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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » True Bugs, Cicadas, Hoppers, Aphids and Allies (Hemiptera) » True Bugs (Heteroptera) » Pentatomomorpha » Leatherbugs (Coreoidea) » Leaf-footed Bugs (Coreidae) » Coreinae » Hypselonotini » Squash Bugs (Anasa) » Squash Bug (Anasa tristis)

Species Anasa tristis - Squash Bug

Classification · Explanation of Names · Size · Identification · Range · Food · Life Cycle · Remarks · Internet References · Works Cited

Stink bug or Squash bug? - Anasa tristis

A different Halyomorpha? - Anasa tristis

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Subphylum Hexapoda (Hexapods)

Class Insecta (Insects)

Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)

Suborder Heteroptera (True Bugs)

Infraorder Pentatomomorpha

Superfamily Coreoidea (Leatherbugs)

Family Coreidae (Leaf-footed Bugs)

Subfamily Coreinae

Tribe Hypselonotini

Genus Anasa (Squash Bugs)

Species tristis (Squash Bug)

Explanation of Names

Anasa tristis (De Geer 1773)

tristis 'sad'

Size

adult 14‒16 mm

Identification

Adults mottled dark gray to blackish above except pale medial line on head, pale lateral edges of pronotum, connexivium with equally-spaced pale patches.

Range

transcontinental, BC‒NB to Brazil(1)(2)

Food

Hosts: Cucurbitaceae (prefers pumpkin and squash)

Life Cycle

Eggs laid in clusters of ~20, usually on the undersides of leaves; lifecycle completes in 6‒8 weeks; one generation in the north, two or more in the south.

life stages:

Remarks

the most injurious coreid in FL(3), causes wilting/blackening of leaves; can transmit cucurbit yellow vine disease

Trichopoda pennipes is a notable parasite (lays eggs on adults)

Internet References

Fact sheet (Capinera 2017)(4)

Works Cited

1.	Checklist of the Hemiptera of Canada and Alaska Maw, H.E.L., R.G. Foottit, K.G.A. Hamilton and G.G.E. Scudder. 2000. NRC Research Press.

2.	Catalog of the Coreidae, or Leaf-Footed Bugs, of the New World Richard Packauskas. 2010. Fort Hays State University.

3.	Coreidae of Florida (Hemiptera, Heteroptera). Baranowski, R.M. and J.A. Slater. 1986. Arthropods of Florida and Neighboring Land Areas. Vol. 12, no. 630. viii + 82 pp.

4.	University of Florida: Featured Creatures

Contributed by Hannah Nendick-Mason on 31 July, 2006 - 6:50pm
Additional contributions by Beatriz Moisset, Robin McLeod, Mike Quinn, v belov
Last updated 21 August, 2024 - 8:54pm

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