Burnettweldia conalis (agamic)

Family: Cynipidae | Genus: Burnettweldia
Detachable: detachable
Color: brown, pink, red, white, yellow, green, black, tan
Texture: pubescent, hairy, hairless
Abundance: occasional
Shape: conical
Season: Fall, Summer
Related:
Alignment: erect, drooping, leaning
Walls: thick
Location: stem
Form: bullet
Cells: monothalamous
Possible Range:i
Common Name(s): Witches Hat Gall Wasp
Synonymy:
Name
Notes
Disholcaspis conalis
Previous name
Weldia conalis
Unpublished manuscript name

Three new Nearctic genera of oak cynipid gall wasps (Hymenoptera: Cynipidae: Cynipini): Burnettweldia Pujade-Villar, Melika & Nicholls, Nichollsiella Melika, Pujade-Villar & Stone, Disholandricus Melika, Pujade-Villar & Nicholls; and re-establishment of the genus Paracraspis Weld

Burnettweldia conalis (Weld 1926), comb. nov.
Asexual

Hosts: Quercus garryana, berberidifolia [see ID Notes]

[A photo of the gall appears on page 32 of the pdf]

Gall. (Fig 92). Detachable monolocular stem galls, pointed, conical, glabrous, occur singly or in clusters of 2–5. The gall is 12–15 mm high and 8–9 mm wide at the base; sides of the gall are smooth; the base of the gall wraps over the stem; larval chamber centrally positioned in the gall base and perpendicular to the gall vertical axis. The parenchyma tissue is soft, not woody, epidermal layer thin; color of growing galls pale green with white pile which turns reddish; mature galls light brown, old galls dark brown to black, not deciduous (Burnett 1977, Russo 2006).

Biology. Galls develop in summer; adults emerge in early autumn. Galls on Q. berberidifolia, Q. garryana (Burks 1979)

Range: CA, Sierra Nevada mountains

- George Melika, Juli Pujade-Villar, James Nicholls, Victor Cuesta-Porta, Crystal Cooke-McEwen, Graham Stone: (2021) Three new Nearctic genera of oak cynipid gall wasps (Hymenoptera: Cynipidae: Cynipini): Burnettweldia Pujade-Villar, Melika & Nicholls, Nichollsiella Melika, Pujade-Villar & Stone, Disholandricus Melika, Pujade-Villar & Nicholls; and re-establishment of the genus Paracraspis Weld©


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