268 Wisconsm Academy of Sciences, Arts and Letters. 



70. Quadrangle as wide or wider behind 91 



71. Tibia + patella III shorter than tibia + patella IV 73 



72. Tibia + patelU III longer than tibia + patella IV 81 



78. Mecatirsus + tarsus IV equal to or shorter than patella + tibia IV. 75 



74. Metatarsus + tarsus IV longer than tibia + patella IV 77 



75. Metatarsus IV spined only at extremity Lauhai'ulla Keys. 



76. Metatarsus IV spined to base Astia L. K. 



77. Cephalothorax wider than third row of eyes 79 



78. Cephalothorax not wider than third row of eyes Sinnamora Keys. 



79. Legs moderately long; metatai'sus IV with spines Boetlius TJior. 



80. Legs extremely long; metatarsus IV without spines Lugnus L. K. 



81. Eyes of the second row more than ^ as large as dorsal eyes; tibiae 



spiced above ■ Linus Peckham. 



82. Eyes of second row less than ^ as large as dorsal eyes; tibiae not 



not spined above 83 



83. Cephalothorax not wider than third row of eyes 85 



84. Ceph ilothorax wider than third row of eyes 87 



85. Cephalothorax narrow in front, wider and rounded behind; quad- 



rangle of eyes scarcely wider than long Prostheclina Keys. 



86. Cepalothorax with sides nearly parallel; quadrangle of eyes one- 



third wider than long Saitis E. S. 



87. Abdomen very long and slender, much longer than cephalothorax ; 



cephalothorax much wider than third row of eyes . . .Yiciria Thor. 



88. Abdomen rather short ; cephalothorax but little wider than third 



row of eyes 89 



89. Abdomen about as wide as long ; eyes of second row further from 



lateral than from dorsal eyes Margaronima Keys. 



^0. Abdomen slender ; eyes of secoad row half way between lateral 



and dorsal eyes Therosa Keys. 



91. Quadrangle of eyes equaUy wide in front and behind ; tibia + 



patella III longer than tibia + patella IV 93 



92. Quadrangle of eyes wider behind ; or equally wide in front and 



behind, with tibia -{- patella III equal to, or shorter than tibia 



+ patella IV 99 



^3. Eyes of the third row distant by at least double their diameter 



from the margin of the cephalothorax _'- Zeuodorus Peckhain. 



94. Eyes of the third row not, or only a little i-emoved from the mar- 



gin of the cepha'othorax 95 



95. Metatarsus + tarsus IV equal to, or shorter than, tibia + pa- 



tella IV 97 



'96. Metatarsus + tarsus IV longer than tibia + patella IV. 



Ergaiie Keys. 



^ Linus = Sinis Thorell, preoccupied. 

 ^Zenodorus=Ephippus Thorell, preoccupied. 



