Geometrinae -​ North American Emerald Moths of the US and Canada
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Nemoria arizonaria (Grote, 1883). [7020 & 7021]
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Nemoria arizonaria, adult female, summer (aemularia) form. Specimen collected Copper Canyon, Cochise Co. AZ, August, 2005.
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Nemoria arizonaria, same specimen as live moth above at left.
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Nemoria arizonaria, adult male. Note red coloration along forewing costa and white abdominal spots surrounded by rose-red encircling. Specimen reared ex ovum on oak; parent female collected Carr Canyon, Cochise Co., AZ July 2015.
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Nemoria arizonaria is typically found only in canyon habitats at elevations between 4,000 and 8,000 feet. The species is known from Arizona, New Mexico, and the Davis Mountains of Texas, although the summer form of Nemoria arizonaria (pictured above) has only been found in Arizona.

Nemoria arizonaria has two different seasonal forms. Initial collections described the summer seasonal form with unmarked white costa as a unique species named Nemoria aemularia (see photo above). Noel McFarland, however showed that N. aemularia adults could be reared from arizonaria eggs thereby providing the evidence that they were actually the same moth, occurring in substantially different forms. This phenomenon is called seasonal dimorphism, and represents an interesting form of polyphenism in the group.

Nemoria arizonaria is a yellow-green moth with a typically wide post-medial line. This line is not very clearly defined, however, it is one of the broadest lines among N. American Nemoria species. There also may be a very thin terminal line on the wing, which is usually yellow with some red markings between veins; the wings having a white fringe. The most notable difference between the winter-early spring form and the summer form is found in the purple red markings on the costa of the forewing. Markings on the abdomen also may differ substantially; the summer form has reddish brown markings on the first few segments for the males, and the females have no green on the abdomen and just pale red markings. (S. Bach contributing)
For images of Nemoria arizonaria larvae, click here. 

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Nemoria arizonaria, adult female, spring form, collection of the National Museum of Natural History (Smithsonian).
Note the rose colored forewing costa and yellow hindwing margin on the spring specimen above. Male specimens (and occasionally females) may have small distinct white spots on the abdomen. At right are shown the varied abdominal markings of three females of summer form Nemoria arizonaria; these show reduced white spots on a red-brown background on one or more segments, or (in the middle specimen), a reduction of the white spots to complete absence, with or without a residual dark purple brown circle. All three of the specimens at right collected in the Huachuca Mountains, Cochise Co., AZ August 2005.
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Nemoria arizonaria, reared ex ovum on oak, parent female collected Carr Canyon, Cochise Co. AZ, July 2015.
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  • Home
  • Geometrine Species
    • Chlorosea >
      • Chlorosea banksaria
      • Chlorosea margaretaria
      • Chlorosea roseitacta
    • Nemoria >
      • Nemoria mimosaria
      • Nemoria bistriaria >
        • Nemoria bistriaria larvae
      • Nemoria rubrifrontaria >
        • Nemoria rubrifrontaria larvae
      • Nemoria elfa >
        • Nemoria elfa larvae
      • Nemoria tuscarora >
        • Nemoria tuscarora larvae
      • Nemoria lixaria >
        • Nemoria lixaria larvae
      • Nemoria bifilata >
        • Nemoria bifilata larvae
      • Nemoria catachloa >
        • Nemoria catachloa larvae
      • Nemoria outina >
        • Nemoria outina larvae
      • Nemoria saturiba >
        • Nemoria saturiba larvae
      • Nemoria arizonaria >
        • Nemoria arizonaria larvae
      • Nemoria darwiniata >
        • Nemoria darwiniata larvae
      • Nemoria unitaria >
        • Nemoria unitaria larvae
      • Nemoria pulcherrima >
        • Nemoria pulcherrima larvae
      • Nemoria mutaticolor
      • Nemoria daedalea
      • Nemoria diamesa
      • Nemoria latirosaria
      • Nemoria viridicaria
      • Nemoria subsequens
      • Nemoria albaria
      • Nemoria pistaciaria
      • Nemoria extremaria
      • Nemoria zelotes
      • Nemoria obliqua >
        • Nemoria obliqua larvae
      • Nemoria splendidaria
      • Nemoria zygotaria >
        • Nemoria zygotaria larvae
      • Nemoria intensaria
      • Nemoria leptalea
      • Nemoria caerulescens >
        • Nemoria caerulescens larvae
      • Nemoria strigataria >
        • Nemoria strigataria larvae
      • Nemoria festaria >
        • Nemoria festaria larvae
      • Nemoria albilineata >
        • Nemoria albilineata larvae
      • Nemoria glaucomarginaria >
        • Nemoria glaucomarginaria larvae
      • Nemoria rindgei
    • Dichorda >
      • Dichorda iridaria >
        • Dichorda iridaria larvae
      • Dichorda consequaria
      • Dichorda illustraria >
        • DIchorda illustraria larvae
      • Dichorda rectaria >
        • Dichorda rectaria larvae
    • Dichordophora >
      • Dichordophora phoenix
    • Synchlora >
      • Synchlora cupedinaria
      • Synchlora aerata >
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      • Synchlora frondaria >
        • Synchlora frondaria larvae
      • Synchlora xysteraria
      • Synchlora herbaria
      • Synchlora noel
      • Synchlora gerularia
      • Synchlora irregularia
      • Synchlora bistriaria
      • Synchlora pectinaria
      • Synchlora faseolaria
      • Synchlora graefiaria
    • Phrudocentra >
      • Phrudocentra centrifugaria
    • Lophochorista >
      • Lophochorista lesteraria
    • Xerochlora >
      • Xerochlora mesotheides
      • Xerochlora viridipallens
      • Xerochlora inveterascaria
      • Xerochlora martinaria
      • Xerochlora masonaria
    • Eueana >
      • Eueana niveociliaria
    • Chlorochlamys >
      • Chlorochlamys chloroleucaria >
        • Chlorochlamys chloroleucaria larvae
      • Chlorochlamys triangularis
      • Chlorochlamys appellaria >
        • Chlorochlamys appellaria larvae
        • Chlorochlamys appellaria genitalia
      • Chlorochlamys phyllinaria
    • Chloropteryx >
      • Chloropteryx tepperaria
      • Chloropteryx nordicaria
      • Chloropteryx paularia
    • Hemithea >
      • Hemithea aestivaria
    • Thalera >
      • Thalera pistasciaria >
        • Thalera pistasciaria larvae
    • Mesothea >
      • Mesothea incertata
  • Other Subfamilies
    • Archiearis infans
    • Campaea perlata
    • Caripeta
    • Eriplatymetra
    • Philtraea
    • Eulithis
    • Hydriomena
    • Stamnodes
    • Cyclophora pendulinaria
  • Immature Stages
  • FCS Research
    • Alypiodes
    • Callidulidae
    • GSENM Research
  • Contact