EGL (Elegant Gothic Lolita) and EGA (Elegant Gothic Aristocrat) are terms coined by Mana, previously of the Japanese Visual band Malice Mizer.
Elegant Gothic Lolita refers to the fashion of frilly, ruffled knee-length dresses, and ruffled headbands, and only refers to females.
Elegant Gothic Aristocrat refers to a more subdued, refined dressing, usually consisting of longer dresses or coats, and can refer to both females and males.
There are different kinds of groups of lolitas in Japan, however EGA is rare and the style is usually up to the individual.
Gothic Lolita - Mana (Ex-Malice Mizer), Dada (Ex-Velvet Eden)