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A Key to the superfamilies of the Lepidoptera
with special reference to North and South Dakota
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15 (14').
Hw with veins Sc and R parallel for length of discal cell or forming a basal
areole as long as discal cell. Fw venation trifid or quadrifid.
Superfamily Drepanoidea
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Ventral hindwings of
Drepana arcuata Walker (left) and Euthyatira pudens (Guenée):
Basal areole shown in pink, discal cell in blue. Sc+R and Rs veins shown
against green.
| Family Drepanidae,
Hook-tip moths
include 650 species world wide and 20 in North America. Three of the
seven species from the northern Great Plains have the combination of falcate
fws and M2 present on the evenly rounded hw; three species have
quadrifid fw venation (note presence of abdominal tympanum) and one pure
white species has lamellate antennae. |
From left to right: Drepana arcuata
Walker, Oreta rosea (Walker)
and Habrosyne scripta (Gosse)
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15' Hw
with veins Sc and R closely approximate at wing base and then divergent or
divergent from wing base and lacking basal areole. Fw venation trifid. Superfamily Geometroidea. |
Scopula sp. (left), Eubaphe sp. (right). Basal areole
shown in pink, discal cell in blue, veins Sc+R, Rs and M1 shown
against green background.
The three North American families are separated as
follows.
Return to beginning of
Key
Return to Key introduction
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