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Fall Fund Drive


Species Janus integer - Currant Stem Girdler

Wood Wasp, Horntail ??? - Janus integer - male - female Sawfly - Janus integer
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon ("Symphyta" - Sawflies, Horntails, and Wood Wasps)
Family Cephidae (Stem Sawflies)
Tribe Hartigiini
Genus Janus
Species integer (Currant Stem Girdler)
Other Common Names
gooseberry-Currant Stem Girdler
Explanation of Names
Author: Norton
Larvae bore Ribes stems. It eats, or girdles, the tips of new shoots causing them to die and fall off.
Life Cycle
Adults emerge from the middle to the last of May in New York. The female punctures a cane a few inches from the tip and inserts an egg into the pith. Eggs are yellowish-white elongate ovals. Eggs hatch in about eleven days. They become full-grown about the first of September. Hibernate as larvae wrapped in a silken cocoon. Pupate in early spring and emerge a few days later
The introduced ichneumonid Collyria coxator is used as biocontrol.