About Eristalis bellardii Jaennicke, 1867
Eristalis bellardii Jaennicke, 1867 is a species of hoverfly in the Diptera order; its morphological description is given below. The head is black, with the face sometimes reddish brown along the sides. The face is covered in yellowish-white pollen, except for a shiny central stripe that extends nearly to the antennae. The gena is shiny and bears pale yellow pile. The frontal lunule is reddish brown. The antenna has a bare arista. The eye pile is brownish yellow, but white on the ventral side. Male eyes touch along the center, while female eyes are separate. The thorax is black and covered in yellow pile, with the exception of the central part of the scutellum, which has black pile over a reddish-brown base. The wings are hyaline, and have a yellow pilose tegula. For the abdomen: the first tergum is black. The second tergum is dull, with orange coloring on the lateral two-thirds and black coloring on the medial one-third. The third tergum is similar to the second tergum in males, but in females the orange lateral region is only about one-third the width of the tergum. In males, the fourth tergum has orange coloring on the lateral one-third, but in females the fourth tergum is entirely black. Illustrations of the genitalia can be found as Figure #9 at https://www.biodiversitylibrary.org/item/54855#page/228/mode/1up. The larval form of Eristalis bellardii is currently unknown.
