No spines on the legs 



Erigonidae Erigonids 

 (Micryphantidae) 



34. Eyes all white 35. 

 Eyes all dark 39. 



35. Legs extremely long and slender (about four times the length of the body) 



and chelicerae each with tw^o short opposing claws 

 Pholcidae Pholcids 

 Not so 36. 



36. No bristles on tarsi; last pair spinnerets long and often two- jointed 



Agalenidae Funnebweb Spiders 

 With serrated bristles on tarsi 37. 



37. Chelicerae joined together at base; eyes usually six 



Sicariidae Sicariids 

 (Scytodidae) 

 Chelicerae free; eyes six or eight 38. 



38. With six eyes 



Leptonetidae Leptonetids 

 With eight eyes 



Argxopidac Orb Weavers 

 {Epenidae) 



39. With a cribellum and calamistrum (except in some adult males) ; pos- 



terior metatarsi with a series of curved spines below 

 Vlohoridac Uloborids 

 Not so 40. 



40. Trochanters each with a distinct, rounded notch in the outer, ventral 



margin 41. 



Trochanters not notched (except sometimes the fourth) 42. 



41. Eyes in three rows, the first row with four small eyes and the second and 



third rows each with two large eyes; hair on integument simple 



Lycosidae Wolf Spiders 

 Eyes usually in two rows, with the posterior row only slightly recurved; 

 hair on integument plumose; legs long 



Pjsauridae Nursery-web Spiders 



42. Eyes unequal in size 



Oxyopidae Oxyopids 

 Eyes about equal 43. 



43. No spines on tarsi; posterior spinnerets long and often two- jointed 



Agalenidae Funnel-web Spiders 

 Tarsi with serrated spines; posterior spinnerets not much longer than the 

 anterior pair 



Argwpidae Orb Weavers 

 {Epeiridae) 



GENERAL REFERENCES 



Banks, N. 1905. Synopses of North American Invertebrates — Families and 

 Genera of Araneida. Amer. Nat., Vol. 39. 



213 



