Janetiella tuberculi (Rübsaamen, 1889)

on Cytisus

Janetiella tuberculi: gall on Cytisus scoparius

Cytisus scoparius, gall (from Houard, 1909a)

gall

Small, slender, unilateral swelling of a shoot, c. 2 mm long, housing one orange-red larva. Often in numbers, just below a bud, close to the growing point. The larva pupates in the gall, after having prepared a window, closed with a thin membrane, in the top of the gall, by which the midge escapes in the spring.

hostplants

Fabaceae, narrowly monophagous

Cytisus scoparius, striatus.

synonyms

Cecidomyia tuberculi author.

references

Beguinot (2000b, 2002e, 2003a), Buhr (1965a), Dauphin & Aniotsbehere (1997a), Gagné (2010a), Kieffer (1890a, 1891), Redfern & Shirley (2011a), Roskam & Carbonnelle (2015a), Skuhravá, Skuhravý, Blasco-Zumeta & Pujade-Villar (2006a), Skuhravá, Skuhravý, Dauphin & Coutin (2005a), Skuhravá, Skuhravý & Meyer (2014a), Skuhravá, Skuhravý, Skrzypczyńska & Szadziewski (2008a).

mod 4.ix.2018