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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 Sinea

-Spiny Assassin Bug (Sinea spinipes)


This insect hides in plant foliage or on flowers, waiting for an insect to pass by it. The strong front legs grab the prey and a long fang at the mouth repeatedly stabs the insect to death with rapid piercing movements.

Spiny Assassin Bug

Sinea spinipes

Diet

  • Adults and nymphs: Predatory, feeding on a variety of other insects and small arthropods.

  • They use their piercing-sucking rostrum to stab prey and inject saliva that immobilises and begins digesting the prey before the liquefied contents are consumed.

Range

  • Sinea spinipes belongs to the family Reduviidae, subfamily Harpactorinae, tribe Harpactorini, and genus Sinea.

  • Around Zihua, it would likely be considered occasional. 

Habitat

  • S. spinipes occurs in open fields, grassy and weedy areas, woodland borders and forested areas.

  • A detailed life-history study found adults and nymphs on vegetation along roadsides within forests, in open fields beneath or near scattered trees, and along forest edges.

  • It appears to favour shaded vegetation, particularly foliage along woodland margins and within forests.

  • Around Zihua, potential habitat would include tropical dry-forest edges, shaded scrub, roadsides, gardens and areas of dense low vegetation where suitable insect prey is abundant.

Size

  • Adults are approximately 12–15 mm long.

  • The body is elongated and somewhat robust, with the long legs and antennae typical of Harpactorini.

  • The front legs are prominently spined, while the front femora are thickened, granulated and also armed with spines. These features are characteristic of Sinea.

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