ˌpallidi- combining stem of L. pallid-us pale, used in some terms of Nat.Hist., as pallidiˈflorousa., pale-flowered. pallidiˈpalpatea., having pale palpi. pallidiˈtarsatea., having pale tarsi. pallidiˈventratea., having a pale abdomen. 1857in Mayne Expos.Lex.