Hemithea
Duponchel, 1829
emerald moths
Species Guides
1- Hemithea aestivaria(Common Emerald)
Hemithea is a of emerald moths in the Geometridae, established in 1829 and comprising approximately 31 . The genus is characterized by green coloration and distinctive wing venation patterns. The most widely known species is Hemithea aestivaria (Common Emerald), which has been extensively studied for its wing coloration mechanism involving the pigment geoverdin.
Pronunciation
How to pronounce Hemithea: /ˌhɛ.mɪˈθiː.ə/
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Identification
Males distinguished by palpi reaching just beyond the , ciliated , and hind tibia dilated with a fold containing a tuft of long hair. Females have longer palpi. Both sexes show tufts on three abdominal segments. Wing venation diagnostic: forewings with 3 from angle of , veins 7-10 stalked and vein 11 free; hindwings with angled outer margin at vein 4, veins 3-4 and 6-7 stalked.
Images
Distribution
occurs across Eurasia from western Europe to East Asia. Records confirmed from Denmark, Norway, and Sweden. Some introduced to North America.