Is the side of thorax pale blue, the top of abdomen black,
and four blue spots on top of thorax?
Is there a green stripe on side of thorax and a blue stripe
on top?
Is the top of thorax a solid black with a blue-green abdomen?
Pacific
Forktail
Ischnura cervula
Ischnura cervula
Western
Forktail
Ischnura perparva
Ischnura perparva
Black-fronted
Forktail
Ischnura denticollis
Ischnura denticollis