Plagiognathus longirostris
This record describes Plagiognathus longirostris (species). Recorded family: Miridae. Recorded order: Hemiptera.
Identification and Appearance

Recognized by the castaneous to nearly black, elongate body, entirely pale white legs, pale antennae with segment 1 dark only at extreme base, and rostrum reaching well onto the abdomen. Most similar in general appearance and coloration to flavipes and modestus , but antennal segment 2 pale rather than dark as in flavipes ; differing from modestus by the more strongly projecting head and longer rostrum reaching well onto the abdomen.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
- Suborder
- Heteroptera
- Superfamily
- Miroidea
- Family
- Miridae (Plant Bugs)
- Subfamily
- Phylinae
- Tribe
- Phylini
- Genus
- Plagiognathus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
ne NA west to MB‒IA and south to KS‒IL
Diet and Behavior
Diet: Host: Most commonly found breeding on Corylus spp. (Betulaceae); also known to breed on Hamamelis virginiana (Hamamelidaceae).
Additional species information
Species notes from the sources
Etymology: Plagiognathus longirostris (Knight 1923)
About True Bugs, Cicadas, Hoppers, Aphids and Allies: the wider group
Order-level background for Hemiptera, the group containing Plagiognathus longirostris. 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 Plagiognathus longirostris (5)
Photo credits: Contributed by Ron M.; Additional contributions by v belov , onegunah
Frequently Asked Questions About Plagiognathus longirostris
What is Plagiognathus longirostris?
Plagiognathus longirostris is a species in the family Miridae, within the order Hemiptera.
How big is Plagiognathus longirostris?
♂ 3.5‒3.9 mm, ♀ 3.4‒3.7 mm
How do you identify Plagiognathus longirostris?
Recognized by the castaneous to nearly black, elongate body, entirely pale white legs, pale antennae with segment 1 dark only at extreme base, and rostrum reaching well onto the abdomen. Most similar in general appearance and coloration to flavipes and modestus , but antennal segment 2 pale rather than dark as in flavipes ; differing from modestus by the more strongly projecting head and longer rostrum reaching well onto the abdomen.
Where is Plagiognathus longirostris found?
Range: ne NA west to MB‒IA and south to KS‒IL
What does Plagiognathus longirostris eat?
The diet of the Plagiognathus longirostris includes Host: Most commonly found breeding on Corylus spp. (Betulaceae); also known to breed on Hamamelis virginiana (Hamamelidaceae)..
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