Collembola 21 A 



PLATE 6. 



Fig. 48. Isotoma viridis, eyes and postantennal organ of left side, X 185. 



49. Isotoma viridis, left hind foot, X 295. 



50. Isotoma viridis, left mucro, X 635. 



51. Isotoma viridis, left aspect of tenaculum, X 185. 



52. Isotoma viridis, dorsal setae of third abdominal segment, X 1 l.'j. 



53. Isotoma palustris, eyes and postantennal organ of left siilc, X 166. 



54. Isotoma palustris, left hind foot, X 495. 



55. Isotoma palustris, left mucro, X 505. 



56. Isotoma palustris, left aspect of tenaculum, X 2">(). 



57. Isotoma palustris, dorsal setae of second abdominal segment, X 250. 



PLATE 7. 



Fig. 58. Entomobrya comparata, dorsal pattern of head, X 77. 



59. Entomobrya comparata, to show pigmentation, X 34. 



60. Entomobrya comparata, eyes of right side, X 278. 



61. Entomobrya comparata, left hind foot, X 475. 



62. Entomobrya comparata, left mucro and end of dens, X 748. 



63. Entomobrya comparata, left aspect of tenaculum, X 237. 



64. Lepidocyrtus cyaneus, eyes of left side, X 282. 



65. Lepidocyrtus cyaneus, left hind foot, X 748. 



66. Lepidocyrtus cyaneus, left aspect of left mucro and end of dens, X 748. 



PLATE 8. 



Fig. 67. Sminthurides aquations, eyes of left side, X 400. 



68. Sminthurides aquations, right mid foot, X 1010. 



69. Sminthurides aquations, left hind foot, X 1010. 



70. Sminthurides aquations, dorsal aspect of right mucro, X 513. 



71. Sminthurides aquations, left mucro, X 513. 



72. Sminthurides aquations, right aspect of tenaculum, X 673. 



Figures 67, 70 and 71 are from Massachusetts specimens. 



