(after Levi 1996): Celaenia differs from Taczanawskia by being large in size, and by the epigynum in females and the palpus in males being heavily sclerotized.
However, Taczanawskia does not occur in Australia and species of Celaenia are therefore very distinct, with a constricted cephalic region.
Levi HW
(1996):
The genus Taczanowskia of the orb-weaver spider family Araneidae (Araneae). Anales del Instituto Biológico de la Universidad Nacional Autónoma de México, Serie Zoologia. 67: 183
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