Ozirhincus millefolii (Wachtl, 1884)

on Achillea, ? Santolina

Ozirhincus millefolii: galls on Achillea millefolium

Achillea millefolium, Belgium, prov. Limbourg, Dal van de Grensmaas, Hochter Bampd-Herbicht, 1.ix.2019 © Carina Van Steenwinkel: four galled florets

Ozirhincus millefolii: galled fruit og Achillea millefolium

the outline of the larve is difficult to recognise

Ozirhincus millefolii: gall on Achillea millefolium

larva in the gall

Ozirhincus millefolii: larva

larva

Ozirhincus millefolii: larva

fully developed larva; the larva has completely digested the endosperm of the seed, but the seed coat and the fruit wall remain unaffected.

Ozirhincus millefolii: larval spatula

spatula of the larva

Ozirhincus millefolii: larval papillae

the papillae around the spatula (the spatula itself is only incompletely in focus)

Ozirhincus millefolii: parasitoid larva

parasitoid larva

Ozirhincus millefolii: spatula

spatula and adjacent papillae (from Dorchin ao)

gall

The solitary larva develops in the slightly swollen fruitlet. Two or three generations. Hibernation and pupation in the gall.

hostplants

Asteraceae,Anthemideae, narrowly oligophagous

Achillea arabica, biserrata, millefolium, nobilis & subsp. neilreichii, ptarmica; Santolina.

In the revision by Dorchin ao (2015a) only Achillea millefolium and ptarmica are cited as host plants.

larva

Ozirhincus millefolii: spatula

prosternum with spatula (from Möhn, 1955a)

synonyms

Clinorrhyncha millefolii.

notes

larvae and pupae are described by Dorchin ao (2015a).

references

Bruun, Jørgensen & Skuhravá (2012a), Buhr (1964b), Dauphin & Aniotsbehere (1997a), Dorchin, Astrin, Bodner & Harris (2015a), Gagné (2010a), Kieffer (1901b), Mirumian (2011a), Möhn (1955a), Redfern & Shirley (2011a), Roskam (2019a), Roskam & Carbonnelle (2015a), Simova-Tošić, Skuhravá & Skuhravý (1996a, 2000a), Simova-Tošić, Skuhravá, Skuhravý & Postolovski (2007a), Skuhravá (1989a), Skuhravá, Bayram, Çam ao (2005a), Skuhravá & Skuhravý (1994a, 1997a,b, 1999a,b, 2005c, 2008a, 2010a, 2012a), Skuhravá, Skuhravý, Blasco-Zumeta & Pujade-Villar (2006a), Skuhravá, Skuhravý, Dauphin & Coutin (2005a), Skuhravá, Skuhravý & Meyer (2014a), Skuhravá, Skuhravý, Skrzypczyńska & Szadziewski (2008a), Tomasi (2014a), Wachtl (1884a).

mod 27.ix.2019