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ACE Prep FreeStudy guide, 277 practice questions, flashcards and a speed round.Recruit0 XP · Agent file
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Pest ID library

Stored product and fabric pests

Grain beetles, dermestids and the pantry lineup.

ID notes from the crew

  • Sawtoothed vs. merchant grain beetle2025–26

    Told apart by temple length. Sawtoothed doesn’t fly or come to light and lives up to a year; merchant flies, is drawn to light and prefers cereals.

    Confirmed in the LTK Discord · LTK member

  • Dermestid larvae2025–26

    Attagenus: long, slender, tail tuft (mistaken for silverfish). Dermestes: urogomphi. Anthrenus: V-shaped tuft. Trogoderma: the warehouse beetle.

    Confirmed in the LTK Discord · #the-hive-mind

  • Cigarette vs. drugstore beetle2025–26

    Cigarette beetle antennae are serrated; drugstore beetle antennae are clubbed. Don’t trust stock-photo IDs — even an industry body once ran a mislabelled one.

    Confirmed in the LTK Discord · #the-hive-mind

From the field

21 photos posted by members. Tip: Always include a coin or a hand for scale, and freeze a specimen for a clear shot.

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Field guideCommercial and food safetyStudy module 10Stored Product Pests

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