Heredity and sex . Fig. 53. ^— Male (to left) with long eye stalks and female (to right) ofa fly, Achia longividens. (After Wood.) may be taken to score a point in favor of Darwinshypothesis. In the group of insects the most noticeable differencesoccur in the butterflies and moths, and in flies. Afew cases are found in the beetles and bugs. Themale cicadas shrill call is supposed to attract the

---

Size: 1501px × 1665px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjectsex, bookyear1913