Heterarthrus flavicollis (Gussakovskij, 1947)

on norway maple

Acer platanoides, Russia, Moscow region, Zhukovo village, 6.vii.2021 ​© Andrey Ponomarev

detail of the still young mine

larva dorsal,

lateral,

ventral

Acer platanoides, Hungary, Budapest, Hűvösvölgy, 3.vi.2019 © László Érsek

the mine in detail

mine lighted from behind

frass granules in the opened mine

larva dorsal and ventral

larva, dorsal

head and thorax, dorsal

abdomen tip, dorsaal

head and thorax, ventral

thoracic feet

abdomen tip, ventral

detail

mine

Mine entirely like that of Heterarthrus cuneifrons: a large upper-surface (but virtually full depth) blotch, without a trace of an initial corridor, starting in the centre of the leaf. Full grown larval in a discoidal cocoon in the mine. In the end the cocoon drops out if the mine, taking a disk of upper epidermis with it.

host plants

Sapindaceae, narrowly oligophagous

Acer platanoides.

The only Heterarthrus on norway maple.

phenology

Fully developed mines in July.

BENELUX

Not known from the Benelux countries (Fauna Europaea, 2008).

distribution within Europe

Described from Georgia; within Europe known only from Sweden and Germany (Liston, 1995a); as demonstrated by the pictures also in Hungary.

synonyms

Phyllotoma aceris: Hering (1957a), Wahlgren, 1944a, 1951a.

notes

Between the Russian and Hungarian larvae shown above conspicuous differences are recognisable in extent and number of the ventral and also dorsal (mesothorax) spots. This may be due to the younger age of the Russian larva; but also regional differences may exist.

references

Altenhofer & Zombori (1987a), Blank ao (1998a), Hering (1957a), Liston (1993a,d, 1995a), Liston, Mutanen & Viitasaari (2019a), Späth & Liston (2003a), Taeger, Blank & Liston (2006a), Taeger ao (1998a), Wahlgren (1944a, 1951a).