Fig. 1.

Egg lengths within and among Drosophila species. Average egg lengths (in μm; ±1 SD) for representatives of the D. melanogaster species subgroup, with multiple stocks from D. melanogaster, D. mauritiana (D. maur), D. simulans, and D. sechellia (D. sech). Images are representative eggs photographed at the same magnification and can be directly compared with one another. Measurement error is small compared with the length differences between sampled eggs. All strains were grown under the same conditions, and eggs were collected with the same protocol.