Your are here:

spider beetle

Scientific Name
Ptinus exulans
Scientific Author
Erichson
Taxonomy
(Coleoptera: Anobiidae: Ptininae)
Status
Exotic Species Occurrence in Australia
Reliability
High
Download
PDF

Page menu options:

Diagnostic Images

Close
Caption
Source
Image Options
Close
Diagnostic Images (9)
Diagnostic Notes

Adult, 2-4.3 mm long, red-brown with yellow hairs; prothorax with dense cushion of pale hairs on each side; elytra with white scales; striae visible. The females are larger and more nearly globular than the males and unlike males have 2 white patches anteriorly and posteriorly on each elytron.

To distinguish the sexes: males have the elytra subparallel-sided, the eyes larger and more convex, the antennae longer (10th segment about five times as long as wide), the tufts of setae on the pronotal disc less defined, and the metasternum longer and convex. Females have the elytra subobovate,the eyes smaller and less convex, the antennae the eyes smaller and less convex, the antennae shorter (10th segment about twice as long as wide), the tufts of setae on the pronotal disc more defined, and the metasternum shorter and flat.

More Information
Specimen Contact
Museum Victoria
Author
Walker, K.
Created
16/03/2007 11:42 AEST
Last Updated
31/03/2007 07:42 AEST
Citation
Walker, K. (2007) spider beetle (Ptinus exulans) Updated on 3/31/2007 7:42:55 AM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License

Loading