• Spiders
  • Beetles
  • Bees & Ants
  • Butterflies & Moths
  • Grasshoppers & Crickets
  • Dragonflies & Damselflies
  • True Bugs
  • Insects By State
  • Forbes' Silk Moth - (Rothschilida forbesi)

    Forbes' Silk Moth - (Rothschilida forbesi)

    The nocturnal Forbes' Silk Moth is a sight to behold thanks to its late-night activity, large wingspan, handsome pattern, and small range.

    Picture of Forbes' Silk Moth
    Staff Writer (8/7/2017): Forbes' Silk Moth is a part of the Saturniidae family hosting some of the largest moths in North America. This species has a limited range, despite its grand size and has only been seen in southern Texas and Mexico. Its rounded wings have four large transparent spots on them, two on each side. For this reason, its Spanish name is Cuatro Espejos meaning "four mirrors". The dark brown interior of the wings is bordered with a light brown and edged with a creamy white rim. They rest with wings flat.

    Caterpillars are white, black, and yellow. White fleshy bodies have thick black bands studded with yellow bumps topped with spiky hairs. After feeding on leaves of ash and willow trees, they pupate and become winged adults. Two generations a year are produced with adults on wing in early spring and again in mid-autumn.

    ©2005-2017 www.InsectIdentification.org. All Rights Reserved. No Reproduction Permitted. Unauthorized use and/or duplication of this material without express and written permission from www.InsectIdentification.org is strictly prohibited. Material presented throughout this website is for entertainment value and should not to be construed as usable for scientific research or medical advice (insect bites, etc...). Please consult licensed, degreed professionals for such information. Email corrections / Comments to InsectIdentification at Gmail dot com.

    Details of the:
    Forbes' Silk Moth

    Category: Butterfly or Moth
    Common name: Forbes' Silk Moth
    Scientific Name: Rothschilida forbesi
    Other Names: Cuatro Espejos

      Kingdom: Animalia
       Phylum: Arthropoda
        Class: Insecta
         Order: Lepidoptera
          Family: Saturniidae
           Genus: Rothschilida
            Species: forbesi

    Size (Adult, Length): 110mm to 125mm (4.33in to 4.92in)

    Identifying Colors: brown, white, red, orange, black

    Additional Descriptors: four, spots, marks, night, nocturnal, rounded, flying, large, big

    North American Reach (Though Not Limited To*): Texas; Mexico

    * Keep in mind that an insect's reach is not limited by lines on a map and therefore may appear in areas/regions/states beyond those listed above.

    BUGFINDER: What Kind of Bug is This...
    BUGFINDER allows for a quick search of the Insect Identification database by selecting primary color, secondary color, number of legs and the territory / state in question. If only one color is present on your insect, select it again as its SECONDARY color. Remember that the more details you can offer, the better your chances of finding a match. As a rule of thumb, six legs are typical for most insects whereas spiders generally have eight legs.
    Primary Color:
    Secondary Color:
    Number of Legs:
    State / Province:
    General Category: