''Labiobaetis soldani'' is a species of

mayfly Mayflies (also known as shadflies or fishflies in Canada and the upper Midwestern United States, as Canadian soldiers in the American Great Lakes region, and as up-winged flies in the United Kingdom) are aquatic insects belonging to the orde ...

found in the Tirunelveli district of

India India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...

. The species was named after Dr. T. Soldan. The larvae were collected in a slow-flowing

perennial stream A stream is a continuous body of surface water flowing within the bed and banks of a channel. Depending on its location or certain characteristics, a stream may be referred to by a variety of local or regional names. Long, large stream ...

. Larvae were light brown in coloration with yellow antennae and gills on abdominal segments 1-7. Male larvae measured 4 millimeters while female larvae measured 4.8 millimeters. Male

imago In biology, the imago (Latin for "image") is the last stage an insect attains during its metamorphosis, its process of growth and development; it is also called the ''imaginal'' stage ("imaginal" being "imago" in adjective form), the stage in wh ...

es were 5.2 millimeters, while females measured 5.0 millimeters. Both sexes had transparent forewings 3.5 millimeters long and no hind wings. Head and

thorax The thorax (: thoraces or thoraxes) or chest is a part of the anatomy of mammals and other tetrapod animals located between the neck and the abdomen. In insects, crustaceans, and the extinct trilobites, the thorax is one of the three main di ...

were dark brown, with yellow legs. Males' abdomens were reddish brown or white, while females' were brown.

References

Mayflies Insects of India Fauna of Tamil Nadu Insects described in 2014 Endemic fauna of the Western Ghats {{mayfly-stub