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Insect Identification

Mydas Fly - (Mydas clavatus)

Authored By Staff Writer | Last Updated: 1/24/2014

The Mydas Fly does not turn anything to gold, but there are only a few types in North America, making it somewhat precious.

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This family of flies comprises some of the largest flies in North America. Some of the species can get as long as 60mm (2 inches). Mydas Flies are harmless despite sometimes being mistaken for wasps.

Females lay fertilized eggs in the ground. Larvae can be found in forests near rotting and dead wood. It eats other bugs and grubs that it finds in the dirt, including June Bug larvae. Eventually, they pupate in small chambers they create in the soil and emerge as flying adults.

Adults are seen in virtually everywhere (parks, garden, meadows, open lots, forests, etc.). They feed on other insects and caterpillars, including flies of other species. They are very good at flying, though it may not appear to be the case at first glance. They tend to look a bit clumsy in flight. They are most active in the summer months.

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Category: Fly
Common name: Mydas Fly
Scientific Name: Mydas clavatus

Taxonomy:
  Kingdom: Animalia
   Phylum: Arthropoda
    Class: Insecta
     Order: Diptera
      Family: Mydidae
       Genus: Mydas
        Species: clavatus

Adult Size (Length): 25mm to 38mm (0.98in to 1.50in) COMPARE

Identifying Colors: black; yellow; orange; red

General Description: large, knobs, flying, large


North American Reach (Though Not Limited To*): Alabama; Alaska; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Hawaii; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming; Alberta; British Columbia; Manitoba; New Brunswick; Newfoundland and Labrador; Nova Scotia; Ontario; Prince Edward Island; Quebec; Saskatchewan; Mexico


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


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