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Diplolepis (wasp)

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Diplolepis
Diplolepis rosae gall
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Diplolepididae
Subfamily: Diplolepidinae
Genus: Diplolepis
Geoffroy, 1762

Diplolepis is a genus of approximately fifty species of gall-inducing wasps in the family Diplolepididae.[1][2][3] The larvae induce galls on wild roses (Rosa), and rarely on domestic roses.[2][3][4]

Description

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Adults are small (3–6 mm, 0.12–0.24 in) with a strongly arched mesosoma giving them a hunched appearance.[5] Coloration ranges from entirely orange to reddish-brown or black.[5] Larvae are legless and cream-colored with a weakly defined head.[5]

Galls formed by a given species can usually be distinguished from those of other species by the shape, size, placement, and ornamentation (smooth or spiny) of the gall, together with the identity of the host plant.[2][5] However, gall morphology can be modified by the presence of inquilines and parasitoids.[2][5] Some species induce galls on leaves, while others induce galls on stems or adventitious shoots.[2][5] Depending on the species of wasp, galls may be single-chambered or multi-chambered, and detachable or integral.[2][5]

Range

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Diplolepis species occur throughout the holarctic region.[2][3] While most described species are in the nearctic, it is likely many species remain to be discovered and described, particularly in the eastern palearctic.[2][4]

Life cycle

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All Diplolepis species lay eggs and induce galls only on rose (Rosa) species, and are thus dependent on roses to complete their life cycle.[2][5] There is only one generation per year.[2] Adult emergence from galls coincides with the availability of suitable host plant tissue required for oviposition and gall formation; this can be in spring or later in summer depending on the species.[5] The adult life span is 5–12 days, during which they mate and the females lay their eggs.[5] Eggs are attached to 1-2 plant cells and gall formation begins before the eggs hatch.[5] Larvae are entirely surrounded by their galls shortly after they begin feeding.[5] Larvae remain in their galls during the summer while feeding on gall tissue, and mature by late summer.[5] They overwinter in their galls as pre-pupae; they complete pupation in spring and the adults chew their way out of the galls.[5]

Diplolepis rosae adult

Inquilines and parasitoids

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The galls of nearly all Diplolepis species are known to host inquilines - species that invade and occupy a gall but do not feed on the larva of the inducing species, though the inducing larva often dies as a result of the activity of the inquiline.[2][5] Species of the gall wasp genus Periclistus are the most common inquiline species found in Diplolepis galls and may occupy over half the Diplolepis galls produced in a given year.[5]

The larvae of both the gall-inducing Diplolepis species and the inquilines (if present) are used as hosts by a number of parasitoid wasps, including wasps from the families Eulophidae, Eupelmidae, Eurytomidae, Ormyridae, Pteromalidae, Torymidae, and Ichneumonidae.[5][6][7]

Taxonomy

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The name 'Diplolepis' was first used for this group by Etienne-Louis Geoffroy in 1762.[8] The genus is monophyletic and, with Liebelia, constitutes the subfamily Diplolepidinae.[1] This subfamily was previously considered a tribe - Diplolepidini - of the gall wasp family Cynipidae.[1][2][3] There are currently about 50 described species in the genus, including:[2][4][9]

