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Warehouse beetle

Scientific Name
Trogoderma variabile
Scientific Author
Ballion,
Taxonomy
(Coleoptera: Dermestidae: Megatominae)
Status
Exotic Species Occurrence in Australia
Reliability
High
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Diagnostic Images (12)
Other Images (5)
Diagnostic Notes

Live Adult and larvae footage: Click – One Two Three

 

Live Larval footage: Click One Two Three

 

 

Adult beetle is oblong to oval in shape c. 2.6-4.6mm in body length, head and pronotum dark red coloured, elytra with light brown and dark brown to black striations running across the body. Larvae 3-6.5mm long, light yellow-brown in colour and have arrow shaped hair dorsally as well as several bristle setae extending 3-4mm from the end of the abdomen.

Generic separation of various Derrmestid adult and larvae.

Adults

1. Medium ocellus absent - Dermestes
    Medium ocellus present - Go to 2.

2. Body covered with colourful scales - Anthrenus
    Body covered with hairs not scales - Go to 3.

3. First segment of hind tarsi half or less the length    of second segment - Attagenus
   First segment of hind tarsi as long or longer than second segment - Go to 4.

4. No distinct antennal club, all segments gradually enlarging from base to apex - Trogoderma
   Distinct 3 segmented club, these segments considerably larger than remaining segments - Anthrenocerus

Larvae

1.  Ninth abdominal segment with horn-like structures - Dermestes
    Ninth segment without horn-like structures - Go to 2.

2.  Dorsal surface without barbed arrow-shaped setae - Attagenus
    Dorsal surface with barbed arrow-shaped setae - Go to 3.

3.  Tufts of barbed setae do not overlap along the midline - Trogoderma & Anthrenocerus
    Tufts of barbed setae overlap on midline - Anthrenus

Source: See Rees (2004) in references



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