Harmostes angustatus

Van Duzee, 1918

Harmostes angustatus is a scentless plant bug in the Rhopalidae, first described by Van Duzee in 1918. It belongs to a characterized by reduced , distinguishing them from other true bugs. The has been documented as prey for the solitary Dryudella, representing a known -prey relationship in arid western North American .

Pronunciation

How to pronounce Harmostes angustatus: /hɑrˈmɒstiːz æŋˈɡʌsteɪtəs/

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Identification

As a member of Harmostes, this lacks the well-developed typical of many Heteroptera, though this trait requires close examination to verify. Species-level identification within Harmostes relies on subtle morphological features of the pronotum, connexival margins, and male genitalia that are not consistently documented in available sources.

Habitat

Arid and semi-arid environments; associated with desert scrub and open drylands in the southwestern United States.

Distribution

North America (southwestern United States, specifically Nevada) and Central America (Mexico).

Ecological Role

Documented prey item for in the Dryudella ( Crabronidae, Astatinae); females of these wasps paralyze and provision nests with true bugs including scentless plant bugs.

Similar Taxa

  • Other Harmostes speciesShare the diagnostic trait of reduced and similar overall body plan; require examination of genitalic structures and precise measurements for separation.
  • Other RhopalidaeLarger rhopalids typically possess more prominent openings; Harmostes are generally smaller with more subtle patterning.

More Details

Predation record

A female Dryudella was photographed in Tucson, Arizona on May 8, 2010, carrying a paralyzed Harmostes angustatus as prey. This observation confirms the as a for these solitary wasps, which are nesters provisioning burrows with paralyzed true bugs.

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Sources and further reading