larva experimental gismu

x1 is an organism x2 at its larva stage of development

See also sovda, altrici, inmago

In definition:

cifsfani
c1=s1 is a maggot/fly larva of species/breed c2=s2
ciftoldi
x1 is a caterpillar (larva of butterfly or moth - not sawfly) of species x2.

In notes:

inmago
x1 is an organism x2 at its imago stage of development