@article{oai:soar-ir.repo.nii.ac.jp:00017182,
 author = {YAGI,  Nobumasa},
 journal = {Journal of the Shinshu University.},
 month = {May},
 note = {1. The compound eye of Hesperiidae was investigated from morphological 2nd functional point of view. 2. It seems to belong to the superposition eye but is modified into a special type of the superposition eye as an apposition type on the image formation. 3. The iris pigment cell and the secondary pigment cell are united forming a sheath of the cone and immobile under the dark or light environment. 4. The proximal cone end is protruded from the sheath about a third of it being sharply painted. 5. Guanin granuls are distributed on the surface of the cone in the vitrellae (matrix cell). This is a new case of guanin appearance in an animal tissue. 6. Guanin in the cone partakes the reflective function of rays as an iris pigment which lost its own function being deeply coloured. 7. Not all of the skippers have this reflective pigment but some have yellowish granules replacing the guanin function. This pigment will be xanthophore. 8. The retinula is transparent and elongated containing colourless nucleus proximally on the upper part of the tapetum. 9. The tapetum is hexagonally walled With numerous tracheoles which reflect the light. 10. The basal trachea is situated on the upper side of the basement membrane which is fenestrated for the passage of the nerve bundle from ommatidia. The occupation for the trachea is reversed to the case of the other insects. 11. The inner border of periopticon is pigmented deeply but lesser in the middle portion. 12. The image is formed at first in the cone reversely and at second erected in the middle of the retinula. This image is projected to the surface of the rhabdome in the tapetum whose diameter is just the same of the iris cell opening. 13. No superposition of image is occurs on a single rhabdome from numerous facets. 14. The eye of Hesperiidae is a apposition eye functionally though the structure is allied to the superposition type. So it may be called pseudosuperposition eye. 15. From the basis mentioned above the Hesperiidae had to be classified juto a special group of Lepidoptera. separating from butterflies and moths., Article, Journal of the Shinshu University. 3: 29-41(1953)},
 pages = {29--41},
 title = {STUDIES ON THE COMPOUND EYES OF LEPIDOPTERA: 2. On the Morphology and Function of the Compound Eyes of Hesperiidae},
 volume = {3},
 year = {1953}
}