Figure 341 from Chapter 14 (Sperm Flagellum) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Cross sections of spermatozoa in the testis of a moth. The flagellar membrane of many Lepidoptran spermatoz...

The high wing beat frequency in insects is intense muscle work, and dependent on a ready supply of ATP. This micrograph of flight muscle from the moth, Phytometra gamma shows the physical relationship...

Photomicrograph of the base of a silkworm caterpillar's proleg. Prolegs are short, stubby auxiliary structures found on the underside of the abdomen of most larval forms of insects of the order Lepido...