Capsus diaphanus Kirschbaum, 1856: 238, 305. STS: male, female, Germany, Mombach; MWNH.
Capsus (Orthotylus) viridinervis (non Kirschbaum, 1856): Thomson, 1871d: 439. Misidentification (see Reuter, 1882g: 64).
Orthotylus ulmi Knight, 1927c: 179 (syn. Schwartz, 1998: 283). HT: male, USA, Minnesota, St. Paul; USNM.