possible Red Triangle Slug tracks on tree trunk
Help needed to ID the insect that made these markings...unlike the scribbly gum moth larvae (it feeds on photosynthetic tissue just below the epidermal cells in the tree trunk) whatever made these markings appears to have 'fed' on the outer surface of this plunkett mallee.
Update 7th November 2014: I stumbled upon the 'Radula track' Group and found similar markings. Further Googling resulted in my believing these marks may be from the Red Triangle Slug or something similar.
possible Red Triangle Slug tracks on tree trunk
Help needed to ID the insect that made these markings...unlike the scribbly gum moth larvae (it feeds on photosynthetic tissue just below the epidermal cells in the tree trunk) whatever made these markings appears to have 'fed' on the outer surface of this plunkett mallee.
Update 7th November 2014: I stumbled upon the 'Radula track' Group and found similar markings. Further Googling resulted in my believing these marks may be from the Red Triangle Slug or something similar.