Moore and Legner 1975: 422.
( CANADA: Alberta; UNITED STATES: California, Colorado, Utah).
Gnypeta boulderensis Casey 1911: 167. As synonym of G. helenae: Moore and Legner 1975: 422. ( UNITED STATES: Colorado). New synonymy.
Gnypeta punctatula Casey 1906: 194.
As synonym of G. helenae: Moore and Legner 1975: 422. ( UNITED STATES: California). New synonymy.