Christiansen

18 public-domain plates in the archive

• Enallagma vesperum 8 Jul 1946
• Lestes congener 23 Aug 1942
• Gomphus spicatus 17 May 1941
• Enallagma civile 22 Sep 1961
• Epitheca spinigera 17 May 1941
• Lestes disjunctus 23 Aug 1942
• Celithemis elisa 6 Aug 1940
• Libellula quadrimaculata 31 May 1941
• Libellula quadrimaculata 31 May 1941
• Enallagma laterale 6 Jun 1941
• Libellula pulchella 28 Jun 1961
• Epitheca spinigera 17 May 1941
• Epitheca spinigera 17 May 1941
• Hetaerina americana 11 Aug 1959
• Lestes congener 13 Oct 1941
• Hetaerina americana 11 Aug 1959
• Pachydiplax longipennis
• Enallagma civile 23 Aug 1942