You know what it looks like… but what is it called?
TAKE THE QUIZ“seed-corn”
The following 2 entries include the term seed-corn.
seed-corn beetle
noun: a carabid beetle (Agonoderus lecontei) that often feeds on corn seed in the ground
seed-corn maggot
noun: a small yellowish grub with a pointed head that is the larva of a grayish brown two-winged fly (Hylemya platura), is native to Europe but now widely distributed in North America, and is typically a destructive borer in seeds and seedlings (as of Indian corn, beans, or melons) but sometimes attacks stems or roots of older plants
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Merriam-Webster unabridged