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Nacarina robusta

Nacarina robusta
Archbold Biological Station, Highlands County, Florida, USA
June 6, 2018

awesome addition -- thanks, colleagues!

I'll go ahead and move this since this distinctly keys to Belanopterygini, and the only other member of that tribe in the US is Abachrysa eureka. Everything I'm able to see aligns with the species description.

This makes a new genus and species for the guide, which also means a new tribe has been added to group this and Abachrysa eureka.

(I'd also definitely invite an upload to iNat as the only ID for the genus over there is stuck in ID purgatory.)

Moved from Chrysopini.

posted to iNat
Thanks again for the ID!

Very intriguing
The pronotum is rather short, so it isn't just another Chrysoperla (and the facial markings immediately rule out Chrysopodes). There are a few species rather restricted to Florida that aren't yet in the guide. It seems that a short pronotum is one of the traits for Nacarina robusta (described as 1.5x as broad as long), which incidentally is shared in its closest ally in the US, Abachrysa eureka (both Belanopterygini). The especially large eyes also align with the specimen in the BOLD Systems repository, and again aligning with Belanopterygini. I would need to find a fuller description for the particular species, but I have a high suspicion (~85-90% confidence) that this is not only a new species for the guide but also a new genus.

Here are the relevant segments from Stange's key to the genera of Florida:

1. Flagellomeres 6–10 very broad, at most 1.1 times longer than broad; pretarsal claws simple; eyes large, greatest diameter nearly as much as interocular diameter; larvae associated with ants (Belanopterygini) .......................2

2'. Pronotum about 1.5 times as broad as long, lacking spots but with broad dark red or purplish marginal or submarginal band; antennal flagellum completely pale brown .......................Nacarina Návas

(Only one species in Florida, Nacarina robusta (Banks) 1905; known from the Panhandle and Highlands County.)

Moved from Green Lacewings.

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