Nemophora congruella

Nemophora congruella is a moth of the Adelidae family.[1]

Nemophora congruella
Museum specimen
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Lepidoptera
Family:
Adelidae
Genus:
Nemophora
Species:
N. congruella
Binomial name
Nemophora congruella
(Zeller, 1839)
Synonyms
  • Adela congruella Zeller, 1839

Distribution

This infrequent transpalaearctic species is present from France and Belgium to Poland and Romania and from Denmark to Italy. It is also present in Russia.[2]

Habitat

These moths live in mountain regions with deciduous and coniferous trees.[3]

Description

The wingspan of Nemophora congruella can reach 15–17 millimetres (0.59–0.67 in).[4] The head is dark brown, with dark yellow hair-like scales. The males have filiform antennae 2.5 times longer than the front wing length, while the females have much shorter antennae. The thorax has a bronzy golden shining. The dominant colour of the forewings is shiny golden yellow-orange, with longitudinal violet black streaks.[3][4]

Forewings have a broad transversal yellow fascia across the whole wings width at about 2/3 of forewing length. This central band is framed by two lead-gray bands with a black border. These two bands are nearly as broad as the central yellow part. The basal part of the wings have three longitudinal lead-gray, blueish-violet shining stripes reaching the transversal fascia. Rear wings are brownish gray.[3]

Nemophora congruella is very similar to Nemophora degeerella and Nemophora amatella, but in these two species the dominant forewing colour is dark, while Nemophora congruella shows lighter colours. The forewing fascia in N. congruella is located closer to the base.[5] Nemophora congruella is slightly smaller and the forewings markings are bright yellow instead of almost leather-brown. The cross-fascia is more straight.[3]

Biology

The adults fly from early May till June.[3] The larvae feed on Picea abies.[4]

Bibliography
  • Kozlov, M. V. (2003): Annotated checklist of the European species of Nemophora (Adelidae) - Nota lepidopterologica 26 (3/4): 115-126
  • Zeller, P. C. (1839): Versuch einer naturgemäßen Eintheilung der Schaben - Isis von Oken 1839 (3): 167-220. Leipzig (Brockhaus).
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References
  1. BioLib
  2. "Nemophora congruella (Zeller, 1839)". 2.5. Fauna Europaea. July 23, 2012. Retrieved March 26, 2013.
  3. Naturkundliches Informations System
  4. Naturhistoriska risk museet
  5. Mikhail V. Kozlov Annotated checklist of the European species of Nemophora (Adelidae) Nota Lepidopterologica 26(3/4):115-126


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