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Two new eriophyid mite species associated with Clematis terniflora var. mandshurica, namely Aculops jilinensis sp. n. and Phyllocoptes terniflores sp. n., are described. Both species infest the tender leaves of host plants, inducing severe curling and blistering.

Three new species of eriophyoid mites from Xinjiang Uygur Autonomous Region, China, are described and illustrated. They are Paracolomerus gonglius sp. n. and Phyllocoptruta beggerianae sp. n. collected on Rosa beggeriana Schrenk ex Fisch. & C. A. Mey. (Rosaceae), and Rhyncaphytoptus fuyuniensis sp. n. collected on Cotoneaster ignavus E. L. Wolf (Rosaceae). All eriophyoid mites described here are vagrants on the undersurface of leaves and any apparent damage was not observed.

In this paper, three new species of eriophyoid mites in the family Eriophyidae associated with Phoebe hunanensis Hand.–Mazz. (Lauraceae), namely Gammaphytoptus striatilobus sp. n., Phyllocoptes setalsolenidion sp. n., and Dechela phoebe sp. n. are described and illustrated. All are vagrants causing no apparent damage to the same host plants.

Eriophyoid mites from Qinghai Province, northwestern China were studied herein. Up to now, only six species have been reported from Qinghai Province. In field surveys, 17 eriophyoid mite species were collected, among which nine species were found new to science. The new species and their host plants are listed as follows: Acaphyllisa tuberculumae sp. n. on Populus sp. (Salicaceae); Proiectus xiningensis sp. n. on Pinus sp. (Pinaceae); Phyllocoptes beishaniensis sp. n. on Spiraea mongolica Maxim. (Rosaceae); Tetra pruniana sp. n. on Prunus tomentosa Thunb. (Rosaceae) Rupr. (Berberidaceae); Tetra pyriana sp. n. on Pyrus calleryana Decne. (Rosaceae); Tetra simonia sp. n. on Populus simonii Carr. (Salicaceae); Diptacus berberinus sp. n. on Berberis amurensis Rupr. (Berberidaceae); Diptacus mengdaensis sp. n. on Lonicera elisae Franch. (Caprifoliaceae); Rhyncaphytoptus spinus sp. n. on Lonicera rupicola Hook. f. et Thoms. (Caprifoliaceae). Aculops ulmi Hong & Xue, 2005 was re-described.

Nine eriophyoid mites, including two new species and five new records, from Iran are described and illustrated. They are Aceria acroptiloni Shevchenko & Kacalev, 1974, rec. n. on Rhaponticum repens (L.) Hidalgo (Asteraceae); Aceria anthocoptes (Nalepa, 1892), rec. n. on Cirsium arvense (L.) Scop. (Asteraceae); Aceria lactucae (Canestrini, 1893), rec. n. on Lactuca virosa L. (Asteraceae); Aceria pulicaris sp. n. on Pulicaria gnaphalodes (Vent.) Boiss. (Asteraceae); Aceria tosichella Keifer, 1969 on Setaria viridis (L.) Beauv. (Poaceae); Eriophyes rotundae Mohanasundaram, 1983 on Cyperus rotundus L. (Cyperaceae); Aculops maroccensis Keifer, 1972, rec. n. on Mentha piperita L. (Lamiaceae); Aculus medicager sp. n. on Medicago sativa L. (Leguminosae); Tetra lycopersici Xue & Hong, 2005, rec. n. on Solanum nigrum L. (Solanaceae).