Figs. 19, 21, 31, 61, 62.
Tryphon clypeatus Zetterstedt, 1838: 399. Holotype ♀, MZLU [examined]. Type locality: Sweden (Lapland). Lathrolestes eriocraniae Seyrig, 1928: 201. Holotype ♀, MNHN [not examined]. Type locality: France.
Material. 2 ♀, DENMARK, Strandmølle, Boserup, ZMUC; 3 ♂, DENMARK, Sjaelland, Korsør, ZMUC; 1 ♀, FINLAND, Lappland, Enontekis, mt. Saana, 27.vi. 1962, leg. K.Åhman, (ZMUT, Jussila coll.); 1 ♀, FINLAND, Lappland, mt. Siilaskoski, 27.vi. 1962, leg. K.Åhman, (ZMUT, Jussila coll.); 1 ♀, FINLAND, Turku, Paattinen, Krouvintie, 92 6787: 3244, Malaise trap, 1 – 31.5.2004, leg. R. Jussila leg., (ZMUT, Jussila coll.); 1 ♀, NORWAY, Troms, Storfjord, Skibotn, 29.vi. 1962, leg. M.Meinander, (ZMUT, Jussila coll.); 1 ♀, NORWAY, Sør-Trøndelag, Oppland, Kongsvoll, Raubekken, 900m., Øvre, Malaise trap, 03.VII. 1980, leg. J. O. Solem, (NTNU); 1 ♀, NORWAY, Hedmark, Stor-Elvdal, Solbakken, Malaise trap, 24.VI. 1986, leg. E. Stur, (NTNU); 1 ♀, NORWAY, Akerhus, Fetsund, Asak grustak, 25.V. 2007, leg. O. Sørlibråten, (ZMUN); 5 ♀, SWEDEN, Stockholm, NHRS; 10 ♀, SWEDEN, Torne lappmark, Torneträsk, leg. R.Malaise, NHRS; 11 ♀, SWEDEN, Lappland, NHRS; 1 ♀, SWEDEN, Småland, Nybro kommun, Bäckebo, Grytsjöns naturreservat, Old moisty haymaking meadow in forest edge N 6311678 E 1517066 (=TrapID 1001), 18.v– 15.vi. 2006 (=coll. event ID 1728), leg. SMTP, NHRS; 1 ♀, SWEDEN, Uppland, Norrtälje kommun, Svartlöga, Matkrok, Maritime deciduous wood. N 59 ° 34.167´E 19 °03.180´(=Trap ID 26), 27.v– 26.vi. 2005 (=coll. event ID 1690), leg. SMTP, NHRS; 1 ♂, SWEDEN, Uppland, Älvkarleby kommun, Marma skjutfält, dry meadow with birch, N 60 ° 31.456´E 17 ° 27.089´(Trap ID 6), 06.xii. 2004 – 03.vi. 2005 (=coll. event ID 1578), leg. SMTP, NHRS; 2 ♀, UK, Scotland, Amat, Easter Ross, NH 4689 Malaise trap, native pinewood, 5.89 I. MacGowan, NMSZ, 1992.144; 1 ♀, UK, Lancashire, Silverdale, Gait Barrows National Nature Reserve, 13.v. 1989, leg. M.R.Shaw, RSME; 11 ♀, UK, 5 ♂, Cumbria, Witherslack, Strickland Hill, ex. Eriocrania semipurpurella / haworthi, 1958 - 24.iv. 1959, leg. J. Heath, RSME.
Diagnosis. This species differs from other species of the genus by the following character states: 1) clypeus strongly projecting anteriorly, 2) clypeus separated from face by a distinct transverse groove, 3) occipital carina complete, 4) apical lateral fields of propodeum absent, 5) ovipositor up-curved.
Distribution. Denmark *, Finland, France, Germany, Ireland, Lithuania, Netherlands, Norway, Poland, Russia (Arkhangelskaya Oblast, Khabarovsky Kray, Leningradskaya Oblast), Sweden, UK.