Mealworm beetle — size comparison

The adult mealworm beetle is dark brown or black, with an elongated body and grooved wing cases. Its yellowish larvae are more often recognised than the adult i

Silhouette comparison

Length

od przodu głowy do końca odwłoka · bez czułków, nóg i wystających skrzydełScale for the stated dimensions · each animal is labelled

Mealworm beetle

Tenebrio molitor

15 mmAdult individual · płeć nieokreślona
Body length

od przodu głowy do końca odwłoka · bez czułków, nóg i wystających skrzydełMeasurement: side

The stated dimensions share a scale without a common ground line. Bank card · long edge 8.56 cm
Measurement comparisonScale in cm
0246810
Mealworm beetleBody length15 mm
Bank cardLong edge of the card8.56 cm

The scale compares the named dimensions. View direction and measurement points are given for each animal.

Scale based on the stated dimensions for each animal

Bank card · long edge 8.56 cm
Mealworm beetle — size comparison — facts and sources

The adult mealworm beetle is dark brown or black, with an elongated body and grooved wing cases. Its yellowish larvae are more often recognised than the adult itself. The species inhabits warehouses, cellars and pantries but may also live in forest environments containing suitable organic remains.

Larvae and adults are omnivorous. They use dead plant and animal matter, grain and other dry products. Activity in buildings may continue throughout the year.

The species also played a role in the history of science: Nettie Stevens' studies of its chromosomes helped explain the mechanism of sex determination.

Measurement sources