[1] : The Collaborative International Dictionary of English v.0.48

larval \lar"val\ laumr"val, a. l. larvalis ghostly. see
   larva. zool.
   of or pertaining to a larva.
   1913 webster
see also:
larva 

[2] : WordNet (r) 2.0

larval
     adj 1: immature of its kind; especially being or characteristic of
            immature insects in the newly hatched wormlike feeding
            stage; "larval societies"; "larval crayfishes"; "the
            larval stage"
     2: relating to or typical of a larva; "the larval eye"

Larval >> L Words
Larval, definition of term: Larval
larval_pag1.html

Larval Stage >> L Words
Larval Stage, definition of term: Larval Stage
larval+stage_pag1.html