1a

Femora IV with double row of bent hairs in proximal half of ventro-prolateral aspect

genus Leucauge

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1b

Femora IV without such rows of hairs

2

2a

Abdomen long and narrow, more than twice as long as wide. Chelicerae very long, males have a strong projecting spur on anterior surface

genus Tetragnatha

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2b

Abdomen oval, less than twice as long as wide. Chelicerae not so long, frontal spur absent

genus Pachygnatha