Mons Maenalus

Mons Maenalus was a constellation created by Johannes Hevelius in 1687. It was located between the constellations of Boötes and Virgo, and depicts a mountain in Greece that the herdsman is stepping upon. It was increasingly considered obsolete by the latter half of the 19th century.
File:Bootes - Prodromus astronomiae 1690.jpg|thumb|300px|Plate from Hevelius's Firmamentum Sobiescianum; Mons Mænalus is in the lower right, under Boötes. Note that the constellation figures on Hevelius’s atlas are reversed left to right, as on a celestial globe.

Stars

In Hevelius’s catalogue, the constellation was made from unformed stars in northern Virgo and southern Boötes, even extending into Serpens Caput. The brightest star, 109 Virginis is a blue star with an apparent magnitude of 3.72. Johann Bode shrunk the constellation, restricting it to southern Boötes. It wasn’t considered a separate constellation, but an asterism within Boötes. The new brightest star, 31 Boötis, was only of magnitude 4.86, which Bode designated with the letter z. Other stars were 14, 15, 18 Boötis.