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Species Plagiognathus chrysanthemi - Trefoil Plant Bug

Plagiognathus from British Columbia (2) 10.07.12 - Plagiognathus chrysanthemi - female

Thistle Plant Bug 3 - Plagiognathus chrysanthemi

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 Cimicomorpha

Superfamily Miroidea

Family Miridae (Plant Bugs)

Subfamily Phylinae

Tribe Phylini

Subtribe Oncotylina

Genus Plagiognathus

Species chrysanthemi (Trefoil Plant Bug)

Explanation of Names

Plagiognathus chrysanthemi (Wolff 1804)

Size

♂ 3.60-4.18 mm, ♀ 3.18-3.52 mm(1)

Identification

Recognized by the greenish to greenish-yellow dorsum with black, weakly bristlelike setae and antennal segment 2 mostly pale with a dark base.

Easily confused with guttatipes, but distinguished by the form of the male genitalia; distributions also nonoverlapping. Also similar in coloration to cibbetsi and polhemorum, both those species with pale setae on the dorsum. Vesica with basal portion very strongly curved and with apical spines sinuously curving. Coloration of dorsum also similar to that of ribesi, but that species with a strong black transverse marking on membrane and with a black stripe on the dorsal surface of all femora. (1)

Range

native to, and widely distributed in, the Palaearctic, adventive in our area (NS-ON south to NY-MI in the east and MT-OR-n.CA in the west)(2)

Food

Variety of herbaceous annuals.

Internet References

adult and nymph images: UK(3) | Denmark(4)

Works Cited

1.	Revision of the New World Plagiognathus

2.	Schuh, R.T. 2002-2013. On-line Systematic Catalog of Plant Bugs (Insecta: Heteroptera: Miridae).

3.	Bantock T., Botting J. (2010‒) British Bugs, an online identification guide to UK Hemiptera

4.	Skipper L. (2003-2012) Danmarks Blomstertæger

Contributed by WonGun Kim on 6 August, 2009 - 8:17pm
Additional contributions by v belov
Last updated 2 February, 2015 - 8:13pm

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