Chapman's Blue
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''Polyommatus thersites'', the Chapman's blue, is a butterfly in the family
Lycaenidae Lycaenidae is the second-largest family (biology), family of butterflies (behind Nymphalidae, brush-footed butterflies), with over 6,000 species worldwide, whose members are also called gossamer-winged butterflies. They constitute about 30% of ...
. It is found in southern Europe,
Morocco Morocco, officially the Kingdom of Morocco, is a country in the Maghreb region of North Africa. It has coastlines on the Mediterranean Sea to the north and the Atlantic Ocean to the west, and has land borders with Algeria to Algeria–Morocc ...
,
Lebanon Lebanon, officially the Republic of Lebanon, is a country in the Levant region of West Asia. Situated at the crossroads of the Mediterranean Basin and the Arabian Peninsula, it is bordered by Syria to the north and east, Israel to the south ...
,
Asia Minor Anatolia (), also known as Asia Minor, is a peninsula in West Asia that makes up the majority of the land area of Turkey. It is the westernmost protrusion of Asia and is geographically bounded by the Mediterranean Sea to the south, the Aegean ...
,
Iran Iran, officially the Islamic Republic of Iran (IRI) and also known as Persia, is a country in West Asia. It borders Iraq to the west, Turkey, Azerbaijan, and Armenia to the northwest, the Caspian Sea to the north, Turkmenistan to the nort ...
and across the
Palearctic The Palearctic or Palaearctic is a biogeographic realm of the Earth, the largest of eight. Confined almost entirely to the Eastern Hemisphere, it stretches across Europe and Asia, north of the foothills of the Himalayas, and North Africa. Th ...
to
Siberia Siberia ( ; , ) is an extensive geographical region comprising all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has formed a part of the sovereign territory of Russia and its predecessor states ...
and
Tian Shan The Tian Shan, also known as the Tengri Tagh or Tengir-Too, meaning the "Mountains of God/Heaven", is a large system of mountain ranges in Central Asia. The highest peak is Jengish Chokusu at high and located in Kyrgyzstan. Its lowest point is ...
. It is a small butterfly with both generation dimorphism and sexual dimorphism. For the first generation the upperside is blue with grey hind-wings and in the female a sub-marginal line of orange spots. The summer generation of the female is brown with the same sub-marginal line of orange spots while they are absent in the lighter male. Representatives of both sexes have in the spring generation grey-colored hindwing undersides while (sandy brown in the summer generation). The underside is ochre marked with black dots circled in white and decorated with a sub-marginal line of orange spots. The forewing underside is yellow grey in summer females. ''Polyommatus thersites'' is similar to ''
Polyommatus icarus The common blue butterfly or European common blue (''Polyommatus icarus'') is a butterfly in the family Lycaenidae and subfamily Polyommatinae. The butterfly is found throughout the Palearctic and has been introduced to North America. Butterfli ...
'', but they are smaller and both sexes have no basal spots on the underside of the forewing . The larva feeds on ''
Onobrychis __NOTOC__ ''Onobrychis'', the sainfoins, are a genus of Eurasian perennial plant, perennial herbaceous plants of the legume family (Fabaceae). About 206 species are presently accepted. The Flora Europaea lists 23 species of ''Onobrychis''; the m ...
'' species ('' O. arenaria'', '' O. peduncularis'', '' O. sativa'' and '' O. viciifolia'')


Subspecies

Two
subspecies In Taxonomy (biology), biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (Morphology (biology), morpholog ...
are recognized: *''P. t. thersites'' (Europe, south-western
Siberia Siberia ( ; , ) is an extensive geographical region comprising all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has formed a part of the sovereign territory of Russia and its predecessor states ...
,
Caucasus The Caucasus () or Caucasia (), is a region spanning Eastern Europe and Western Asia. It is situated between the Black Sea and the Caspian Sea, comprising parts of Southern Russia, Georgia, Armenia, and Azerbaijan. The Caucasus Mountains, i ...
,
Armenia Armenia, officially the Republic of Armenia, is a landlocked country in the Armenian Highlands of West Asia. It is a part of the Caucasus region and is bordered by Turkey to the west, Georgia (country), Georgia to the north and Azerbaijan to ...
,
Talysh Mountains Talysh Mountains (, , ) is a mountain range in far southeastern Azerbaijan and far northwestern Iran within Ardabil Province and Gilan Province. Geography The Talysh Mountains extend southeastward from the Lankaran Lowland in southeastern Azer ...
,
Kopet Dag The Köpet Dag, Kopet Dagh, or Koppeh Dagh (; ), also known as the Turkmen-Khorasan Mountain Range, is a mountain range on the border between Turkmenistan and Iran that extends about along the border southeast of the Caspian Sea, stretching nort ...
) *''P. t. orientis'' (Sheljuzhko, 1928) (
Alay Mountains The Alay or Alai Range (; ) is a mountain range that extends from the Tien Shan mountain range in Kyrgyzstan west into Tajikistan. It is part of the Pamir-Alay mountain system. The range runs approximately east to west. Its highest summit is Pik ...
, northern
Tian Shan The Tian Shan, also known as the Tengri Tagh or Tengir-Too, meaning the "Mountains of God/Heaven", is a large system of mountain ranges in Central Asia. The highest peak is Jengish Chokusu at high and located in Kyrgyzstan. Its lowest point is ...
, Dzhungarsky Alatau, Altai, Sayan) Chapman's blue (Polyommatus thersites thersites) male underside Bulgaria.jpg, male,
Bulgaria Bulgaria, officially the Republic of Bulgaria, is a country in Southeast Europe. It is situated on the eastern portion of the Balkans directly south of the Danube river and west of the Black Sea. Bulgaria is bordered by Greece and Turkey t ...
Chapman's blue (Polyommatus thersites thersites) female underside Italy.jpg, female,
Italy Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...


References


Bibliography

* {{Taxonbar, from=Q1423288
thersites In Greek mythology, Thersites (; Ancient Greek: Θερσίτης) was a soldier of the Greek army during the Trojan War. Family The ''Iliad'' does not mention his father's name, which may suggest that he should be viewed as a commoner rathe ...
Butterflies of Europe Butterflies of Africa Butterflies of Asia Butterflies described in 1835