A light-perceptive organ consisting of an aggregation of optic elements (ommatidia) generally located on each side of the head. In adult mosquitoes, convex, kidney-shaped and occupying much of the anterolateral surface of the head. Apparently rarely functional in endopterygotous larvae. In mosquito larvae, apparently present in a developing state during all instars; becoming prominently pigmented and perhaps functional in older larvae. In mosquito pupae, present in a developing state; perhaps functional.
General: compound eye