Thyris fenestrella

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Thyris fenestrella
Thyris fenestrella.jpg
Thyris fenestrella, upperside
Thyrididae - Thyris fenestrella.jpg
Lateral view
Scientific classification
T. fenestrella
Binomial name
Thyris fenestrella
(Scopoli, 1763) [1]
  • Phalaena fenestrellaScopoli, 1763

The pygmy (moth) (Thyris fenestrella) is a moth of the family Thyrididae.

Moth Group of mostly-nocturnal insects in the order Lepidoptera

Moths comprise a group of insects related to butterflies, belonging to the order Lepidoptera. Most lepidopterans are moths, and there are thought to be approximately 160,000 species of moth, many of which have yet to be described. Most species of moth are nocturnal, but there are also crepuscular and diurnal species.

Thyrididae family of insects

The Thyrididae comprise the family of picture-winged leaf moths. They are the only family in the superfamily Thyridoidea, which sometimes has been included in the Pyraloidea, but this isn't supported by cladistic analysis.



This species can be found in central and southern Europe and Asia Minor. The species is most frequent in southern Europe. [2] [3]

Europe Continent in the Northern Hemisphere and mostly in the Eastern Hemisphere

Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, Asia to the east, and the Mediterranean Sea to the south. It comprises the westernmost part of Eurasia.


These thermophilous moths mainly inhabit coastal environments, warm forest edges, sunny slopes with calcareous soil, scrub and hedgerows where the host plant grows. [4]


Thyris fenestrella has a wingspan of 15–20 mm. The basic color of the wings is grayish- dusky brown. The frontwings have some orange dots along the front edge and a distinctive slightly translucent whitish patch in the middle of each wing. These almost transparent areas are similar to windows (hence the Latin species name fenestrella, meaning small window). Two of such windows are present also in the middle of the hindwings. The abdomen is blackish-brown, with some slight white cross bands. [4] [5]

Wingspan distance from the tip of one limb such as an arm or wing to the tip of the paired limb, or analogically the same measure for airplane wings

The wingspan of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777-200 has a wingspan of 60.93 metres, and a wandering albatross caught in 1965 had a wingspan of 3.63 metres, the official record for a living bird. The term wingspan, more technically extent, is also used for other winged animals such as pterosaurs, bats, insects, etc., and other fixed-wing aircraft such as ornithopters. In humans, the term wingspan also refers to the arm span, which is distance between the length from one end of an individual's arms to the other when raised parallel to the ground at shoulder height at a 90º angle. Former professional basketball player Manute Bol stands at 7 ft 7 in (2.31 m) and owns one of the largest wingspans at 8 ft 6 in (2.59 m).

The caterpillars can reach a length of about 10 millimetres (0.39 in). They are yellowish or olive green with a slightly transparent skin and numerous large black verrucae. The head is dark brown. Pupa are stubby and reddish brown. [5]

Mounted specimen. Upperside and underside Thyris fenestrella MHNT.CUT.2012.0.357 Claix (Isere).jpg
Mounted specimen. Upperside and underside


This species has two generations a year, hibernating as a chrysalis. Adults are on wing from May until mid-August. They are particularly active in sunny days. The larvae feed on Clematis vitalba , [6] Sambucus nigra , Arctium lappa and are found in July and August.

<i>Clematis vitalba</i> species of plant

Clematis vitalba is a shrub of the Ranunculaceae family.

<i>Sambucus nigra</i> species of plant

Sambucus nigra is a species complex of flowering plants in the family Adoxaceae native to most of Europe and North America. Common names include elder, elderberry, black elder, European elder, European elderberry, and European black elderberry. It grows in a variety of conditions including both wet and dry fertile soils, primarily in sunny locations. Elder is cited as a poisonous plant for mammals, and as a weed in certain habitats.

<i>Arctium lappa</i> species of plant

Arctium lappa, commonly called greater burdock, gobō (牛蒡/ゴボウ), edible burdock, lappa, beggar's buttons, thorny burr, or happy major is a Eurasian species of plants in the Aster family, cultivated in gardens for its root used as a vegetable. It has become an invasive weed of high-nitrogen soils in North America, Australia, and other regions.

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  1. Catalogue of life
  2. Fauna europaea
  3. Funet
  4. 1 2 ‹See Tfd› (in Dutch)
  5. 1 2 Łukasz Dawidowicz Confirmation of the occurrence of Thyris fenestrella in Poland and remarks about its biology Zoologica Poloniae (2015) 60/1. 5-9
  6. Paolo Mazzei, Daniel Morel, Raniero Panfili Moths and Butterflies of Europe and North Africa