Longitarsus ganglbaueri Heikertinger, 1912
Taxonomy: Polyphaga > Chrysomeloidea > Chrysomelidae > Longitarsus > Longitarsus ganglbaueri
Description
Size: 1.8-2.5mm
Basic colour: Yellowish to orange-brown
Pattern colour: Elytral suture darkened, usually as far as (or almost as far as) the tip, forming a broad, sometimes diffuse, stripe. Head dark brown to black.
Number of spots: None
Pronotoum: As basic colour
Leg colour: As basic colour, hind femora darkened.
Confusion species: Longitarsus gracilis
, Confusion species: Longitarsus suturellus
Basic colour: Yellowish to orange-brown
Pattern colour: Elytral suture darkened, usually as far as (or almost as far as) the tip, forming a broad, sometimes diffuse, stripe. Head dark brown to black.
Number of spots: None
Pronotoum: As basic colour
Leg colour: As basic colour, hind femora darkened.
Confusion species: Longitarsus gracilis
, Confusion species: Longitarsus suturellus
Palaearctic; introduced into North America.
Biology
Status: Widespread but scattered; not recorded from Wales. Scarce (Notable A)
Habitat: Various
Host plant: Ragworts, Senecio spp.
Overwintering: As adults
Food: Adults on leaves; larvae probably at/on roots.
Other notes: Adults in USA found to be parasitised internally by larvae of an unidentified hymenopteran. Oblong and slightly flattened. Similar to L. gracilis var. poweri, but note different head colour.
Habitat: Various
Host plant: Ragworts, Senecio spp.
Overwintering: As adults
Food: Adults on leaves; larvae probably at/on roots.
Other notes: Adults in USA found to be parasitised internally by larvae of an unidentified hymenopteran. Oblong and slightly flattened. Similar to L. gracilis var. poweri, but note different head colour.