Seining watercourses, a new method for collecting flat bugs? (Hemiptera, Heteroptera, Aradidae) Author Heiss, Ernst Author Barr, Cheryl text Linzer biologische Beiträge 2017 2017-07-28 49 1 131 145 journal article 10.5281/zenodo.5356488 0253-116X 5356488 Aradus antennalis PARSHLEY , 1921 ( Photo 3 , Fig. 8) M a t e r i a l e x a m i n e d:13, 29.VI.1991 ; 13, 25.IV.1992 ; 13, 22.V.1994 ; 13, 27.V.2016 ( 4 specimens ). This species is recorded so far only from the western states of California, Idaho, and Washington, the midwestern state of Nebraska, and British Columbia in Canada . It was formerly confused with Aradus kormilevi HEISS, 1980 , which is widely distributed in eastern USA and Canada .