HemipteraRhyparochromidae – Dirt-colored Seed Bugs2 data sources

Pseudopachybrachius basalis

This record describes Pseudopachybrachius basalis (species). Recorded family: Rhyparochromidae. Recorded order: Hemiptera.

Identification and Appearance

Pseudopachybrachius basalis - Pseudopachybrachius basalis
Contributed by Brad Barnd; Additional contributions by Mike Quinn , John Schneider , v belov , onegunah

Posterior (apical) margin of corium pale or light brown; posterior femora with dark markings. Small, robust, stocky. Lateral corial margins completely pale and corium lacking a distinct post median transverse fascia. Oval pale spot present near inner apical and corial. Head, pronotum and scutellum dull black. Corium dull yellow with dark brown punctures.(emphasis added.) most records at lights Something is strange in the species as the reported chromosome numbers differ (Merrill Sweet, pers. comm.)

Wikipedia reference for Pseudopachybrachius basalis: http://en.wikipedia.org/wiki/Pseudopachybrachius_basalis.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder
Heteroptera
Superfamily
Lygaeoidea
Family
Rhyparochromidae (Dirt-colored Seed Bugs)
Subfamily
Rhyparochrominae
Tribe
Myodochini
Genus
Pseudopachybrachius

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Habitat

Most abundant where Panicum grasses are common

Geographic Range

e. NA (QC-FL to KS-TX-NM) to Panama - Map

Diet and Behavior

Diet: most frequently on grasses and other monocots (BG data)

Life History

In Connecticut, there are 2 generations and adults overwinter

Additional species information

Species notes from the sources

Etymology: Pseudopachybrachius basalis (Dallas 1852)

About True Bugs, Cicadas, Hoppers, Aphids and Allies: the wider group

Order-level background for Hemiptera, the group containing Pseudopachybrachius basalis. 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.

Explore Hemiptera families and species →

Photos of Pseudopachybrachius basalis (2)

Pseudopachybrachius basalis - photo 1
Contributed by Brad Barnd; Additional contributions by Mike Quinn , John Schneider , v belov , onegunah
Pseudopachybrachius basalis - photo 2
Contributed by Brad Barnd; Additional contributions by Mike Quinn , John Schneider , v belov , onegunah

Photo credits: Contributed by Brad Barnd; Additional contributions by Mike Quinn , John Schneider , v belov , onegunah

Frequently Asked Questions About Pseudopachybrachius basalis

What is Pseudopachybrachius basalis?

Pseudopachybrachius basalis is a species in the family Rhyparochromidae, within the order Hemiptera.

How big is Pseudopachybrachius basalis?

3.5-4.5 mm

How do you identify Pseudopachybrachius basalis?

Posterior (apical) margin of corium pale or light brown; posterior femora with dark markings. Small, robust, stocky. Lateral corial margins completely pale and corium lacking a distinct post median transverse fascia. Oval pale spot present near inner apical and corial. Head, pronotum and scutellum dull black. Corium dull yellow with dark brown punctures.(emphasis added.)

Where is Pseudopachybrachius basalis found?
FeatureDetails
HabitatMost abundant where Panicum grasses are common
Rangee. NA (QC-FL to KS-TX-NM) to Panama - Map
What does Pseudopachybrachius basalis eat?

The diet of the Pseudopachybrachius basalis includes most frequently on grasses and other monocots (BG data).

What is the life cycle of a Pseudopachybrachius basalis?

In Connecticut, there are 2 generations and adults overwinter

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by Brad Barnd; Additional contributions by Mike Quinn , John Schneider , v belov , onegunah. Contributors retain copyright over their individual contributions.