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True Bugs of Zihuatanejo

SUBORDER HETEROPTERA

-Animals (Kingdom Animalia)

-Arthropods (Phylum Arthropoda)

-Hexapods (Subphylum Hexapoda)

-Insects (Class Insecta)

-Winged and Once-winged Insects (Subclass Pterygota)

-​True Bugs, Hoppers, Aphids, and Allies (Order Hemiptera)

-True Bugs (Suborder Heteroptera)​

-Pentatomomorph Bugs (Infraorder Pentatomomorpha)

-Superfamily Pentatomoidea​​

-Stink Bugs (Family Pentatomoidae)​​

-Subfamily Pentatominae

-Tribe Carpocorini

-Brown Stink Bugs (Genus Euschistus)

-Brown Stink Bug (Euschistus servus)


Euschistus servus, commonly known as the brown stink bug or harvest stink bug, is a species of stink bug in the family Pentatomidae. It is recognized for its pest status in agricultural settings, particularly in soybean and corn crops. Its body is light brown to tan with a somewhat shiny appearance. The back is often smooth with some darker spots on the edges. As a typical stink bug, Euschistus servus produces a foul-smelling chemical from specialized glands located near its abdomen when it is disturbed or threatened. This odor serves as a deterrent to predators.

Brown Stink Bug

Euschistus servus

Diet

  • Adults: Feed by piercing plant tissues with their straw-like mouthparts and sucking plant sap from leaves, stems, buds and developing fruits.

  • Nymphs: Also feed on plant juices and generally remain associated with suitable host plants throughout their development.

Range

  • Acanthocephala alata is a leaf-footed bug (Coreidae) in the subfamily Coreinae, tribe Acanthocephalini, genus Acanthocephala.

  • The species occurs in Mexico and Central America, particularly in tropical and subtropical environments.

  • It is occasionally sighted in Zihua, where suitable tropical vegetation provides habitat.

  • Its relatively large size makes it conspicuous when encountered, although its brown colouration can provide excellent camouflage among branches and dried vegetation.

Habitat

  • Found in tropical dry forest, tropical deciduous forest, woodland, scrub, forest edges, gardens and agricultural areas.

  • Adults and nymphs are usually found on shrubs, vines and trees, particularly where young shoots, flowers or developing fruits are present.

  • In Zihua, check stems and branches as well as leaves, since these bugs can remain motionless and blend into the vegetation.

  • Adults may also occasionally be attracted to lights at night.

Size

  • Adult length: approximately 15–25 mm (0.6–1.0 in).

  • Body elongated and robust, with the characteristic expanded hind tibiae of leaf-footed bugs.

  • Generally brown, reddish-brown or dark brown, sometimes with contrasting lighter markings.

  • The head and thorax bear prominent spines and angular projections, giving Acanthocephala its distinctive “spine-headed” appearance.

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