Criomorphus albomarginatus agg.
This record describes Criomorphus albomarginatus agg. (species). Recorded family: Delphacidae. Recorded order: Hemiptera.
Identification and Appearance
Length 2 to 4 mm. This is a difficult genus and examination of male genitalia is needed to separate the 3 species. Criomorphus albomaginatus has a rear genital segment that is approximately triangular in rear view. The frons (face) has 2 median keels throughout which are white and prominent in C albomarginatus and C williamsi . The forewings have pale tips. Both brachypterous and macropterous forms exist. There are several similar species; Florodelphax spp. also have white tips to forewings Can only be verified to species by examination of internal genital structure and external genital segment of males. Photographs from top down, of underside and of face, showing keels, will support ID Criomorphus albomarginatus is Common; C moestus and C williamsi are both Notable B (ref.: UK Auchenorrhyncha checklist 2021) Occasional, but rarely recorded to species https://www.britishbugs.org.uk/homoptera/Delphacidae/Criomorphus_albomarginatus.html
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Hemiptera
- Family
- Delphacidae
- Genus
- Criomorphus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
A variety of grassland habitats.
Seasonal Activity
April to August.
Additional species information
Recorded status
Criomorphus albomarginatus
About True Bugs, Cicadas, Hoppers, Aphids and Allies: the wider group
Order-level background for Hemiptera, the group containing Criomorphus albomarginatus agg.. 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 Criomorphus albomarginatus agg. (4)
Frequently Asked Questions About Criomorphus albomarginatus agg.
What is Criomorphus albomarginatus agg.?
Criomorphus albomarginatus agg. is a species in the family Delphacidae, within the order Hemiptera.
How big is Criomorphus albomarginatus agg.?
2 to 4 mm. This is a difficult genus and examination of male genitalia is needed to separate the 3 species.
Where is Criomorphus albomarginatus agg. found?
Habitat: A variety of grassland habitats.
When is Criomorphus albomarginatus agg. active?
Criomorphus albomarginatus agg.: seasonal activity - April to August..