Tortoise Bug
Eurygaster (cf) testudinaria
This record describes Eurygaster (cf) testudinaria (genus). Recorded family: Scutelleridae. Recorded order: Hemiptera.
Identification and Appearance
Length 9 to 11 mm. A fairly large shieldbug, the two Eurygaster species are often known as Tortoise Bugs. The ground colour and intensity of the markings are variable. In adult Eurygaster maura the second antennal segment is approximately twice as long as the third, whereas in adult Eurygaster testudinaria the second antennal segment is less than twice as long as the third segment; genital examination may be necessary. Because it requires detailed examination to eliminate E. maura we have designated most records this species as Eurygaster (cf) testudinaria (meaning 'likely to be'). Nymphs feed on grasses between May and August, becoming adult from July. Previously uncommon, it is now widespread in southern Britain and Ireland in and is expanding its range northwards.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
- Suborder
- Heteroptera
- Superfamily
- Pentatomoidea
- Family
- Scutelleridae (Shield-backed Bugs)
- Subfamily
- Eurygastrinae
- Genus
- Eurygaster
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
Dry and damp grasslands.
Seasonal Activity
Adult: All year
Diet and Behavior
Life History
Nymphs feed on grasses between May and August, becoming adult from July.
Additional species information
Recorded status
Previously uncommon, it is now widespread in southern Britain and Ireland in and is expanding its range northwards.
About True Bugs, Cicadas, Hoppers, Aphids and Allies: the wider group
Order-level background for Hemiptera, the group containing Eurygaster (cf) testudinaria. 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 Tortoise Bug (7)
Frequently Asked Questions About Tortoise Bug
What is Tortoise Bug?
Tortoise Bug (Eurygaster (cf) testudinaria) is a genus in the family Scutelleridae, within the order Hemiptera.
How big is Tortoise Bug?
9 to 11 mm. A fairly large shieldbug, the two Eurygaster species are often known as Tortoise Bugs. The ground colour and intensity of the markings are variable. In adult Eurygaster maura the second antennal segment is approximately twice as long as the third, whereas in adult Eurygaster testudinaria the second antennal segment is less than twice as long as the third segment; genital examination may be necessary. Because it requires detailed examination to eliminate
Where is Tortoise Bug found?
Habitat: Dry and damp grasslands.
When is Tortoise Bug active?
Tortoise Bug: seasonal activity - Adult: All year.
What is the life cycle of a Tortoise Bug?
Nymphs feed on grasses between May and August, becoming adult from July.