessa
Patella I. considerably shorter than tibia I. Tarsus of
male palpus narrow .. .. .. Hyctia
7. Tibia ┼ patella III. at least as long as tibia -|- patella
IV. .. .. .. .. .. 8
Tibia ┼ patella III. shorter than tibia ┼ patella IV. .. 10
8. Anterior row of eyes moderately curved .. .. Aelurops
Anterior row of eyes very slightly curved .. .. 9
9. Tibia ┼ patella IV. longer than tarsus ┼ metatarsus IV, Pellenes
Tibia ┼ patella IV. not longer than tarsus ┼ metatarsus
IV. .. .. .. .. .. Hasarius
10. Metatarsus IV. without spines except at its extremity .. 11
Metatarsus IV. with numerous spines .. .. 12
11. Femora and tibiae with spines. Falces of male normal.. Dendryphantes
Femora and tibiae without spines. Falces of male
excessively developed and horizontal .. .. Salticus
12. Anterior row of eyes strongly curved .. .. Philaeus
Anterior row of eyes straight or nearly so .. .. 13