Taxonomy
- Polyphaga
- Chrysomeloidea
- Chrysomelidae
- Longitarsus
- Longitarsus jacobaeae
Description
Size: 2.5-3mm
Basic colour: Pale yellowish
Pattern colour: None
Number of spots: None
Pronotoum: As basic colour
Leg colour: As basic colour
Confusion species: Longitarsus flavicornis
Basic colour: Pale yellowish
Pattern colour: None
Number of spots: None
Pronotoum: As basic colour
Leg colour: As basic colour
Confusion species: Longitarsus flavicornis
Palaearctic; introduced into North America.
Biology
Status: Widespread and locally common
Habitat: Various
Host plant: Ragworts (Senecio spp.)
Overwintering: As adults
Food: Adults on leaves, larvae at root-crowns and petioles of lower leaves.
Other notes: Dissection of aedeagus needed to separate this species from L. flavicornis. Two Hymenopteran parasites known: a braconid (probably Perilitus sp.) from adults, and a mymarid (Anaphes sp, probably A. euryale) from eggs.
Habitat: Various
Host plant: Ragworts (Senecio spp.)
Overwintering: As adults
Food: Adults on leaves, larvae at root-crowns and petioles of lower leaves.
Other notes: Dissection of aedeagus needed to separate this species from L. flavicornis. Two Hymenopteran parasites known: a braconid (probably Perilitus sp.) from adults, and a mymarid (Anaphes sp, probably A. euryale) from eggs.
Articles
-
(1975),
Longitarsus jacobaeae Waterhouse (Col., Chrysomelidae) identity and distribution
Entomologist’s Monthly Magazine 111():33-39