1919] Chamherlin: Western Spiders 259 



EXPLANATION OF PLATES. 



Plate XIV. 



Fig. 1. Epig^-num of Amaurobius nomeus sp. nov. 



Fig. 2. Male palpus, dorsal view, of the same. 



Fig. 3. Right chelicera, ectal view, of Dictyna uintana sp. nov. 



Fig. 4. Epigynum of the same. 



Fig. 5. Right male palpus, ectal view, of the same. 



Fig. 6. Left chelicera, of male, ectal view, of Dictyna coloradensis sp. nov. 



Fig. 7. Epigynum of the same. 



Fig. 8. Right male palpus, ectal view, of the same. 



Plate XV. 



Fig. 1. Epigynum of Dictyna vincens sp. nov. 



Fig. 2. Right male palpus, ectal view, of the same. 



Fig. 3. Right chelicera, ectal view, of Dictyna bellans sp. nov. 



Fig. 4. Epigynum of the same. 



Fig. 5. Right male palpus, ectal view, of the same. 



Fig. 6. Right male palpus, ectal view, of Dictyna insolens sp. nov. 



Fig. 7. Right male palpus, ectal view, of Dictyna olympiana sp. nov. 



Fig. 8. Epigynum of Dictyna sociella sp. nov. 



Plate XVI. 



Fig. 1. Epigynum of Dictynoides arizonensis sp. nov. 

 Fig. 2. Epigynum of Drassodes robinsoni sp. nov. 



Fig. 3. Left male palpus, ectal view, of Drassodes gosiutus sp. nov. (All hairs and 



spines omitted as usual, excepting ventral distal spines of tarsus.) 

 Fig. 4. Left male palpus, ectal view, of Drassodes melius sp. nov. 

 Fig. 5. Epigynum of the same. 



Fig. 6. Left male palpus, ectal view, of Heryullus oabus sp. nov. 

 Fig. 7. Epigynum of Zelotes tuobus sp. nov. 



Plate XVII. 



Fig. 1. Right male chelicera, ectal view, of Psilochonis utahensis sp. nov. 



Fig. 2. Right male palpus, ectal view, of the same. 



Fig. 3. Left male palpus, ectal view, of Linyphia latescens sp. nov. 



Fig. 4. Epigynum of Linyphia orinoma sp. nov. 



Fig. 5. Epigynum of Bathyphantes fillmorana sp. nov. 



Fig. 6. Epigynum of Grammonota obesior sp. nov. 



Fig. 7. Epigynum of Grammonota orites sp. nov. 



Fig. 8. Right male palpus, ectal view, of the same. 



Fig. 9. Right male palpus, dorsal view, of the same. 



Plate XVIII. 



Fig. 1. Left male palpus, ectal view, of Grammonota simplex sp. nov. 



Fig. 2. Epigynum of the same. 



Fig. 3. Epigynum of GrammoHo/a/ra/re//a sp. nov. 



Fig. 4. Epigynum of Cornicularia monticolens sp. nov. 



