Acalitus plicans (Nalepa, 1917)

Type data. Fagus sylvatica L. ( Fagaceae); Austria

Host plant records from Latvia. Fagus sylvatica L. ( Fagaceae).

Relation to plant host. Gall-making, erineum (Rupais 1999).

Bibliographical records from Latvia. Acalitus plicans — Rupais et al. 2014; Eriophyes plicans — Rupais 1964; Shevchenko & Rupais 1964; Bērziņš 1970b; Rupais 1976 a, 1976b; Rupais & Kalniņa 1979; Rupais 1981, 1999; Plīse 2007.

Distribution in Latvia. Frequently abundant (Rupais 1976b; Rupais & Kalniņa 1979).

Acalitus rudis (Canestrini, 1890)

Type data. Betula nana L. ( Betulaceae); Italy.

Host plant records from Latvia. Betula pendula Roth., Betula pubescens Ehrh. (Betulaceae) .

Relation to plant host. Gall-making, reddish erineum on under leaf surface, vagrant (Hellrigl 2003; Skoracka et al. 2005).

Bibliographical records from Latvia. Acalitus rudis — Rupais et al. 2014; Aceria rudis — Shevchenko & Rupais 1964; Rupais 1976 a, 1976b, 1999; Plīse 2007; Eriophyes rudis — Eglītis 1956, 1957 .

Distribution in Latvia. Frequently abundant according to Rupais (1976 a, 1976b).

Acalitus stenaspis (Nalepa, 1891)

Type data. Fagus sylvatica L. ( Fagaceae); Austria.

Host plant records from Latvia. Fagus sylvatica L. ( Fagaceae).

Relation to plant host. Gall-making, vagrant (Rupais 1999; Skoracka et al. 2005).

Bibliographical records from Latvia. Acalitus stenaspis — Rupais et al. 2014; Aceria stenaspis — Rupais 1976 a, 1976b; Eriophyes stenaspis — Eglītis 1956; Rupais 1959c, 1960b, 1962, 1964; Shevchenko & Rupais 1964; Bērziņš 1970b; Rupais 1981, 1999; Plīse 2007.

Distribution in Latvia. Rupais (1999) reported this species as rare.