Massalongia betulifolia Harris, 1974

on Betula

gall

small leaf mines, mainly protruding at the underside, where they have a slit-like opening. Larva solitary, white to yellow-orange, without a sternal spatula. Bivoltine. The summer generation makes lenticular pustules, up tot 3 mm large, in the blade. The autumn generation, often in a green island, makes elliptic galls in the side veins.

hostplants

Betulaceae, monophagous

Betula pendula.

references

Dauphin & Aniotsbehere (1997a), Gagné (2010a), Lambinon, Carbonnelle & Claerebout (2015a), Redfern & Shirley (2011a), Roskam & Carbonnelle (2015a), Skuhravá & Skuhravý (2012a).

mod 7.xii.2018