. Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California . m FIG. 7. Ocelli and compound eyes of a fly {Phormia regina). A, male; B, female. are double, and we have post-gense. On the under side of the head isthe gula, to which the lower lip or labium is attached. The externaltop of the head, in contact with the prothorax, is the occiput. Theprincipal organs of the head are the eyes, the mouth, and the antenna?. Eyes —In the perfect insect there is a pair of compound are usually very prominent and highly faceted. In some


. Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California . m FIG. 7. Ocelli and compound eyes of a fly {Phormia regina). A, male; B, female. are double, and we have post-gense. On the under side of the head isthe gula, to which the lower lip or labium is attached. The externaltop of the head, in contact with the prothorax, is the occiput. Theprincipal organs of the head are the eyes, the mouth, and the antenna?. Eyes —In the perfect insect there is a pair of compound are usually very prominent and highly faceted. In some insects, ENTOMOLOGY IN OUTLINE — STRUCTURE OP INSECTS. 47 as the dragon-fly, the house-fly, and others, they form the greater partof the head. The eye of an insect is immovable, fast in its socket. Itis hemispherical or curvilinear in form, and covered with facets or flatsurfaces. They are called compound eyes, and are of many colors—blue,black, emerald green, or deep golden, as in the lace-winged fly. Really,


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Keywords: ., bookauthorcaliforn, bookcentury1800, bookdecade1850, bookyear1853