Chrysogaster virescens Loew, 1854

Ricarte, Antonio, Nedeljković, Zorica, Rotheray, Graham E., Lyszkowski, Richard M., Hancock, Geoffrey, Watt, Kenneth, Hewitt, Stephen M., Horsfield, David & Wilkinson, Geoffrey, 2012, Syrphidae (Diptera) from the Greek island of Lesvos, with description of two new species, Zootaxa 3175, pp. 1-23 : 5

Chrysogaster virescens Loew, 1854

New to Greece

Material examined. 1 Ƥ, Agiasos, 39º3´N 26º23´E, 28.v.2010, leg. S.M. Hewitt; 1 Ƥ, Agiasos, 1.vi.2010, leg. G. Wilkinson [ NMS]; 1 Ƥ, Agiasos, sweet chestnut forest, near car park, 1.vi.2010, leg. Kenn Watt [KW].

Notes. The Lesvos material keyed out to C. virescens using Speight and Sarthou (2010), a species that has been predominantly recorded in central and northern parts of Europe and in northern Spain. One of the critical steps in this key is the relative width of the face at the level of the antennal insertion with respect to the width of an eye at the same level (face nearly 2× wider than an individual eye), but the value for the examined specimens ranged from 1.9 to 2.6. The specimens possess a dark pigmented area in the mid third of the wing, a feature which is not present in the examined specimens of C. virescens from Britain deposited in NMS. However the degree of wing pigmentation is variable in the females of some Chrysogaster Meigen species (Speight & Sarthou, 2010). Larva undescribed.