
In average, a horsefly can measure up to about 35.5 millimeters long, while a no-see-um only measures from about 1 to 4 millimeters long. Sand gnats vary widely on size, depending on the species of the insect.

They also carry a disease called leishmaniasis, which is a parasitic disease that causes infection on the skin. When they bite, they leave red bumps on the skin, like a mosquito bite. Therefore, if a person complains about sand gnats, he may be referring to horseflies or no-see-ums. The term “sand gnat” is a general term given to numerous blood-sucking dipteran insects that are found in sandy areas, such as those in Arizona, Florida and Georgia. When full grown, it can measure from about 1.5 to 5 millimeters long.

It is typically harmless, but can be very annoying in large groups. This type of gnat resides in drainage and sewer systems. It is also called the moth fly because of its hairy body and wings. The drain gnat (scientific name Clogmia albipunctata) is an insect commonly found in places with a humid weather. It might be small, but it can withstand extremely cold temperatures because of the antifreeze protein that its body has.

It normally walks on the soil and the surface of plant leaves in order to move around.Īs an adult, the fungus gnat can grow up to 2 to 5 millimeters long. Though it is a winged insect, it is a weak flier. The fungus gnat (scientific name Exchechia nugatoria) is a tiny fly that feed on plant roots and fungi. Some of the most common types of gnats include the fungus gnat, the drain gnat, the sand gnat, the fruit gnat, and the bull gnat. There are different types of gnats that infest our homes and neighborhoods.
