Hexomyza simplicoides

Hexomyza simplicoides is a species of fly in the family Agromyzidae and forms woody galls on many species of willow.

Hexomyza simplicoides
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Diptera
Family:
Agromyzidae
Genus:
Hexomyza
Species:
H. simplicoides
Binomial name
Hexomyza simplicoides
(Hendel, 1920)
Synonyms

Melanagromyza simplicoides Hendel, 1920

Description

The woody gall is a spindle-shaped swelling tapering into the stem. It is about 2 cm long and at its widest 0.5 cm, but can be indistinct, with the stem barely swollen. Several galls may form around the stem. During the summer there is one white larva in a spherical chamber, which pupates and overwinters in the gall.[1] The puparium is yellowish, with bright reddish brown front segments.[2]

Goat willow (S.caprea) is considered to be the main host but has been recorded from many species of sallow including S. alba, S. triandra and S. viminalis and on the hybrids between them.[1] Also recorded on S. aurita, S. cinerea, S. cinerea subsp. oleifolia, S. pedicellata and S.repens[3]

Distribution

Recorded from Austria, Belgium, Finland, France, Germany, Hungary, Italy, Kyrgyzstan, Lithuania, Netherlands, Poland, Spain and Switzerland.[2][3]

Parasitoids

References
  1. Redfern, Margaret; Shirley, Peter; Boxham, Michael (2011). British Plant Galls (Second ed.). Shrewsbury: Field Study Council. pp. 282–299. ISBN 978 185153 284 1.
  2. Pitkin, Brian. "Hexomyza simplicoides (Hendel, 1920)". UKflymines. Retrieved 23 November 2017.
  3. Ellis, W N. "Hexomyza simplicoides". Plant Parasites of Europe. Retrieved 23 November 2017.
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