Order Diptera encompasses about 20,000 species across North America (not including Mexico). These mostly daytime flyers are a common sight during the long summer days across Tennessee on land and near bodies of water. Flies belong to this order and feature sucking mouthparts as well as a second set of full wings - the latter making them excellent flyers. The dreaded mosquito also belongs to the order and females of the species sport blood-sucking mouthparts. Beyond these two, Crane Flies, Gnats, and Bee Flies also belong to the group.
The Taxonomic Breakdown is the scientific way to categorize a partocular insect species from its largest group (Animalia) to its smallest (variable). The Genus and Species categorizations taken together make up the species' scientific name shown above, in this case Microchrysa polita.
Abdomen: Has a noticeably large / oversized abdomen.
Indoors: Can be found indoors; inside dwellings.
Outdoors: Typically found across the great outdoors.
Shiny: Has a noticeably shiny or reflective body surface.
Six-Legged: Six legs are common to this insect.
Small / Tiny: Noticeably small to the naked eye.
Winged: Has wings to hop or fly over distance.
The Black-horned Gem Fly has been identified by site users by the following descriptors:
small   winged   flying   agile   outdoors   indoors   six-legged   transparent   eyes   abdomen   green   grey   gray   black   red   maroon   metallic   shiny
The general likelihood of encountering this insect based on a given month of the year in the state of Tennessee. Generally, the best sighting months are June through August with peak occurring in July.
Below is a representation of the 'smallest-small' and 'largest-large' sizes commonly associated with the Black-horned Gem Fly. Due to monitor differences, sizes may not be exact on your particular screen. Conversions to millimeters are provided for convenience.
0.08 inches (2 mm)
0.20 inches (5 mm)
Below you will find the colors most commonly associated with the Black-horned Gem Fly. Both Primary and Secondary colors are represented in the showcase. Due to monitor differences, colors may not be exact representations.
The Black-horned Gem Fly can be found in the following Tennessee counties:
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