Dickson Chemical Logo
Home Products Insects Pictures Links Email




Ptinus tectus Boield.
Australian Spider Beetle



Appearance:

An oval beetle of 2.5-4 mm length, sharply waisted between neck shield and abdomen; dark brown, with flat-lying yellowish-brown hairs; the wing covers have fine lines of dots and no patches. The larvae are yellowish-white, grub-like, have a brown head and sparse hair growth, and grow to 5-7 mm length.


Life History:

After shedding 3 skins, the larva pupates, usually in a self-spun cocoon. One can expect 2 or 3 generations per year, depending upon whether rooms are unheated or heated. The pest survives the winter in all stages of development.


Distribution:

Originally only found in Australia, now practically world-wide.


Damage:

The beetles and larvae are omnivorous and attack grain and grain products, pulses, rice, dried fruit, cocoa, spices, herbs, hervs and animal products such as fish meal and casein.

Mission | Values | Contact Us
Copyright © 2008 Dickson Chemical Co., Inc. All Rights Reserved.