Mexico, USA & Canada
Western Green Hairstreak
Family - LYCAENIDAE
subfamily - THECLINAE
Tribe - EUMAEINI
Callophrys affinis apama White
Mountains, Arizona, USA
© Frank Model
are about 30 Callophrys species, the
most widespread of which is the Green Hairstreak
rubi, which is distributed across most
of Europe and temperate Asia. There are 9 other species found in
temperate Asia, and one restricted to Spain and North Africa. In
North America there are a further 25 species, of which 7 are found
in Mexico. Only 2 species are found further south, one of which is
endemic to Guatemala.
The upperside wings
of all Callophrys species are dull
earthy brown in both sexes although several including
estella, dospassosi and
guatemalena have a blue iridescence.
The undersides of some species are marbled in shades of brown and/or
greyish-brown, but the majority of species are iridescent green.
Most species are marked with a white 'hair streak' line across both
wings, but this is highly variable within a given species, and may
be broken into a series of dashes or dots, or entirely absent.
is found in the western states of the USA. There are 6 subspecies.
The illustrated subspecies apama is
found in Arizona and New Mexico.
This species occurs in forest edge habitats, chaparral, sagebrush,
scrub and dunes.
The eggs are pale green and are laid singly on the leaves and
flower-buds of the foodplants. A wide range of plants are utilised
including Lotus ( Fabaceae ),
Ceanothus ( Rhamnaceae ) and
Eriogonum ( Polygonaceae ) according to
subspecies and habitat. The larva occurs in several beautiful colour
forms - either green with yellow markings, green with red and white
markings, or greyish with pink markings. All of these forms may be
found together on a single plant, and can be the progeny of a single
female. The pupa, which is the hibernating state, is brown with fine
spend most of the day perching on bushes to await passing females, and
dart up aggressively to intercept and investigate any passing insect.
Both sexes nectar at the flowers of a wide range of herbaceous plants