KEY TO SPECIES 



OF 



CENTRAL AMERICAN AND MEXICAN ATTIDiE, 



EXCLUSIVE OF LYSSOMAN^E WHICH ARE NOT 

 ANT-LIKE IN FORM. 



MALES. 



1. SjDiders ant-like in form, . . . . . .2 



Spiders not ant-like in form, ..... 7 



2. Ej'es in four rows, . . . Simonella americaha. 

 Eyes in three rows, ....... 3 



3. Falces horizontal, pai'allel, long, .... 4 

 Falces vertical or inclined, . . . . • . 5 



4. Cephalothorax without constrictions; cephalic part 



occupying one-half of cephalothorax ; tube of pal- 

 pus almost straight, . . Paradamoetas formicina. 

 C'ephalothorax with a constriction ; cephalic partoccu- 

 ing less than one-half of cephalothorax ; tube of pal- 

 pus coiled two or three times, . Salticus centralis. 



5. Spiders 4 to 5 mm. long ; legs, 1432, Martella Pottsii. 

 Spiders about 3.3 mm. long; legs, 4132, ... 6 



6. Cephalothorax black, . . . Keyserlingella cara. 

 Cephalothorax reddish-brown, with eyes on black 



spots, and a pair of oblique white lines on each side 

 ■ of the thoracic part, . . Keyserlingella perdita. 



7. Falces long, horizontal, rounded ; coxa and trochanter 



of first leg, looked at from above, almost as long as 

 femur, .... Avitus diolenii (page 58 

 Coxa and trochanter of first leg plainly shorter than 

 femur, 8 



