Tuberculate Litter Cockroach: S1, Male, Cercus

Tuberculate Litter Cockroach (Platyzosteria scabrella)

Class:

Animals (Animalia) - Jointed Legs (Arthropoda) - Insects (Insecta)

Order:

Cockroaches (Blattodea)

Family:

Cockroach (Blattidae) iNaturalist Observation

Species:

Tuberculate Litter Cockroach (Platyzosteria scabrella)

This Photo:

🔍S1, Male, Cercus🔎

Thank you Matthew Connors (Matthew_Connors) for identifying this species for us

General Species Information:
Found on Ellura (in the Murray Mallee, SA) and elsewhere
1st Live Photo Identified:

~17mm & ~22mm long females & ~19.5mm long male.

A VERY special thankyou to Matthew, who not only id'ed these for us, but actually found all 3 specimens. His ability to find inverts is astounding!

Matthew said the key features were

Asymmetrical claws; it's good at the start because a couple of Melanozosteria species have symmetrical claws, so if the claws are symmetrical we can easily tell that it's Melanozosteria
Very tuberculate, especially towards the abdomen.
No wings, or wing buds.
Coxal borders are yellow.
Usually not uniformly dark, often reddish patches, especially around the edges.
Size 16-25mm but usually under 20mm.
Fore-fema comb takes up approximately 3/4 of the fema.

This species is

Australian Native Species, not listed in the SA Murray Mallee Survey of 2010.

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