About Balta bicolor Hebard, 1943
Balta bicolor (described by Hebard in 1943) has a relatively pale face, occiput, and interocular area, and dark antennae. It is visually similar to cockroaches of the genus Ellipsidion. It can be distinguished from the species Balta transversa by its deeper head proportions. This species is native to eastern Australia. In 2009, Biosecurity New Zealand first identified the species in New Zealand (misspelled as Balta bicolour at the time) after it was found in an Auckland kitchen. Balta bicolor is typically found in plant litter or under bark.