Eharius (Zavicus) kuznetzovi (Kolodochka, 1979)

Kolodochka, L. A., 2023, The Predatory Mites (Phytoseiidae, Parasitiformes) In The Fauna Of Ukraine: Genera Paragigagnatus, Carinoseius, Kampimodromus, Eharius, Typhlodromips, And Euseius, Zoodiversity 57 (6), pp. 477-506 : 494-497

Eharius (Zavicus) kuznetzovi (Коlоdосhka, 1979) ( fig. 7 )

Kampimodromus kuznetzovi : Kolodochka, 1979 a: 10; Beglyarov, 1981 b; 8; Karg, 1993: 178.

Eharius (Zavicus) kuznetzovi : Kolodochka, 1995 a: 92, 2006: 99.

Eharius kuznetzovi : Chant & McMurtry, 2007: 39; Papadoulis et al., 2009: 37.

Type. Holotype} (marked #1): #2025, Ukraine, Crimea, Main ridge of the Crimean Mountains, 1400 m a. s. l., Nikitskaya Yayla, ur. Krasnyi Kamin, Stachys cretica , 13.06 1976; paratype 1} (same slide and locality as in the holotype); “ allotype ” {, #1368 b, [East Crimea] Karadag, Stachys cretica , 10.06.1975 (Kolodochka) ( SIZK).

Non-type. 90 specimens (71}, 19 {) — Autonomous Republic of Crimea .

R e d e s c r i p t i o n. F e m a l e. Dorsal shield ( fig. 7 , 1 ) well sclerotised, elongated oval, tapering anteriorly, with small lateral emarginations, covered with distinct sculpture in the form of parallel striation; 2 pairs of distinct solenostomes (iv, ic; missing it, id, isc, il, is). Setae PM 4 almost as long as PM 3, pointed, thin, with 1–3 serrations ( fig. 7 , 10 ). Seta AM 1 longer than distance to the theca of seta AL 1. The rest of the setae do not reach the next setae. Peritremes extend beyond bases of setae AS, but do not reach level of theca AL 1. Sternal shield weakly sclerotised, elongated. Setae MSt on individual scutes. The genital and ventrianal shields are well sclerotised. The epigynium of the genital shield is weakly sclerotised, covered with striation in the form of thin branching lines. Ventrianal shield ( fig. 7 , 2 ) with lateral emarginations and concave anterior margin, wider than genital shield in its anterior part; anal pores small, spaced. The pair of opisthoventral setae MV 1 is absent. 3 pairs of preanal setae on ventrianal shield usualy. Sometimes one or both setae V 2 are located outside the shield on the interscutal membrane. Metapodal scutes small, rounded anterior scutellum smaller than elongated posterior one ( fig. 7 , 3 ). The posterior end of the peritremal shield is curved, notched at the end ( fig. 7 , 4 ). Gnathosoma and chelicerae with usual proportions. Chelicera with Df forked at the end, and with 2 teeth in front of pilus dentilis, Dm without teeth ( fig. 7 , 5 ). The spermatheca is saucer-shaped, the atrium is located on a short neck ( fig. 7 , 6 ). Distal part of tarsus with thick fig.ened setae ( fig. 7, 7 ).

Measurements. Lds 360, Wds 200, Lvas 103, Wvas 78, Lian 31, Ltar IV 54; setae length: AD 1 15; AD 2 18; AD 3 17; AD 4, PD 1 19; PD 4 6; AM 1 28; АМ2 15; AL 1 28; AL 3 33; AL 4 34; PL 1 29; PL 3 9; PM 1 28; PM 3 25; PM 4 22; AS 31; PS 19; PV 20.

Male. Preanal setae 3 pairs; anal pores small ( fig. 7 , 8 ). Spermatodactyl L-shaped ( fig. 7 , 9 ). Lds 260.

Diagnosis. In addition to the characters given in the guide to subgenera, it differs from E. (E.) kostini in the following features: the ventrianal shield in the anterior half is wider than the genital one; setae PM 4 almost equal to PM 3, pointed, thin, with 2–3 serrations; peritreme extends beyond the level of the theca seta AS; seta AL 1 does not protrude from the common arc of setae of row AL.

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. Europe ( Greece, Ukraine). In Ukraine: Karadag (eastern Crimea), Crimean Mountains (alpine steppe-Yayla, Outer Ridge), Mykolaiv Region; closely associated with Stachys cretica , concentrated in inflorescences reaching high abundance; common.

Notes. 1. Description, illustrations and morphometry are based on type specimens.

2. The close association of E. kuznetzovi with Stachys cretica and the concentration of individuals in the inflorescences of the host plant, similar to that observed for E. kostini , make the presence of obligate pollenophagy very likely in both species. It should be added that the habitation of individuals of these species on other plants has never been reported, nor has their colonisation of a single host plant ( Marrubium vulgare or Stachys cretica ), which further supports the conclusion that both feeding and habitation of each mite species can only occur on a particular host plant species.

Tribe Typhlodromipsini

Genus Typhlodromips De Leon, 1965

Typhlodromips De Leon, 1965: 23 .

T y p e s p e c i e s: Typhlodromus (Typhlodromips) simplicissimilis De Leon, 1959: 117 . Amblyseius (Typhlodromips) : Wainstein, 1983: 183.

tee species group: Schicha, 1987: 113.

ochii species group: Ehara & Amano, 1998: 41.

