Acalvolia

Fan, Qing-Hai, George, Sherly & Kumarasinghe, Lalith, 2010, Genus Acalvolia (Acari: Winterschmidtiidae), with the description of a new species from the USA, Zootaxa 2719, pp. 41-61 : 60

Key to the known species of genus Acalvolia

1. Ratio sce: sci = 4.6; dorsal idiosomal setae c1, d1 and e1 length less than two thirds the distance between their bases and the bases of setae in next row; supracoxal setae barbed ........................ Acalvolia squamata ( Oudemans, 1909) Ratio sce: sci = 2.5 ( Figs. 1 and 6 ); setae c1, d1 and e1 reaching or overlapping bases of setae in next row ( Figs. 1 and 6 ); supracoxal setae smooth ( Figs. 3 and 8 ) ................................................................... Acalvolia americana sp. nov.

Figures

FIGURE 1. Acalvolia americana sp. nov. (female). Dorsal view of idiosoma.

FIGURE 3. Acalvolia americana sp. nov. (female). A, ventral view of chelicera; B, subcapitulum; C, supracoxal sclerite, supracoxal seta scx and Grandjean’s organ; D, copulatory opening and spermatheca.

FIGURE 6. Acalvolia americana sp. nov. (male). Dorsal view of idiosoma.

FIGURE 8. Acalvolia americana sp. nov. (male). A, ventral view of chelicera; B, subcapitulum; C, supracoxal sclerite, supracoxal seta scx and Grandjean’s organ; D, aedeagus and apodeme IV; E, variation of aedeagus.