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  • Robberfly - (Promachus hinei)

    Robberfly - (Promachus hinei)

    The Robberflies from the genus Promachus are quite loud, but they are very effective hunters.

    Staff Writer (8/24/2017): Robberflies eat all sorts of other flies as well as bees, wasps, beetles and butterflies. If it flies and they can catch it, it becomes dinner. If the Robberfly spies a resting insect and can catch it, it becomes dinner. Robberflies are efficient predators with a big appetite for bugs.

    During the day, they hang from branches or objects near the ground, waiting to ambush passing prey. They chase them in flight, overtake them, and grab them with their legs. Once captured, the robber fly will stop at a branch or leaf and use its stiff mouth to pierce the body of its victim and then suck out the victim's insides.

    Robberflies are fast and loud. It is typical to hear one before actually seeing it. This particular species likes to perch on vertical twigs and branches. Their larvae also eat insects on the ground.

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    Details of the:

    Category: Fly or Mosquito
    Common name: Robberfly
    Scientific Name: Promachus hinei

      Kingdom: Animalia
       Phylum: Arthropoda
        Class: Insecta
         Order: Diptera
          Family: Asilidae
           Genus: Promachus
            Species: hinei

    Size (Adult, Length): 18mm to 40mm (0.71in to 1.57in)

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

    Additional Descriptors: loud, buzzing, fast, hairy, flying

    North American Reach (Though Not Limited To*): Alabama; Alaska; Arizona; Arkansas; 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; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; West Virginia; Wisconsin; Wyoming; country of 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.

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