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trogoderma dermestid beetle

Scientific Name
Trogoderma sternale
Scientific Author
Jayne, 1882
Taxonomy
(Coleoptera: Dermestidae: Megatominae)
Status
Exotic species - absent from Australia
Reliability
High
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Diagnostic Images (6)
Diagnostic Notes

Adult body length 1.9-3.4mm; elytra  banding variable, in some with translucent areas forming 3 bands, light coloured patterns extens to base of elytra, inner margin of eye straight or very slightly curved, antennal club of male serrate and 8 segmented, of female club 5 segmented antennal cavities almost smooth and shining.

Source:

See Banks (1994) references

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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