Uroleucon grossum (Hille Ris Lambers, 1939)

large hawksbeard aphid

on Crepis

Uroleucon grossum: aptera on Crepis capillaris

Crepis capillaris, UK © Bob Dransfield & Bob Brightwell, InfluentialPoints

Uroleucon grossum on Crepis biennis

Crepis biennis, Belgium, prov. Namur, Roly, 25.v.2022 © Sébastien Carbonelle

Uroleucon grossum on Crepis biennis

attractive spot

parasite

Apterae 3-5 mm, on the upper parts of the stems.

host plants

Asteraceae, monophagous

Crepis biennis, capillaris, foetida, neglecta, tectorum.

synonyms

Dactynotus, Uroleucon cichorii grossus/grossum. Possibly conspecific with U. cichorii (see Blackman & Eastop).

notes

According to Wojciechowski ao the species would live primarily on Hypochaeris; that seems a mistake.

references

Barbagallo, Binazzi, Pennacchio & Pollini (2011a), Barbagallo & Massimino Cocuzza (2014a), Barbagallo & Pollini (2014a), Blackman & Eastop (2018), Börner & Franz (1956a), Heie (1995a), Hellrigl (2004a), Lampel & Meier (2007a), Osiadacz & Wojciechowski (2008a)m Petrović (1998a), Weis (1955a), Tizado Morales & Nieto Nafría (1991a), Wojciechowski, Depa, Halgoš ao (2016a).