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Table 1 Identification of visitors included in the three visitor taxa: Apis mellifera , Bombus spp., and lepidopterans 1

From: Self-pollination rate and floral-display size in Asclepias syriaca(Common Milkweed) with regard to floral-visitor taxa

Order Family Genus Species Count
Visitors collected
Hymenoptera Apidae Apis mellifera 51
   Bombus bimaculatus 7
    griseocollis 139
    impatiens 2
    vagans 5
Lepidoptera Arctiidae Lophocampa caryae 1
  Crambidae - - 6
  Geometridae - - 7
  Hesperiidae Pompeius verna 1
  Noctuidae Megalographa biloba 6
  Noctuidae - - 1
  Papilionidae Papilio glaucus 1
  Pyralidae - - 4
Visitors not collected
Hymenoptera Apidae Apis mellifera 24
   Bombus spp. 118
Lepidoptera - - - 12
  Hesperiidae Epargyreus clarus 2
  Papilionidae - - 1
   Papilio glaucus 1
  1. 1Insect visitor’s quick movements at focal inflorescences often prevented us from collecting the visitors. We identified collected visitors to the lowest possible taxonomic level in our lab, and the rest to the lowest possible taxonomic level in the field.