Nysius senecionis
This record describes Nysius senecionis (species). Recorded family: Lygaeidae. Recorded order: Hemiptera.
Identification and Appearance
Length 4 to 5 mm. Nysius senecionis has the 2nd antennal segment pale with a dark ring at the base and the wing membrane is usually clear and unmarked. It is separated from the very similar N. graminicola by the shorter 1st segment of the hind tarsus, which is less than the combined length of the 2nd and 3rd segments (including claws). In addition, the matt area of the metapleuron is extensive. Detailed examination of the specimen is recommended; a field photograph may not be adequate because the key features are small or hidden. Ensure the antennae, hind tarsi and the metapleuron are clearly visible in your photos. Note habitat. It is associated with a range of composites such as Ragwort and Fleabane. Widely scattered (ref: British Heteroptera checklist 2021 , on British Bugs website). A fairly recent arrival in Britain, first recorded in 1992 and now widespread and common in much of southern Britain as far north as Yorkshire. https://www.britishbugs.org.uk/heteroptera/Lygaeidae/Nysius_senecionis.html
Classification
Habitat and Range
Habitat
It is associated with a range of composites such as Ragwort and Fleabane.
Seasonal Activity
Adult: All year.
Additional species information
Recorded status
Widely scattered (ref:
About True Bugs, Cicadas, Hoppers, Aphids and Allies: the wider group
Order-level background for Hemiptera, the group containing Nysius senecionis. Species-specific details appear above.
Group overview
Hemiptera (true bugs) includes over 80,000 described species across cicadas, aphids, leafhoppers, shield bugs, and bed bugs. Aphids alone cost global agriculture an estimated $2.5 billion annually in crop losses.
Ecological role of the group
Many Hemiptera are essential food sources for birds and predatory insects. Cicadas provide massive nutrient pulses during emergence events - a single Brood X emergence can involve trillions of individuals across 15 states.
Economic and practical significance of the group
The brown marmorated stink bug (Halyomorpha halys) caused $37 million in apple crop losses in a single year in the U.S. Mid-Atlantic region. Bed bug infestations in the U.S. increased by 500% between 2001-2010, costing the hotel industry hundreds of millions annually.
Recorded sources for this group: USDA, EPA, University research. Imported estimates may describe particular regions or reporting periods.
Photos of Nysius senecionis (10)
Frequently Asked Questions About Nysius senecionis
What is Nysius senecionis?
Nysius senecionis is a species in the family Lygaeidae, within the order Hemiptera.
How big is Nysius senecionis?
4 to 5 mm.
Where is Nysius senecionis found?
Habitat: It is associated with a range of composites such as Ragwort and Fleabane.
When is Nysius senecionis active?
Nysius senecionis: seasonal activity - Adult: All year..