Caloptilia azaleella

Caloptilia azaleella (azalea leaf miner) is a moth of the family Gracillariidae. It is endemic to Japan, but has been introduced worldwide, wherever there are Azaleas.[2]

Azalea leaf miner
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Gracillariidae
Genus: Caloptilia
Species:
C. azaleella
Binomial name
Caloptilia azaleella
(Brants, 1913)[1]
Synonyms
  • Gracilaria azaleella Brants, 1913
  • Caloptilia anthracosperma (Meyrick, 1931)
  • Gracilaria azaleae Busck, 1914
  • Caloptilia azaleae (Busck, 1914)

Distribution

Initially described in the Netherlands from plants imported from Japan, it is found throughout Europe and has also been introduced to New Zealand and eastern Australia.[3] In the southern part of Britain it occurs in sheltered gardens including Buckingham Palace, the Royal Botanic Gardens, Kew and the Royal Horticultural Society Gardens, Wisley.[4] It has been widely reported in greenhouses. In the United States the species can be found from Florida to Texas, and as far north as Long Island, West Virginia, and the Ohio Valley.[2] On the west coast it is found in California, Washington and British Columbia, Canada.[5]

Description

The type locality is from Boskoop, Netherlands, and was described in 1913, from moths reared on Azalea indica, a cultivar of Rhododendron indicum, which was imported from Japan.[4] The moths forewings are mainly dark-brown with a yellow band along the costal margin. The wingspan is 10–11 millimetres (0.39–0.43 in) and it flies from May to October depending on location and in Britain is double-brooded and sometimes there is a partial third brood.[6]

Ecology

Caloptilia azaleella deposits its eggs on azalea (Rhododendron spp) plants, under leaves near the midrib. Thiese are the only hosts so far recorded.[2] The larva initially forms a mine and later rolls the leaf downwards from the tip, forming a cone.[6] When mature a pale-brown pupa is formed in a white, membranous silken cocoon spun beneath a leaf and the moths can mate a week later.[2][4]

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References
  1. "Caloptilia azaleella (Brants, 1913)". 2.5. Fauna Europaea. 23 July 2012. Retrieved 27 January 2017.
  2. "Azalea leaf miner". University of Florida. Retrieved 27 January 2017.
  3. "Caloptilia azaleella (Azalea leafminer moth)". T.E.R:R.A.I.N - Taranaki Educational Resource: Research, Analysis and Information Network. Retrieved 27 January 2017.
  4. Emmet, A M; Watkinson, I A; Wilson, M R (1985). Emmet, A Maitland (ed.). The Moths and Butterflies of Great Britain and Ireland. Volume 2. Colchester: Harley Books. p. 262. ISBN 0 946589 19 4.
  5. "017250 – 0592 – Caloptilia azaleella – Azalea Leafminer Moth – (Brants, 1913)". Moth Photographers Group. Retrieved 27 January 2017.
  6. "Azalea Leaf Miner Caloptilia azaleella". UKMoths. Retrieved 27 January 2017.


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