Pear slug

Species of sawfly

Pear slug

Adult (top) and larva with leaf damage (bottom)
Scientific classification
Kingdom:  | Animalia
Phylum:  | Arthropoda
Class:  | Insecta
Order:  | Hymenoptera
Suborder:  | Symphyta
Family:  | Tenthredinidae
Genus:  | Caliroa
Species:  |

C. cerasi

Binomial name
Caliroa cerasi

Linnaeus, 1758

The pear slug or cherry slug is the larva of the sawfly, Caliroa cerasi, a nearly worldwide pest. The species was first described by Carl Linnaeus in his landmark 1758 10th edition of Systema Naturae. They are not slugs but are a kind of sawfly of the family Tenthredinidae. The pear slug is an important pest that eats leaves of cherry, pear, and plum trees, leaving behind a skeleton of veins. The larvae cover themselves in green slime, making themselves unpalatable to predators. The larva molt between five and eight times before being fully grown.[1] When the larvae are fully grown, they drop from the tree to the ground and pupate underground. The adult sawfly emerges from the pupal case and climbs from the soil to mate and lays eggs on the leaves of the host plant, completing the life cycle.

Other sources dispute the notion that the females climb the tree to lay their eggs, claiming instead that they fly to the tree. This is an important detail in regard to their control in horticultural circumstances where glues are used to control climbing pests.

Pear slug larva on a plum tree

## References

[edit]

1. ^ Webster, R. L. (1912). "The Number of Moults of the Pear-Slug, Caliroa cerasi Linné". Journal of the New York Entomological Society. 20 (2): 125–130\. ISSN 0028-7199. Retrieved 8 December 2022.

## External links

[edit]

* Australian Insects
* MacQuarrie, C. J. K. (2004). "Species Details Caliroa cerasi". University of Alberta Museums. E.H. Strickland Entomological Museum. Retrieved November 11, 2020.
* Itis classification
* The sawflies (Symphyta) of Britain and Ireland
* Media related to Caliroa cerasi at Wikimedia Commons
* Data related to Caliroa cerasi at Wikispecies

Taxon identifiers

Caliroa cerasi|

* Wikidata: Q5092523
* Wikispecies: Caliroa cerasi
* ADW: Caliroa_cerasi
* AFD: Caliroa_cerasi
* BioLib: 63473
* BOLD: 309217
* BugGuide: 85499
* EoL: 604540
* EPPO: ERICLI
* EUNIS: 215190
* Fauna Europaea: 355627
* Fauna Europaea (new): 1f75638f-26d4-43cc-9de4-f4edb5752887
* GBIF: 1249682
* iNaturalist: 386969
* IRMNG: 11331030
* ITIS: 152802
* NatureServe: 2.1090769
* NBN: NHMSYS0020480853
* NCBI: 317583
* NZOR: 494c2f6e-d7b8-4964-b44b-09d5431aed14
* Observation.org: 8794
* Open Tree of Life: 418395

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