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For Insects, Spiders & Their Kin
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Species Triarthria setipennis

Representative Images

The Finished Product - Triarthria setipennis - male fly - Triarthria setipennis Calyptrate fly - tachinid? - Triarthria setipennis Calyptrate fly - tachinid? - Triarthria setipennis Small gray tachinid - Triarthria setipennis Triarthria setipennis? - Triarthria setipennis Tachinid Fly - Triarthria setipennis Tachinid Fly - Triarthria setipennis

Classification

Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon (Calyptratae)
Superfamily Oestroidea
Family Tachinidae (Parasitic Flies)
Subfamily Tachininae
Tribe Bigonichetini
Genus Triarthria
Species setipennis (Triarthria setipennis)

Synonyms and other taxonomic changes

Tachina setipennis Fallén, 1810
Tachina spinipennis Meigen, 1824

Explanation of Names

Possibly named after the rows of bristles along veins R1 and R4+5.

Identification

Arista with three nearly equal segments (see Manual of Nearctic Diptera page 1231 figure 132). Face with downcurved bristles well separated from frontal bristles. Vein M with obtuse bend similar to Siphonini. R1 and R4+5 hairy along most of length. Antenna sometimes orange near insertion of arista. Abdomen with discal and marginal bristles on tergites 3-5, none on tergite 1+2.

Remarks

Introduced to Portland, Oregon in the 1920s to control the European earwig Forficula auricularia. Widespread in northern USA and southern Canada.

Print References

Mote, Don C. 1931. The introduction of the Tachinid parasites of the European earwig in Oregon. Journal of Economic Entomology 24:948-956

Internet References

Canadian Entomologist. Biology of Triarthria setipennis (Fallen) (Diptera: Tachinidae), a native parasitoid of the European earwig, Forficula auricularia L. (Dermaptera: Forficulidae), in Europe
Biocontrol Science and Technology. Biology and host range testing of Triarthria setipennis and Ocytata pallipes (Diptera: Tachinidae) for the control of the European earwig (Forficula auricularia)