The familiar scorpion family enemies from Phantasy Star returned in Phantasy Star Gaiden, one of many foes that strengthens the connection of this side story to the original title in the series. This particular artwork from the manual is labeled スコーピラス, which roughly translates as Scorpirus. That's fairly close to the name used in the original game, as well. The manual describes the creature as a mutant scorpion, which might explain the wings.
Happy 27th Anniversary Fringes Of Algo ~ Founded April 01, 1997 ~
"For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life." John 3:16