References

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  1. ^ a b c Jack Hearn; Erik Gobbo; José Luis Nieves-Aldrey; et al. (3 October 2023). "Phylogenomic analysis of protein-coding genes resolves complex gall wasp relationships". Systematic Entomology. doi:10.1111/SYEN.12611. ISSN 0307-6970. Wikidata Q123440111.
  2. ^ a b c d e f g h i j k l m Y. Miles Zhang; Matthew L. Buffington; Chris Looney; Zoltán László; Joseph D. Shorthouse; Tatsuya Ide; Andrea Lucky (29 August 2020). "UCE data reveal multiple origins of rose gallers in North America: Global phylogeny of Diplolepis Geoffroy (Hymenoptera: Cynipidae)". Molecular Phylogenetics and Evolution. 153: 106949. doi:10.1016/J.YMPEV.2020.106949. ISSN 1055-7903. PMID 32866614. Wikidata Q99634248.
  3. ^ a b c d Fredrik Ronquist; José Luis Nieves-Aldrey; Matthew L Buffington; Zhiwei Liu; Johan Liljeblad; Johan A A Nylander (2015). "Phylogeny, evolution and classification of gall wasps: the plot thickens". PLOS One. 10 (5): e0123301. Bibcode:2015PLoSO..1023301R. doi:10.1371/JOURNAL.PONE.0123301. ISSN 1932-6203. PMC 4439057. PMID 25993346. Wikidata Q28647214.
  4. ^ a b c Juli Pujade-Villar; Yiping Wang; Wenli Zhang; Noel Mata-Casanova; Irene Lobato-Vila; Avar-Lehel Dénes; Zoltán László (17 January 2020). "A new Diplolepis Geoffroy (Hymenoptera, Cynipidae, Diplolepidini) species from China: a rare example of a rose gall-inducer of economic significance". ZooKeys. 904 (904): 131–146. doi:10.3897/ZOOKEYS.904.46547. ISSN 1313-2989. PMC 6981308. PMID 32002012. Wikidata Q87010198.
  5. ^ a b c d e f g h i j k l m n o p q Joseph D. Shorthouse (2010). "Galls Induced by the Cynipid Wasps of the genus Diplolepis (Hymenoptera: Cynipidae) on the Roses of Canada's Grasslands" (PDF). Arthropods of Canadian Grasslands (Volume 1): Ecology and Interactions in Grassland Habitats. doi:10.3752/9780968932148.CH12. Wikidata Q100878188.
  6. ^ Özlem Mete; Hossein Lotfalizadeh (17 June 2019). "Parasitoid wasps associated with Diplolepis galls (Hymenoptera: Cynipidae) in Turkey: an updated checklist and report of three non-regular species". Phytoparasitica. 47: 361–374. doi:10.1007/S12600-019-00740-3. ISSN 0334-2123. Wikidata Q106427574.
  7. ^ Yoshihisa Abe; George Melika; Graham N. Stone (January 2007). "The diversity and phylogeography of cynipid gallwasps (Hymenoptera: Cynipidae) of the Oriental and eastern Palearctic regions, and their associated communities". Oriental Insects. 41 (1): 169–212. doi:10.1080/00305316.2007.10417504. ISSN 0030-5316. Wikidata Q56853717.
  8. ^ Geoffroy (1762). Histoire abregée des insectes. Paris: Durand. doi:10.5962/bhl.title.65744.
  9. ^ Krombein, Karl V. (1979). Catalog of hymenoptera in America north of Mexico. Washington: Smithsonian Institution Press. doi:10.5962/bhl.title.5074.
  10. ^ Pujade-Villar, Juli; Wang, Yiping; Zhang, Wenli; Mata-Casanova, Noel; Lobato-Vila, Irene; Dénes, Avar-Lehel; László, Zoltán (2020-01-17). "A new Diplolepis Geoffroy (Hymenoptera, Cynipidae, Diplolepidini) species from China: a rare example of a rose gall-inducer of economic significance". ZooKeys (904): 131–146. Bibcode:2020ZooK..904..131P. doi:10.3897/zookeys.904.46547. ISSN 1313-2970. PMC 6981308. PMID 32002012.
  11. ^ Abe, Yoshihisa; Ide, Tatsuya; Matsuo, Kazunori; Maeto, Kaoru; Wu, Yajiao (16 May 2023). "Extinction Threat to a Previously Undescribed Species of Gall Wasp (Hymenoptera: Cynipidae) and Two Associated Parasitoid Species (Hymenoptera: Braconidae and Eulophidae) on a Threatened Rose". Annals of the Entomological Society of America. 116 (3): 154–161. doi:10.1093/aesa/saad004. PMC 10187585. PMID 37201158.
  12. ^ Zhu, Qifan; Looney, Chris; Chen, Tianlin; Cuesta-Porta, Víctor; Zoltán, László; Wang, Yiping; Pujade-Villar, Juli (2021-06-14). "A new species of Diplolepis Geoffroy (Hymenoptera: Cynipidae: Diplolepidini) from northeastern China". Zootaxa. 4985 (2): 219234. doi:10.11646/zootaxa.4985.2.5. ISSN 1175-5334. PMID 34186657. S2CID 235686966.
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