8 PECKHAM. [Vol. 3. 



27. Tarsus of palpus black ; abdomen vivid red with basal 



and central bands white, ..... 



. Heraclea regia or Heraclea sanguinea* (page 77 

 Tarsus of palpus reddish ; abdomen white with two 

 brownish-red bands, . Menemerus fannse (page 74 



28. Abdomen with a central white herring-bone stripe 



edged with red, . . Heraclea rustica (page 79 

 Abdomen without herring-bone stripe, Hyllus pratensis. 



29. Small spiders, about 3.5 mm. long, with femur and 



tibia of first leg much enlarged, . Ashtabula zonura. 

 Unlike the above, . . .• . . . . 30 



30. Legs, 1342, 31 



Legs, 1423, 33 



31. Tibia of palpus about two-thirds as long as tarsus ; 



cephalic plate with a bunch of hairs ; abdomen 

 light-colored, iridescent . Helorus flavens (page 31 

 Tibia and patella of palpus together shoi'ter than 

 tarsus ; no bunch of hairs on cephalic plate ; ab- 

 domen with longitudinal white bands or with nu- 

 merous spots, ....... 32 



32. Tibia of palpus with a very Ijroad blunt apophysis ; 



first leg dark with a fringe of hairs on the patella 

 and tibia, abdomen marked with spots, 



Habrocestum jaaratum (page 63 

 Tibia of palpus with long pointed apophj'sis; first leg 

 light-colored without fringe of hairs ; abdomen 

 white with longitudinal reddish-brown bands, 



. Menemerus fannse (page 74 



33. Palpus with patella and tibia together shorter than 



tarsus ; ground color of abdomen light, . 



Akela charlottee (page 95 



Palpus with patella and tibia together longer than 

 tarsus ; ground color of abdomen dark, . . 34 



liah between them it will be 



