Intraspecific mimicry

...In addition, examples of butterflies and fish that have eye-shaped patterns on parts of their bodies to scare off predators or to focus the enemy's attack on the false eyes so that they can escape can also be considered signal mimicry in a broad sense.
[Intraspecific mimicry]
Both cryptic and signaling mimicry are effective against other species, but they are distinguished by intraspecific mimicry, which is effective against the same species. A famous example is the egg pattern on the pelvic fins of the male mouse breeder of the cichlid family. The female mistakes the egg for a real egg and tries to suck it in, and the male ejaculates at the same time, resulting in fertilization of the egg in her mouth.

*Some of the terminology explanations that mention "intraspecific mimicry" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…またチョウや魚などが体の一部に目玉模様(眼状紋)をもち，外敵をおどかしたり，敵の攻撃目標をにせの目玉に集中させて逃げる例も，広い意味での標識的擬態とみなすことができる。
［種内擬態intraspecific mimicry］
　隠蔽的擬態も標識的擬態も，自分とは別の種に対して効果をもつものであるが，自分と同じ種に対して効果を及ぼすものをとくに種内擬態と呼んで区別する。シクリッド科のマウスブリーダーの雄の腹びれの卵模様は有名な例で，雌は本物の卵とまちがえて吸いこもうとし，これに合わせて雄が射精することによって口中の卵の受精が成立する。…

※「intraspecific mimicry」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報