optic lobe and Bolwig's organ precursor formation, optic lobe placode formation
Alternate IDs
GO:0007457
Definition
Establishment of the optic lobe placode. In Drosophila, for example, the placode appears in the dorsolateral region of the head in late stage 11 embryos and is the precursor to the larval visual system.
Source:
GOC:mtg_sensu,
PMID:8402833