Rhopalosiphoninus latysiphon (Davidson, 1912)

Morphological characters

1.4-2.5 mm.                      
Apterous: olive-green with a patch which covers the whole abdomen; cornicles black, glossy and very strongly bulging in their central part.
Alate: dark olive-green, plump with trapezoid abdominal patch; cornicles strongly bulging and black, cauda medium-sized, triangular and dark.

Life cycles

Anholocyclic.

Host plants

Polyphagous, R. latysiphon colonizes the bulbs and roots of numerous plants: Solanum tuberosum (potato), Tulipa (tulip), Gladiolus (gladioli).

Agronomic impact

R. latysiphon lives on roots and leaves of plants, on stored bulbs, potato sprouts where it forms densely populated sleeves.
It affects plants’ germination power.
It is a vector of the potato leafroll virus (PLRV).