latin - How do you refer to a member of a biological taxon in the singular?

If I wish to refer to, say, an Owl in the more generic form as a member of the biological order Strigiformes, what is the correct modification of the apparently plural word into a singular form?

For instance:

Upon entering the forest, Jonothan was immediately assaulted by an angry [singular strigiformes].

Or:

The Manduca Sexta is a [singular lepidoptera] which feeds on a [singular solanaceae] during the larval phase, normally a Tobacco plant.

Answer

It depends:

• One of the strigiformes is a strigiform. Or an owl.




• One of the lepidoptera is a lepidopter:

  
  
  
  
  
  • 1881 Elwes tr. De S. Pinto’s How I crossed Afr. I. v. 120 ― This gigantic lepidopter, when young, feeds upon the grasses.
  
  



• One of the solanaceae is a solanacean. Or a nightshade.