The compound eye of the butterfly Papilio xuthus is composed of three types of spectrally
heterogeneous ommatidia. The ommatidia, which contain nine photoreceptor cells, R1–9 …

The eye of the butterfly Papilio xuthus contains a random array of three types of ommatidia
(types I–III), each bearing nine photoreceptors, R1–R9. Of the six spectral classes of …

The butterfly Papilio xuthus has compound eyes with three types of ommatidia. Each type
houses nine spectrally heterogeneous photoreceptors (R1–R9) that are divided into six …

The first optic neuropil of the compound eye, the lamina, of the skipper butterfly Parnara
guttata, was examined by light microscopy after Golgi‐impregnation and by electron …

The compound eye of the butterfly Papilio xuthus consists of three different types of
ommatidia, each containing nine photoreceptor cells (R1–R9). We have found previously …

Profiles of the axonal endings of seven retinular cells (R1–7) from each of six stemmata (I–
VI) of the butterfly Papilio xuthus were examined. Their axons enter the brain anteroventrally …

The butterfly Papilio xuthus has acute tetrachromatic color vision. Its eyes are furnished with
eight spectral classes of photoreceptors, situated in three types of ommatidia, randomly …

This review outlines our recent studies on the spectral organization of butterfly compound
eyes, with emphasis on the Japanese yellow swallowtail butterfly, Papilio xuthus, which is …

The ommatidia of the butterfly Papilio have a fused and tiered rhabdom. The distal tier of the
rhabdom is made up of four distal photoreceptors (R1–4), whereas the proximal tier is made …

The compound eye of Pieris rapae crucivora contains ventrally three types of histologically
distinct ommatidia. An ommatidium contains nine photoreceptors, four of which (R1–4) …