Dryomyia circinans (Giraud, 1861)

on Quercus

Dryomyia circinans: galls on Quercus cerris

Quercus cerris, Hungary, Budapest © László Érsek; upperside

Dryomyia circinans: galls on Quercus cerris

three galls in detail, upperside

Dryomyia circinans: galls on Quercus cerris

same leaf, underside

Dryomyia circinans: galls on Quercus cerris

sane three galls in detail, underside

Dryomyia circinans: gall on Quercus cerris, opened

section through a gall

Dryomyia circinans: mature gall, opened

mature gall, opened

Dryomyia circinans: larva

larva

gall

Strong and densely hairy disk with a diameter of c. 6 mm at the underside of the leaf; at the upperside the gall forms a small ring with in its centre al hole that opens into the gall chamber, where a single larva lives. Often several galls on a leaf. Young galls, where the hairs are proportionally much longer, look like fluffy dots. Univoltine; larvae hibernate in the soil and pupate in spring.

hostplants

Fagaceae, narrowly monophagous

Quercus cerris, x hispanica, libani, suber, trojana.

References to Q. pubescens are improbable (Csóka, 2012a).

synonyms

Cecidomyia circinans.

larva

see Skuhravý & Skuhravá (1971a)

references

Bellmann (2012a), Buhr (1965a), Ceresa (2015a), Cilbircioğlu & Ünal (2009a), Cogolludo (1921a), Csóka (2012a), Gagné (2010a), Hellrigl (2006a, 2010a), Kollár (2007a), Schremmer (1991a), Simova-Tošić & Skuhravá (2001a), Simova-Tošić, Skuhravá & Skuhravý (2000a, 2004a, 2007a), Simova-Tošić, Skuhravá, Skuhravý & Postolovski (2007a), Skuhravá, Bayram, Çam ao (2005a), Skuhravá & Skuhravý (1994a, 1997b, 1999a), Skuhravá, Skuhravý & Dengler (1997a), Skuhravá, Skuhravý, Dončev & Dimitrova (1991a, 1992a), Skuhravá, Skuhravý & Massa (2007a), Skuhravá, Skuhravý & Meyer (2014a), Skuhravá, Skuhravý & Neacsu (1972a), Skuhravý & Skuhravá (1971a), Stefănescu (2009a), Unal & Akkuzu (2009a).

04/04/2017

pub 23.v.2017 · mod 16.vii.2017