Baclozygum depressum lives in south eastern Australia and is the only known Tasmanian species. It can damage the adult leaves of Eucalytptus globulus although is not recorded as a forestry pest. Eggs are laid within feeding scars caused by other chewing insects, such as the weevil Gonipterus, and also cracks in seed capsules and torn stems. They can also be found in between webbed or rolled leaves.
Male
Mid July 2009
Snug
Male on left, female on right
Late July 2012
Knocklofty Reserve, Hobart/nipaluna
The females have juga (forward cheek processes) with lateral margins more straight such that it’s widest around the middle, whereas the males get noticeably wider near the end. There is also some sexual dimorphism in colour.
Male lateral view
Female
Late June 2017
Knocklofty Reserve, Hobart
Late August 2010
Knocklofty Reserve, Hobart/nipaluna
These were found between two Eucalyptus leaves that had been stuck together. Adult female with nymph.
Eggs
Nymph
Late August 2013
Knocklofty Reserve, Hobart
The central and right photos show the shelter of joined leaves. The nymph is the small black dot on the right hand photo.
Late July 2019
Knocklofty Reserve, Hobart/nipaluna
Nymph free ranging on a fence
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Early June 2015
Knocklofty Reserve, Hobart/nipaluna
Nymph and eggs between webbed-together leaves
Knocklofty Reserve, Hobart/nipaluna
Knocklofty Reserve, Hobart/nipaluna
Late September 2020
Knocklofty Reserve, Hobart/nipaluna
Late August 2022
Knocklofty Reserve, Hobart/nipaluna
Hill, L. 1988. The identity and biology of Baclozygum depressum Bergoth (Hemiptera: Thaumastocoridae). Journal of the Australian Entomological Society 27: 37-42.