Abdomen beneath yellow, each segment margined with brown, the pygidium yellow, with two largish oblique black spots.
"Discoveries in Australia, Volume 1." by J Lort Stokes
The relation in size between the flea and its pygidium.
"Scientific American Supplement, Vol. XIX, No. 470, Jan. 3, 1885" by Various
Median notch: in Coccidae, a notch in the edge of the pygidium, at the posterior extremity of the body.
"Explanation of Terms Used in Entomology" by John. B. Smith