Disholandricus

Melika, Pujade-Villar & Nicholls, 2021

Species Guides

1

Disholandricus is a of oak gall wasps in the Cynipidae, tribe Cynipini. Established in 2021, it comprises four transferred from other genera based on morphological and molecular evidence: D. chrysolepidis, D. lasius, D. reniformis, and D. truckeensis. All species are restricted to the Nearctic region.

Disholandricus lasius by (c) Cricket Raspet, some rights reserved (CC BY), uploaded by Cricket Raspet. Used under a CC-BY license.Disholandricus lasius by (c) Garth Harwood, some rights reserved (CC BY), uploaded by Garth Harwood. Used under a CC-BY license.Disholandricus lasius by (c) Garth Harwood, some rights reserved (CC BY), uploaded by Garth Harwood. Used under a CC-BY license.

Pronunciation

How to pronounce Disholandricus: /ˌdaɪʃoʊlænˈdrɪkəs/

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Identification

Distinguished from other oak cynipid by morphological characters detailed in the original description (Melika et al., 2021), including specific features of the gall and . A key to is provided in the taxonomic revision.

Images

Distribution

Nearctic biogeographic realm.

Host Associations

  • Quercus - gall induction placement in Cynipini (oak gall wasps) indicates association with oaks
  • Chrysolepis - gall inductionInferred from epithet D. chrysolepidis and related literature on oak gall wasp associations

Ecological Role

Gall inducer: induces gall formation on plants, creating specialized structures that provide and food for the developing larvae.

Similar Taxa

  • BurnettweldiaRelated Nearctic oak cynipid described in the same taxonomic revision; distinguished by morphological and molecular characters
  • NichollsiellaRelated Nearctic oak cynipid described in the same taxonomic revision; distinguished by morphological and molecular characters
  • ParacraspisRe-established Nearctic in the same revision; historically confused with related but distinguished by diagnostic morphological features

More Details

Taxonomic history

All four were previously classified in other and transferred to Disholandricus as new combinations in 2021 based on integrated morphological and molecular data ( sequences). The genus was formally described by Melika, Pujade-Villar, Nicholls, Cuesta-Porta & Stone.

Species included

D. chrysolepidis (Ashmead, 1896), D. lasius (Ashmead, 1896), D. reniformis (McCracken & Egbert, 1922), D. truckeensis (Ashmead, 1896)

Sources and further reading