- Sun Jun 20, 2021 11:43 pm
In addition, line 58, "[t]hose eggs formed in autumn are exposed to cold winter temperatures, and thus produce micropterous adults in the summer generation." I tend to think "eggs formed" has the same meaning as "eggs laid," which is about the water bugs' reproduction.
The passage has previously laid out two generations: (1) summer generation reproduce during the summer; and (2) overwintering generation reproduce in early spring. So it seems that this sentence refers to the summer generation's reproduction, which was somehow delayed to autumn, which develops into the overwintering generation and unfortunately are micropterous due to the cold winter temperatures, therefore unlikely to survive through the winter.
But my confusion is that this somehow contradicts line 22, "[t]he first hatches during the spring, reproduces during the summer, then dies." So it sounds unlikely that the summer generation would live through autumn.
Note also that the two generations might not be equal in terms of their life span. The passage makes it clear that the summer generation lives roughly half a year, yet no mentioning how long the overwintering generation would live.
Lastly, line 61 states, "[t]hose formed during the spring are never exposed to cold temperatures, and thus yield individuals with normal wings." First of all, I thought the eggs formed during the spring develop into the summer generation and such eggs WERE exposed to cold temperatures, in contrast with the eggs laid/formed in summer, which were exposed to warm temperatures. Secondly, these individuals exhibit dimorphism, not with normal wings.
This is a very confusing passage. Thanks!