There is no way to determine the SPECIES
of the cricket without examining it.
The Big Bang Theory Season 3, Episode 2
On the other hand, I think Sheldon
might be the larval form of his SPECIES.
The Big Bang Theory Season 2, Episode 6
...identifying the genus and SPECIES.
The Big Bang Theory Season 3, Episode 2
If science ever discovers a second member
of your SPECIES...
The Big Bang Theory Season 2, Episode 2
Or maybe I'm part of
a new SPECIES,
The Big Bang Theory Season 5, Episode 6