Cartodere

C.G. Thomson, 1859

Species Guides

4

Cartodere is a of minute brown scavenger beetles in the Latridiidae. in this genus are characterized by distinctive morphological features including deeply incised pronotum margins and large with over 70 . The genus has a distribution and occurs in both natural and human-associated environments such as stored grain products.

Cartodere by (c) Donald Hobern, some rights reserved (CC BY). Used under a CC-BY license.Cartodere by (c) Emil Jantke, some rights reserved (CC BY), uploaded by Emil Jantke. Used under a CC-BY license.Cartodere by (c) Paul Cook, some rights reserved (CC BY), uploaded by Paul Cook. Used under a CC-BY license.

Pronunciation

How to pronounce Cartodere: //kɑr.toʊˈdɛr.i//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Distinguished from other Latridiidae by the combination of deeply incised pronotum margins, large with over 70 , and with eight or fewer rows of punctate . The separated procoxae via a prosternal process provides additional diagnostic value.

Images

Appearance

Small beetles with deeply incised margins on the pronotum. are large, each containing more than 70 . bear eight or fewer rows of punctate . Procoxae are separated by a distinct prosternal process.

Habitat

In natural environments, found in herbaceous vegetation, straw, grass, mouldy bark, hay, wood, moss, compost, and animal nests. occur in stored food products in houses, grain elevators, and feed mills.

Distribution

; recorded from Denmark, Norway, Sweden, and worldwide.

Diet

Larvae and feed on mould growing on dead organic material.

Host Associations

  • Tarsonemus ascitus - phoretic female mites attach primarily to lateral and undersides of the prothorax

Behavior

Serves as a phoretic for mites; specifically documented as a carrier for Tarsonemus ascitus with mites showing preference for attachment sites on the prothorax.

Ecological Role

Decomposer; feeds on mould in decaying organic matter, contributing to nutrient cycling in both natural and stored product environments.

Human Relevance

Occasional pest of stored grain products; presence in grain elevators and feed mills may indicate mould . Documented as a for phoretic mites that may have implications for grain storage .

More Details

Phoretic mite spatial distribution

On Cartodere constricta, phoretic Tarsonemus ascitus mites exhibit a negative binomial spatial distribution, with mean mite counts consistently lower than variance. This pattern has been used to calculate needed for reliable mite estimates.

Sources and further reading