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Info
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Species Anasa tristis - Squash Bug

Squash Bug nymph - Anasa tristis Squash Bug ? - adult - Anasa tristis Three Legged Bug - Anasa tristis Squash bug egg mass - Anasa tristis Front porch bug - Anasa tristis unidentified Heteroptera - Anasa tristis squash bug? - Anasa tristis squash bug? - 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 Coreini
Genus Anasa (Squash Bugs)
Species tristis (Squash Bug)
Synonyms and other taxonomic changes
Anasa tristis (De Geer)
Orig. Comb: Cimex tristis De Geer 1773
Explanation of Names
tristis (L). 'sad' (1)
Identification

Pronotum and basal half of front wings speckled with brown; side-margins of pronotum yellowish; hind femora spineless. Eggs oval, pale yellowish to dark, laid in irregular clusters, usually on underside of leaves.(2)
Range
e NA to CA / Mex. to S. Amer. (3)
Season
summer-fall (BG data)
Food
Hosts: various cucurbits (members of the squash family), prefers pumpkin and squash
Life Cycle
Eggs laid in clusters of ~20, usually on the undersides of leaves. Completes life cycle in 6-8 weeks; one generation in the north, two or more in the south.
Eggs, nymphs, adult:
Remarks
the most injurious coreid in FL(4)
causes wilting and blackening of leaves; can transmit cucurbit yellow vine disease
among parasites attack them, the tachinid Trichopoda pennipes is notable (lays eggs on adults)
Works Cited
1.Dictionary of Word Roots and Combining Forms
Donald J. Borror. 1960. Mayfield Publishing Company.
2.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.
3.Catalog of the Heteroptera, or True Bugs of Canada and the Continental United States
Thomas J. Henry, Richard C. Froeschner. 1988. Brill Academic Publishers.
4.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.
5.Utah State University Cooperative Extension Publications