Version of manually-generated dot map displayed above, showing U.S. and Canadian records, was harvested from SINA on Aug-05-2018.Dots show U.S. county records and Canadian records; shading shows likely general distribution.
See also this computer-generated U.S. distribution map, produced in 2003 from records in a
database available on the Singing Insects of North America site.This European katydid was discovered in Montreal in ca 1950 and from there spread into northeastern U.S. Then, in 2003, David Eades reported it to be well established in northeastern Illinois. For some years there were no records for the extensive area between New York and Illinois but recently the gap has been filled by records from Indiana and Ohio by Carl Strang, Philip Chaon, and Scott Namestnik. Furthermore, contributors to
BugGuide have extended the range into Wisconsin and eastern Iowa. Details for the county records in the above map are in a SINA
database. Wesley Teats recently (2013) reported the record from Rockingham County, Virginia.
