Monday 2 April 2018

Jordanathrix nr. superba

Formerly designated Calvatomina nr. superba, Jordanathrix nr superba resembles but is distinct from Dicyrtomina superba from New Zealand (which does not occur in the UK). Thought to be a relatively recent introduction to the UK, first recorded about 10 years ago. Similar to Dicyrtomina ornata but in D. ornata the eyepatch is uniformly dark; in this species the dark ocelli are on an lighter eyepatch with a reddish background colour.


Jordanathrix nr. superba
Detail of eyepatch.


Jordanathrix nr. superba
Pigment patch on abdomen - similar to D. ornata.


Jordanathrix nr. superba
Female?


Jordanathrix nr. superba
Male - genital papilla visible below abdomen, smaller than female.




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