Eriophyes

Soika, Grażyna & Kozak, Marcin, 2013, Eriophyes species (Acari: Eriophyoidea) inhabiting lime trees (Tilia spp.: Tiliaceae) — supplementary description and morphological variability related to host plants and female forms, Zootaxa 3646 (4), pp. 349-385 : 381-382

Key to protogyne and deutogyne females of Eriophyes species on Tilia spp. ( Tiliaceae )

1 Scapular tubercles cylinder shape. Posterior margin of prodorsal shield almost straight. Empodia 5-rayed............... 2

- Scapular tubercles truncated cone shape. Posterior margin of prodorsal shield convex. Empodia 4-rayed................ 3

2 Dorsal annuli narrow and microtuberculated. Space between admedian, submedian lines and lateral margin of prodorsal shield with numerous dashed, short lines and granular structures. Coxigential area with 7–8 microtuberculated annuli. Body milkywhite in colour.................................................................. E. nervalis protogyne female

- Dorsal annuli wide and smooth. Space between admedian, submedian lines and lateral margin of prodorsal shield is smooth. Coxigenital area with 10–12 indistinct microtuberculated annuli. Body amber in colour...... E. nervalis deutogyne female

3 Prodorsal shield subtriangular; prosternal apodeme unforked. Length of genital setae about length of epigynium at most.. 4

- Prodorsal shield semicircular; prosternal apodeme forked anteriorly. Length of genital setae at least one half of epigynium length.............................................................................................. 5

4 Prodorsal shield with numerous minute dashes and granular structures on rear and anterior half of shield and lateral sides. Dorsal annuli with elongated, oval microtubercules. Microtubercules minute and barely visible on last 8 dorsal annuli. Coxigenital area with microtuberculated annuli. Body milky white in colour............................. E. exilis protogyne female

- Prodorsal shield with minute dashes and granular structures absent. Dorsal annuli with oval microtubercles less distinct. Last 8 dorsal annuli, smooth. Coxigenital area with smooth annuli. Body amber in colour............. E. exilis deutogyne female

5 Dorsal annuli with obscure, elongated, oval microtubercles. Microtubercles minute on last 5 dorsal annuli. Coxigenital area with 5–6 microtuberculated annuli. Body milky-white in colour............................ E. tiliae protogyne female

- Dorsal annuli with large, distinct, almost round microtubercles. Last 5 annuli, smooth. Coxigenital area with 4 microtuberculated annuli. Body amber in colour.................................................... E. tiliae deutogyne female