Pending ID – Blattodea – Field Guide to the Insects of Tasmania

#1. Cockroach ootheca
Mid September 2011
Rocky Cape National Park

#2 Cockroach ootheca cemented onto Ghania grandis leaf.
Mid July 2018
Bridport

#2.1 Early October 2020
Bridport
Cemented onto an exterior wall.

#3. Mid September 2012
Rocky Cape National Park

#4. Early February 2012
Peter Murrell Reserve, Blackmans Bay
.

#5. Late December 2012
Strathgordon
On Nothofagus cunninghamii (Myrtle)

#6. Early January 2013
Sisters Beach
.

#7. Early January 2013
Sisters Beach

#8. Late March 2013. 0.7cm
Knocklofty Reserve, Hobart
Bottom two images are taken after an overnight moult.
Found under Eucalyptus delegatenis bark.
.
nest site

#9. Late March 2013. 0.7cm
Knocklofty Reserve, Hobart
Found under Eucalyptus delegatenis bark (above)

#9.1 Mid April 2019
Alum Cliffs Track, Mole Creek
Found on Eucalyptus bark
.

#10. Late November 2013
New Town Rivulet Reserve, Lenah Valley
.

#10.1 Early February 2018
The Big Bend track
Mount Wellington, kunanyi

#11
Late February 2014
Moving around in the open during the middle of the day.

#12
Early January 2015
Sisters Beach

#13. Early April 2015
Weilangta

#14. Maybe a Balta sp.???
Late December 2015
Sisters Beach
Attracted to light

different individual

#14.1. Mid April 2019
Cosy Corner, Bay of Fires
Found trapped upside down in the dew formed on a car. As soon as the cockroach was put onto a warm hand it became very lively, (too lively), but when returned to the cold car body it immediately stopped moving.
Eventually it was removed to a tree, where it immediately flew off.

#15 Mid March 2016
Denison Beach

#16 Mid July 2016
Close to Castra,
Under fallen timber

#16.1 Mid April 2019
Westmorland Falls track
Mole Creek

#16.2
Early November 2019
Don Reserve, Devonport

#16.3
Early July 2021
Bridport

#17 Early September 2016
The Domain Hobart

#18 Late November 2016
The Springs, Mount Wellington
Cockroach carrying ootheca

# 18.5. Late April 207
Lake St Clair

#19. Late April 2017
Lake St Clair National Park
Both of these individuals showed a defensive secretion accumulated on their cerci. This liquid is composed of sugars, lipids and amino acids, and may be a deterrent to predators (Rentz 2014)

..
Individual 2
.