188 PROCEEDINGS OF THE ACADEMY OF lApHl, 



evidently Peckhamia scorpiona Htz., so for our Myrmarachne I 



propose 



Myrmarachne hentzi n. n. 



Salticus ephippiatus Peck, Emer. ((not Hentz). 

 SaUicus albocinctus Banks (not Koch). 



Explanation of Plates XI, XII, XIII. 

 Plate XI. 



Fig. 1. — Philodromus prcelustris. 



Fig. 2. — Misumena spinosa, palpus and abdomen. 



Fig. 3. — Pachygnatha furcillata, abdomen and mandible. 



Fig. i.—~Ebo oblonga, abdomen. 



Fig. 5. — Philodromus satullus, leg. 



Fig. 6. — Xi/sticu.s }'(iri<iJ)iU.s, dorsum. 



Fig. 7. — Xi/slir/is luDniiliis, abdomen. 



Fig. 8. — Svijliiiiis ci/atH in ntris, vulva. 



Fig. 9. — Xi/sliciis piiiirhitns, abdomen. 



Fig. 10.— A'//.s//r//x lnr,lj,lrs, Vulva. 



Fig. 11. — A'^.s//.''(/.s- iiiiiiioni, vulva. 



Fig. 12. — Philodromus expositus, femur. 



Fig. 13. — Megamyrmecion californicwn, eyes. 



Fig. 14. — Azilia vagepicta, eyes, vulva, femur. 



Fig. 15. — Sosippus californicus, vulva. 



Fig. 16. — Misumena georgiana, vulva, thoracic mark. 



Fig. 17. — Philodromus marxi, vulva. 



Fig. 18. — Xysticus benefactor, vulva. 



Plate XII. 



Fig. 19. — Sosilaus spiniger, eyes and palpus. 



Fig. 20. — Amaurobius yievadensis, vulva and palpus. 



Fig. 21. — Cdstiiinn'ni Jiiciilcaraia, palpus. 



Fig. 22. — (;h iini/niillia innrtDni, palpus, mandible. 



Fig. 2'i.—Tilintiis nih'fnrnirus, eves, vulva. 



Fig. 24.—A>nnurnhiNs pnius, vulva. 



Fig. 2.5. — Phi/s,iri/rh,s ,li)i/i'.si\ palpus. 



Fig. 26.—i'asli,u,rini Inralcarata. 



Fig. 27. — Amaurobius severus, vulva. 



Fig. 28. — Linyphia galbea, vulva. 



Fig. 29. — Plectrurys tristis, palpus. 



Fig. 30. — Maypacius floridanus, eyes. 



Fig. 31. — Linyphia galbea, abdomen. 



Plate XIII. 



Fig. 32. — Cicurina robusla, vulva. 



Fig. 33. — Cicurina ludovicina, vulva. 



Fig. 34. — Cicurina pusilla, vulva. 



Fig. 35. — Cicurina simplex, vulva. 



Fig. 36. — Cryphoeca peckhami, vulva, leg. 



Fig. 37. — Cybceus morosus, vulva. 



Fig. 38. — Cicurina simplex, palpus. 



Fig. 39. — Tegenaria emertoni, vulva, spinneret. 



Fig. 40. — Cicurina pusilla, palpus. 



Fig. 41. — Tegenaria emertoni, palpus. 



Fig. 42. — Agelena hentzi, vulva. 



Fig. 43. — Cicurina atomaria, vulva. 



Fig. 44. — Cicurina nevadensis, vulva. 



Fig. 45. — Cicurina tersa, vulva. 



Fig. 46. — Calotes bimucronatus, palpus. 



Fig. 47. — Tegenaria nana, eyes, vulva. 



Fig. 48. — Cicurina tersa, palpus. 



