Graminaseius (Alustoseius) alustoni ( Livschitz & Kuznetzov, 1972 ) Kolodochka, 2022

Kolodochka, L. A., 2022, The Predatory Mites (Phytoseiidae, Parasitiformes) In The Fauna Of Ukraine: A New Species And A New Subgenus Of The Genus Graminaseius, Zoodiversity 56 (6), pp. 463-472 : 468-470

Graminaseius (Alustoseius) alustoni ( Livschitz & Kuznetzov, 1972) , comb. n. ( fig. 3 )

Amblyseius alustoni Livschitz & Kuznetzov, 1972: 25 .

Amblyseius (Neoseiulus) alustoni Karg, 1993: 188 .

Neoseiulus alustoni : Kolodochka, 2004: 300, 2006: 231; Döker et al., 2016: 513.

Material. Type. Syntypes 2 ♀: Ukraine, AR Crimea, Yalta, Nikitsky State Botanical Garden , Avena ludoviciana , [No. of the slide unknown], 21.06.1968 (Kuznetzov) ( SNBG) .

Non-type. Ukraine: Crimea, Karadag, plateau on the south-southwest slope of the Mount Karagach, env. of Biological Station, on Pistacea vera, specimen #1382, 11.06.1975, 1 ♀ ( Kolodochka ); idem, on Pyrus elaegnifolia , specimen #1388a, 13.06.1975, 1 ♀ ( Kolodochka ).

Female. Dorsal shield ( fig. 3 , 1 ) moderately sclerotized, oval; 4 pairs of small solenostomes (it, id, il, ic; missing iv, isc, is). Dorsal setae bristle-shaped, moderately long, smooth, except for slightly serrated PM 3 and PM 4. Setae PM 4 are the longest. Peritremes reach level of setae AM 1, which slightly extend beyond AL 1 theca. Seta AL 1 somewhat shorter than AL 3 which does not reach the theca AL 4. Setae in rows AL and PL are shorter than the distance to the next setae. Seta PM 1 almost reaching the theca PL 1, which is longer than PL 2 and PL 3. Ventrianal shield elongated, with convex lateral margins, transversely striated ( fig. 3 , 2 ); anal pores distinct, small, round, slightly contiguous. Anterior metapodal shield small and narrow; posterior metapodal shield 3.5 times as long as the anterior one, narrow, curved ( fig. 3, 3 ). On Df 3 closely spaced distal teeth, Dm has 2 widely spaced teeth: distal and basal (the latter located at the base of finger) ( fig. 3 , 4 ). Spermatheca funnel with thickened walls, bell-shaped; atrium large, sessile ( fig. 3 , 5). Posterior end of peritremal shield is narrow, curved, pointed, with a pore at end ( fig. 3 , 6). There are three pointed macrosetae on leg of pair IV: the longest one on basitarsus, on genu and tibia along a short macroseta of equal length ( fig. 3 , 7). Other legs without macrosetae.

Measurements: Lds 340, Wds 185; Lvas 117, Wvas 97, Lian 29; Ltar 103. Setae length: AD1 19, AD2 17, AD3 20, AD4 26, PD 2 28; PD 4 12, AM 1 30, АМ2 19; АL 1 28; АL 3 30, АL 4 45, РL1 45; РL2 36; PL 3 17; PM 1 33; РМ3 55; РМ4 78; АS 30, РS 23; РV 60; MСh IV: ge 26, ti 25, ta 68.

Male unknown.

D i a g n o s i s. With characters of the subgenus.

D i s t r i b u t i o n, h a b i t a t, o c c u r r e n c e: Turkey; Ukraine: AR Crimea; trees ( Pistacea mutica , Pyrus elaeagnifolia ), herbs ( Avena ludoviciana ); rare.

Note. One of the syntypes is illustrated here by the author.

Figures

Fig. 3. Graminaseius alustoni (Livschitz et Kuznetzov, 1972) comb. n. ♀: 1 — dorsal shield; 2 — ventral body surface; 3 — metapodal plates; 4 — chelicera; 5 — spermatheca; 6 — posterior part of peritremal shield; 7 — fragment of leg IV.

Fig. 1. Graminaseius graminis (Chant, 1956) ♀ (1–7), Ơ (8, 9): 1 — dorsal shield; 2 — ventral body surface; 3 — metapodal plates; 4 — posterior part of peritremal schield; 5 — chelicera; 6 — spermatheca; 7 — fragment of leg IV; 8 — chelicera with spermatodactyl; 9 — ventrianal shield.

Fig. 2. Graminaseius lituatus (Athias-Henriot) ♀ (1–7), Ơ (8–10 from Athias-Henriot, 1961): 1 — dorsal shield; 2 — ventral body surface; 3 — metapodal plates; 4 — posterior part of peritremal schield; 5 — chelicera; 6 — spermatheca; 7 — fragment of leg IV; 8 — ventrianal shield; 9, 10 — chelicera with spermatodactyl.

Fig. 4. Graminaseius altimontanus Kolodochka, sp. n., holotype ♀: 1 — dorsal shield; 2 — ventral body surface; 3 — metapodal plates; 4 — spermatheca; 5 — posterior part of peritremal shield; 6 — fragment of leg IV.