[昆]Y腺
When the larva is disturbed, it can protrude the forked scent gland, or osmeterium, and release a disagreeable odor.
幼虫昼夜均可取食,受惊动时可从前胸背板前缘伸出臭丫腺,放出臭味。
osmeterium:臭角
胡爪鱼总科 OSMEROIDEA | 臭角 osmeterium | 锇酸 osmic acid