E. M. Walker

16 public-domain plates in the archive

• Lestes forcipatus 20 Jul 1934
• Sympetrum internum 23 Jul 1936
• Lestes dryas 22 Jul 1943
• Helocordulia uhleri 3 Jun 1940
• Lestes disjunctus 21 Jul 1949
• Lestes disjunctus 25 Aug 1922
• Somatochlora franklini 8 Jul 1931
• Lestes congener 12 Aug 1933
• Syzeuctus sigmoidalis 25 Jul 1918
• Lestes disjunctus 17 Jul 1949
• Lestes disjunctus 7 Aug 1941
• Leucorrhinia borealis 7 Jul 1931
• Lestes vigilax 12 Jul 1929
• Aeshna eremita 8 Aug 1910
• Aeshna eremita 8 Aug 1910
• Leucorrhinia borealis 8 Jul 1931