Carpomya schineri (Loew, 1856)

on Rosa

Rosa, Hungary, Mosonmagyaróvár © László Érsek

different degrees of infection

tunnels in the wall of the hip

larva in its tunnel

the larvae do not penetrate into the interior of the hip

larva

mandibles

Rosa spec., Hongarije, Gödöllő © László Érse: emerging larva

the larva stand motionless erect.

gall

the larvae tunnel in fleshy wall of the hips (the “hypanthium”).

hostplants

Rosaceae, monophagous

Rosa beggerana, canina, x damascena, gallica, kokanica, pulverulenta, rubiginosa, rugosa, spinosissima, villosa

notes

The larvae of Rhagoletis alternata have an identical habit. About the difference between the two László cites from Jermy & Balázs:
R. alternata: rare in Hungary, The adult larva is yellowish white, 5.5-6.0 mm long, 2 mm wide.
Carpomya schineri: common, the adult larva 8-10 mm long, bone-white

references

Balduf (1959a), Baugnée (2006a), Jermy T & Balázs K (eds), 1988-1996. A növényvédelmi állattan kézikönyve [Handbook of agricultural zoology]. 1-6. Akadémiai Kiadó, Budapest, Korneyev, Mishustin & Korneyev (2017a), Smit (2010a).