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Gracillaria syringella
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Gracillarioidea >> Gracillariidae >> Ornixolinae >> Micrurapteryx

Micrurapteryx salicifoliella

(Chambers, 1872)
Willow Leafblotch Miner

Sort #: 240 | P3 #: 330172 | MPG #: 647 | PFG Page #: 36
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Larval feeding type: leaf-miner, pupates outside the mine in a silken cocoon
Larval substrate: Salix sp., narrow-leaved* ('narrow-leaved willow'), Salix sp., broad-leaved* ('broad-leaved willow'), Salix sericea* (Silky Willow), Salix discolor* (Pussy Willow), Populus (Poplar)
Phenology: Adult: 5/24 to 10/24 (3 records)

Comment: Adults emerge end of September to mid-November, so presumably overwinter

Status in MA (automated assessment): Restricted distribution, uncommon
Status in N. America: Native
MA Endangered Species Act status: None
First Year Reported: 2004
Last Year Reported: 2021

Distribution by County: Berkshire, Middlesex, Essex, Plymouth
Number of Records: 10

  • Adult reared from larva mining Salix sp. (Photo: ©S. Whitebread)
  • Younger larval mine on Salix sp. (Photo: ©S. Whitebread)
  • Younger larval mine on Salix sp.; underside, showing ejected frass (Photo: ©S. Whitebread)
  • Larval mine on Salix sp. (Photo: ©S. Whitebread)
  • Larval mine on Salix sp. under transmitted light, showing the larva (Photo: ©S. Whitebread)
  • Larva preparing pupal shelter (Photo: ©S. Whitebread)
  • Pupa under thin silken shelter on underside of a Salix sp. The moth emerged 4 days later (Photo: ©S. Whitebread)

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