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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)​

-​Cimicomorph Bugs (Superfamily Reduvioidea)

-​Assassin Bugs (Family Reduviidae)

-​Subfamily Harpactorinae

-Tribe Harpactorini

-Genus Zelus

-Zelus cervicalis


Zelus cervicalis is a slender, predatory assassin bug in the family Reduviidae, found in warm regions of the Americas, including Mexico. Like other members of the genus Zelus, it is an active hunter that preys on a wide variety of small insects. A key adaptation of Zelus bugs is the presence of sticky secretions on their forelegs, which they use to trap prey. Once captured, the bug uses its piercing rostrum to inject enzymes that immobilize and digest the prey internally.

Zelus cervicalis

Zelus cervicalis

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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