Taxomyia taxi (Inchbald, 1861)

on Taxus

Taxomyia taxi: galls on Taxus baccata

Taxus baccata, Zwolle, 3.v.2018 © Arnold Grosscurt

Taxomyia taxi: gall on Taxus baccata

gall with exuvium

Taxomyia taxi: gall on Taxus baccata

two-years old gall

Taxomyia taxi: gall on Taxus baccata

another specimen

Taxomyia taxi: gall on Taxus baccata

same gall, partially opened

Taxomyia taxi: gall on Taxus baccata

same gall, with pupa

Taxomyia taxi: imago

imago

Taxomyia taxi: gall on Taxus baccata

Taxus baccata, Zwolle, Zandhove, 16.iv.2019 © Arnold Grosscurt: the one-year old gall is hardly distunguishable from a normal bud

Taxomyia taxi: gall on Taxus baccata

opened gall

Taxomyia taxi: gall on Taxus baccata

Taxus baccata, Belgium, prov. Namur, Chimay © Stéphane Claerebout

Taxomyia taxi: gall and exuvium

gall and exuvium

Taxomyia taxi: galls

fresh gall (left), opened gall (top right) and vacated gall (bottom right) (from Mik, 1885a).

gall

The larva usually needs two years for its development, but sometimes just one. In the first case, by far the most common, an artichoke gall is formed of 1-3 cm; its centre consists of a few broad thin scales that enclose a cavity in which one orange larva lies. When the larva develops in one year essentially only this inner part of the gall is formed, less than 6 mm in size. Pupation in the gall.

host plants

Taxaceae, monophagous

Taxus baccata.

larva

Taxomyia taxi: prosternum

the prosternum has no spatula (from Möhn, 1955a)

synonyms

Oligotrophus taxi.

references

Barnes (1951a), Béguinot (2006c), Bellmann (2012a), Bodziarczyk, Widlak & Siwa (2016a), Buhr (1965a), Chinery (2011a), Cilbircioğlu & Ünal (2009a), Dauphin & Aniotsbehere (1997a), Gagné (2010a), Haarder, Bruun, Harris & Skuhravá (2016a), Hellrigl (2006a), Houard (1908a), Kollár (2007a, 2011a), Koops (2013a), Lambinon, Carbonnelle & Claerebout (2015a), Lovett & Chappell (1970a), Mik (1885a), Möhn (1955a), Redfern & Cameron (1994a, 1997a), Redfern & Hunter (2005a), Redfern & Shirley (2011a), Roskam (2009a), Roskam & Carbonnelle (2015a), Skuhravá, Bayram, Çam ao (2005a), Skuhravá & Skuhravý (1994a, 1997a, 1999a, 2010a, 2012a), Skuhravá, Skuhravý, Blasco-Zumeta & Pujade-Villar (2006a), Skuhravá, Skuhravý & Buhr (2013a), Skuhravá, Skuhravý, Dauphin & Coutin (2005a), Skuhravá, Skuhravý & Hellrigl (2001a), Skuhravá, Skuhravý & Meyer (2014a), Skuhravá, Skuhravý, Skrzypczyńska & Szadziewski (2008a), Tomasi (2003a, 2014a), Unal & Akkuzu (2009a).

mod 13.vi.2019