In synonymy:
Palaeolinyphia Wunderlich, 1986 = Jalapyphantes Gertsch & Davis, 1946 (Silva-Moreira & Hormiga, 2021: 909, by S of the type species, removed from S of Selenyphantes contra Platnick, 1993c: 349)

type Jalapyphantes cuernavaca Gertsch & Davis, 1946; gender masculine

N.B.: Palaeolinyphia Wunderlich, 1986: 83 [urn:lsid:nmbe.ch:spidergen:05344] (type P. flagellifera Wunderlich, 1986, from Dominican amber) was considered a senior synonym of Selenyphantes by Platnick, 1993c: 349 because of Wunderlich's transfer of Lephthyphantes longispinosus to Palaeolinyphia; Moreira & Hormiga, 2021: 909 synonymized the type species of Palaeolinyphia (P. flagellifera Wunderlich, 1986) with Jalapyphantes minoratus and therefor in fact, but not explicitly, Palaeolinyphia with Jalapyphantes.

Jalapyphantes cuernavaca Gertsch & Davis, 1946: 9, f. 17-18 (Dmf).
Jalapyphantes cuernavaca Millidge, 1984b: 237, f. 12, 29 (f).
Jalapyphantes cuernavaca Silva-Moreira & Hormiga, 2021: 905, f. 4A-H, 5A-H, 14A, 15A, 16A, 17A (mf).

Jalapyphantes minorata Gertsch & Davis, 1946: 8, f. 15 (Df).
Jalapyphantes minoratus Brignoli, 1983c: 295.
Jalapyphantes minoratus Silva-Moreira & Hormiga, 2021: 908, f. 6A-H, 7A-H, 14B, 15B, 16B, 17B, 21A-E, 41A-B (Dm, f, S of Selenyphantes (formerly Palaeolinyphia) flagellifera from Dominican amber).

Jalapyphantes obscurus Millidge, 1991: 70, f. 234-235 (Df).
Jalapyphantes obscurus Silva-Moreira & Hormiga, 2021: 914, f. 8A-G, 9A-H, 14C, 15C, 16C, 17C, 19A-H (Dm, f).

Jalapyphantes puebla Gertsch & Davis, 1946: 8, f. 16 (Df).
Jalapyphantes puebla Silva-Moreira & Hormiga, 2021: 919, f. 10A-H, 11A-H, 14D, 15D, 16D, 17D, 18F, 20A-B, 21F-G (Dm, f).

Jalapyphantes tricolor Silva-Moreira & Hormiga, 2021: 925, f. 12A-H, 13A-H, 14E, 15E, 16E, 17E, 20C-H (Dmf).