Brochymena hoppingi

Van Duzee

rough stink bug, tree stink bug

Brochymena hoppingi is a of rough stink bug in the Pentatomidae, native to North America. It belongs to a of arboreal stink bugs characterized by cryptic bark-like coloration and spiny pronotal margins. The species was originally described by Van Duzee and is one of approximately 20 species retained in the genus Brochymena following taxonomic revision.

Pronunciation

How to pronounce Brochymena hoppingi: //ˌbrɒkɪˈmiːnə ˈhɒpɪŋaɪ//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Brochymena hoppingi can be distinguished from the brown marmorated stink bug (Halyomorpha halys) by its uniformly dark without white bands, and by the presence of fine teeth along the margin of the pronotum. The lacks the contrasting antennal banding that characterizes Halyomorpha halys. As with other Brochymena species, it exhibits gray coloration with black and white or ivory speckling that provides camouflage against lichen-mottled bark. Species-level identification within Brochymena typically requires microscopic examination of genitalic structures.

Habitat

Arboreal; associated with trees and shrubs where it overwinters beneath loose bark or in other sheltered locations. Rough stink bugs in this are seldom found far from woody vegetation and do not typically aggregate on human structures in large numbers.

Distribution

North America. Specific range details for B. hoppingi are not well documented in available sources, though the Brochymena is to the New World with distributed across North America north of Mexico.

Seasonality

are active in spring and fall during from and entry into hibernation. They may be observed on warm, sunny winter days when temperatures permit activity. The has one annually in temperate climates, with development from to adult spanning an extended period.

Life Cycle

are laid in small clusters on twigs of trees. Nymphs progress through four instars before reaching adulthood. Development from egg to is prolonged, resulting in a single per year in temperate regions. Adults overwinter.

Behavior

Overwinters in the stage, typically remaining outdoors under loose bark or in other natural shelters rather than entering buildings. Adults fly well and may be encountered on fences, sidewalks, or other contrasting substrates when active. Like other Brochymena , B. hoppingi exhibits cryptic , blending with bark and lichen when at rest.

Ecological Role

Suspected to feed on plant sap of trees and shrubs. May occasionally be predatory or scavenging on other insects, as is common among many heteropteran . Serves as prey for various natural enemies including sand wasps (Bicyrtes quadrifasciata), birds, and fence lizards. are parasitized by platygastrid (Trissolcus brochymenae, Telenomus sp.) and eupelmid wasps (Anastatus reduvii). Feather-legged tachinid flies (Trichopoda spp.) parasitize .

Human Relevance

Not a pest . Does not invade homes in large like the brown marmorated stink bug. Occasionally enters structures with firewood. Harmless to humans and property; no economic or medical significance.

Similar Taxa

Halyomorpha halysBrown marmorated stink bug is easily confused with Brochymena but has white bands on the last two antennal segments and lacks teeth on the pronotal margin. Also differs in autumn on buildings.
Brochymena quadripustulataFour-humped stink bug shares the and general appearance; -level differentiation requires examination of subtle morphological characters.
Parabrochymena spp.Formerly included in Brochymena, this segregate can be distinguished by morphological characters detailed in Larivière (1992), including differences in male genitalia and pronotal structure.

More Details

Taxonomic history

Brochymena hoppingi was originally described by Van Duzee. The Brochymena was redefined by Larivière (1992) in a comprehensive revision that recognized 20 in the restricted genus and erected the new genus Parabrochymena for 10 former Brochymena species.

Cold tolerance

Brochymena are notably cold-hardy; individuals have been observed to survive extended freezing and resume activity upon thawing.