Amblyseius rademacheri Dosse, 1958

Amblyseius rademacheri Dosse, 1958 View in CoL ( fig. 12 View Fig )

Amblyseius rademacheri Dosse, 1958 a: 9 View in CoL .

Amblyseius rademacheri View in CoL : Dosse, 1958 b: 44.

Typhlodromus (Amblyseius) rademacheri : Chant, 1959.

Typhlodromus rademacheri : Hirschmann, 1962: Tafel 11, 222.

Typhlodromus (Typhlodromus) rademacheri : Westerboer & Bernhard, 1963: 658. Amblyseius (Typhlodromips) rademacheri View in CoL : Karg, 1971: 215.

Amblyseius (Amblyseius) rademacheri View in CoL : Karg, 1993: 185.

Typhlodromips rademacheri : Moraes et al., 1986: 145.

Amblyseius rademacheri View in CoL : Kolodochka, 2006: 229.

Material. Type. 1} Germany, “Obstgarten des Instituts für Pflanzenschutz der Landwirtschaftlichen Hochschule Stuttgart Hohenheim” (Baden Wurttemberg, Stuttgart, on apple) (“ in der Sammlung des Instituts für Pflanzenschutz”; slide No. unknown) .

Non-type. 1104 specimens (796}, 308 {) — Donetsk, Chernihiv, Cherkassy, Kyiv, Lviv, Mykolayiv, Rivne, Sumy, Transcarpathian, Zhytomyr, Vinnitsa Regions.

R e d e s c r i p t i o n. F e m a l e. The dorsal shield ( fig. 12 View Fig , 1 View Fig ) is moderately sclerotised, ovoid, with reticulate sculpture, tapering anteriorly, the lateral notches are barely outlined; 7 pairs of small solenostomes (it, iv, id, isc, il, is, ic). Dorsal setae sharp, short and smooth except for AL4, PM2, PM3, which are much longer than the others. The setae of PM2 and PM3 are thick and roughly serrated. Seta AM1 slightly shorter than the distance to the theca of seta AL1. Setae PL1 and PL2 equal and longer than PL3. The length of the PM3 seta is more than 7–10 times the length of the PL3 seta. Seta AS more than twice as long as PS. Peritremes long, extending beyond the thecae of setae AD1. All ventral setae are thin, smooth and sharp, except for the roughly serrated PV. The ventrianal shield ( fig. 12 View Fig , 2 View Fig ) is wider than the genital shield with concave anterior and lateral edges, slightly covered with light reticulate sculpture; anal pores semilunar, obliquely located. The posterior metapodal scutes are larger and wider than the oblong anterior ones ( fig. 12 View Fig , 3 View Fig ). The posterior part of the peritremal shield is as in fig. 12 View Fig , 4 View Fig . There are 9 teeth on Df of chelicerae, and 2 on Dm ( fig. 12 View Fig , 5 View Fig ). Spermatheca with a wide cup-shaped funnel and a large sessile, complexly arranged atrium ( fig. 12 View Fig , 6 View Fig ). Leg IV has 3 elongated sharp macrochaetes, the longest on the basistarsus ( fig. 12 View Fig , 7 View Fig ). On the genu and tibia III and on genu II and I along a short macrochaetes.

Measurements: Lds 380, Wds 233: Lvas 120, Wvas 100, Lian 30–32: Ltar IV 130; setae length: AD1 22; AD2 7; AD3 8; AD4 9; PD2 9; PD4 9; ML, PL 11; PL2 12; AM1 33; AM2 7; AL1 14; AL3 15; PL3 8; AL5 60–70; PM3 80–90; PM4 100–110; AS 20; PS 8; PV 45–56; MCh IV: ge 61–63, ti 45, ta 81; MCh III: ge 34, ti 27; MCh II: ge 27; MCh I: ge 32.

Male. Preanal setae 3 pairs; anal pores are large, oval ( fig. 12 View Fig , 8 View Fig ). The spermatodactyl is L-shaped ( fig. 12 View Fig , 9 View Fig ). Lds — 300.

D i f f e r e n t i a l d i a g n o s i s. A. rademacheri is similar in the pattern of dorsal setae to A. andersoni and A. wainsteini both. However, it differs well from them in the presence of thick, inflexible, roughly serrated setae PM3 and PM4, as well as by the ventrianal shield clearly expanded in its anterior third. In addition, the anal pores in A. rademacheri are not located horizontally, as in the other two species, but obliquely at an angle of about 6–7° (see fig. 12 View Fig , 2 View Fig ).

D i s t r i b u t i o n, h a b i t a t s, o c c u r r e n c e. Europe (15 countries), Southern Caucasus ( Armenia, Azerbaijan, Georgia), Middle East ( Iran), Far East ( China, Japan, South Korea, Russia: Primorsky Territory). In Ukraine: Autonomous Republic of Crimea (Main ridge of mountains, yayla), Polissia, Wood-and-Steppe, Steppe; grasses, rarely trees and shrubs; frequent.

Note. Description, morphometry and illustrations are based on non-type specimens from the Kyiv Region after comparing them with voucher specimens from the collection of B. A. Wainstein and illustrations of this species in publications by various authors.