The science community tries very hard, as described in my post about Birdwing butterflies and their food plants, to make sure each species is uniquely identified by a single Latin name. So long as the Latin names are correct, however, we can have as many local vernacular names as we like without causing significant confusion.
One species, one Latin name, many common names
One species may have several common names, even in the same language in the same region, let alone different languages and different countries.
A smallish ground-feeding black-and-white bird is a good local example, being known as a Magpie-lark, Pee-wee, Peewit or Mudlark. None of those names are wrong, and any doubts about the identity of the bird can be resolved by pointing to one or referring to its unique Latin name, Grallina cyanoleuca.
We were pleased to see a big orb web strung between palms, bananas and the cubby-house at the back of our garden towards the end of May.
Its architect, constructor and homeowner was resting, head down, in the middle of it. I introduced our three species of Golden Orb Weaver here so I don’t need to say much about her identity today except that she was an Australian Golden Orb Weaver, Nephila edulis.
A mature St Andrew’s Cross spider (Argiope keyserlingi) has set up her web between two maidenhair ferns on our back patio and I noticed yesterday morning that she had caught and wrapped a substantial meal, perhaps a fly or a small moth.
Looking more closely after lunch (my lunch, that is, not hers), I saw a much smaller spider hanging around in the edge of her web.
The macro lens with a close-up filter was able to show that it was a Dewdrop Spider, Argyrodes antipodianus, and even that it was a male (those “boxing gloves”, really enlarged palps, are the giveaway).