Complex sentence: In "Apoica pallenss," queens and workers are usually about the same size, but queens tend to be smaller than workers anteriorly, but significantly larger posteriorly, creating morphologically different castes.
Split into simpler sentences: In "Apoica pallens" queens and workers are usually about the same size, but queens are sometimes slightly smaller. However, queens tend to be smaller than workers anteriorly, but significantly larger posteriorly, creating morphologically different castes.