Heterarthrus wuestneii (Konow, 1805)

Heterarthrus wuestneii mine

Acer campestre, Groeningen

larva (in the prepupa stage, colourless!) in the process of cutting its cocoon free

Heterarthrus wuestneii: mine on Acer campestre

Acer campestre, Belgium, prov. Antwerp, Mol © Carina Van Steenwinkel

Heterarthrus wuestneii: mine with cocoon on Acer campeste

mine with cocoon

Heterarthrus wuestneii: larva, dorsal

larval, dorsal

Heterarthrus wuestneii" larva, ventral

larva, ventral

Heterarthrus wuestneii:  mine on Acer campestre

Acer campestre, Denemarken © Simon Haarder

Heterarthrus wuestneii:  prepupa in the mine

prepupa in the mine

mine

A large, upper-surface (often nearly full depth) blotch, without a hint of a preceding corridor, beginning in the tip of a leaf segment. Often a well-defined first section of the mine is much shalllower, green in transparancy. Frass in loose grains. Like in H. aceris the cocoon, that is formed in the mine, drops out of the leaf along with a circular section of the upper epidermis. Like in all Heterarthrus species the larva has thoracic feet that are reduced to triangular stumps.

hostplants

Sapindaceae, narrowly monophagous

Acer campestre.

Tomov & Krusteva (2007a) also mention Acer platanoides; this must be mistake.

phenology

Larvae observed in early June.

BENELUX

BE Paul Fontaine found material that could be identified with certainty in Belgium in 2005 (Rochefort, prov. Namur); the year before I had found mines in Belvaux (Ardennes), but this material stemmed from mid July and consisted of vacated mines.

NE Found in 2005 in the Netherlands (Bergen/Limburg and Venray).

LUX niet waargenomen (Fauna Europaea, 2008).

distribution within Europe

From Denmark to Switerland, and from Britain to the Ukraine (Fauna Europaea, 2008).

larva

synonyms

Heterarthrus healyi Altenhofer & Zombori, 1987 (see Dathe, Taeger & Blank, 2001a); an earlier statement by Liston (1995a) that contrariwise H. cuneifrons were a synonym of wuestneii has been rejected.

references

Altenhofer (2003a), Altenhofer & Zombori (1987a), Blank ao (1998a), Braggion (2013a), Dathe, Taeger & Blank (2001a), Liston (1995b), Liston & Späth (2005a), Pschorn-Walcher & Altenhofer (2000a), Robbins (1991a), Späth & Liston (1995a, 2003a, 2007b), Taeger, Blank & Liston (2006a), Taeger ao (1998a), Tomov & Krusteva (2007a).

06/11/2016

pub 6.xi.2016 · mod 25.vii.2017