Genus profile (according to Chant & McMurtry, 2005 b). Dorsal shield ( fig. 8 , 1 ) bears 17 pairs of setae: AD1, AD2, AD3, AD4; PD1, PD4; AM1, AM2; AL1, AL3, AL4; PL1, PL2, PL3; PM1, PM3, PM4 — on the dorsal shield; AS, PS (both on interscutal membrane). The shield much longer than wide, usually with pronounced reticulate sculpture, normally with lateral emarginations at level of seta PS; dorsal setae middle in size, smooth, pointed, except for setae PM3 and PM4, which are elongated, thickened, serrated and sometimes ending in a club; ventrianal shield of female usually pentagonal, smooth, with 3 pairs of preanal setae arranged in a triangle; anal pores are small to medium in size; ventrianal shield with constriction; male with 3 (sometimes 4) pairs of preanal setae; peritremal shield frontally fused with dorsal shield; the structure of the spermatheca is quite diverse; on Df up to 10 or more teeth, Dm usually with 3 teeth; legs II, III, and sometimes I pairs with macrochaetes; legs IV usually have 3 thickened macrochaetes, blunt or spatulate at the end.

D i a g n o s i s. Species of the genus Typhlodromips differ from morphologically similar species of the tribe Neoseiulini by the presence of macrosetaes on the legs of pairs IV, II, and III, as well as by numerous teeth on Df chelicerae. Being similar to species of the genus Neoseiulus , they differ in large anal pores on an elongated vase-shaped ventrianal shield, strong thickened setae PM4, a peculiar structure of the female spermatheca, and the structure of a massive male spermatodactyl with a thick branch.

The scope and distribution of the genus. There are 61 species in the genus ( Chant & McMurtry, 2007) of which more than half are found in the Nearctic, the remaining species are found in the Oriental, African and Australian subregions and even fewer in China and India. In the countries of the temperate zone, only 6 species are registered, of which 1 is known in Ukraine. It is a first record of representative of the tribe, the genus, and the species in Ukraine.

Figures

Fig. 7.Eharius (Zavicus) kuznetzovi (Коlоdосhka)} (1–7), {(8, 9): 1 — dorsal shield; 2 — ventral body surface; 3 — metapodal plates; 4 — seta AS, peritreme with peritremal shield;5 — chelicera;6 — spermatheca;7 — fragment of leg IV; 8 — ventrianal shield; 9 — chelicerae with spermatodactil; 10 — seta PM4; 11 — samples of aberrations in the placement of preanal setae.

Fig. 1. Paragigagnathus insuetus (Livschitz & Kuznetzov, 1972)} (1–7), {(8, 9): 1 — dorsal shield; 2 — ventral body surface; 3 — metapodal plates; 4 — posterior part of peritremal shield; 5 — chelicera; 6 — spermatheca; 7 — fragment of leg IV; 8 — ventrianal shield; 9 — chelicerae with spermatodactil; 10 — seta PM4; 11 — seta PD4; 12 — гнатосома (seta no shown), Gb — gnathobrachium.

Fig. 10. Euseius ucrainicus (Ко1оdосhkа, 1979)} (1–8), {(9, 10): 1 — dorsal shield; 2 — ventral body surface; 3 — metapodal plate; 4 — posterior part of peritremal shield; 5 —chelicera; 6 — spermatheca; 7 — fragment of leg IV; 8 — ventrianal shield; 9 — chelicerae with spermatodactil.

Fig. 2. Carinoseius improvisus (Kolodochka, Bondarev, & Gwiazdowicz, 2015), comb. n.} (1–11): 1 — dorsal shield; 2 — ventral body surface; 3 — metapodal plates; 4 — posterior part of peritremal schield; 5 — chelicera; 6 — spermatheca; 7 — seta AS and peritreme; 8 — solenostome iv; 9 — solenostome il; 10 — solenostome is; 11 — solenostome ic.

Fig. 3. Kampimodromus aberrans (Oudemans, 1930 a)} (1–7), {(8, 9): 1 — dorsal shield; 2 — ventral body surface; 3 — metapodal plates; 4 — posterior part of peritremal shield; 5 — chelicera; 6 — spermatheca; 7 — fragment of leg IV; 8 — ventrianal shield; 9 — chelicerae with spermatodactil.

Fig. 4. Kampimodromus corylosus Kolodochka 2003} (1–7), {(8, 9): 1 — dorsal shield; 2 — ventral body surface; 3 — metapodal plates; 4 — posterior part of peritremal shield; 5 — chelicera; 6 — spermatheca; 7 — fragment of leg IV; 8 — ventrianal shield; 9 — chelicerae with spermatodactil.

Fig. 5. Kampimodromus karadaghensis Kolodochka 2005} (1–7, 11), {(8, 9): 1 — dorsal shield; 2 — ventral body surface; 3 — metapodal plates; 4 — posterior part of peritremal shield; 5 — chelicera; 6 — spermatheca; 7 — fragment of leg IV; 8 — ventrianal shield; 9 — chelicerae with spermatodactil; 10 — macroseta on tarsus of leg IV.

Fig. 6. Eharius (Eharius) kostini (Коlоdосhka)} (1–7, 11), {(8, 9): 1 — dorsal shield; 2 — ventral body surface; 3 — metapodal plates; 4 — seta AS, peritreme with peritremal shield; 5 — chelicera; 6 — spermatheca; 7 — fragment of leg IV; 8 — ventrianal shield; 9 — chelicerae with spermatodactil; 10 — solenostome iv; 11–13 — samples of aberrations in the placement of preanal setae.

Fig. 8. Typhlodromips mistassini (Chant & Hansell)} (1–8), {(8, 9): 1 — dorsal shield; 2 — ventral body surface; 3 — metapodal plates;4 — caudal part of peritremal shield;5 — chelicera; 6 — spermatheca;7 — fragment of leg IV; 8 — ventrianal shield; 9 — Dm of chelicerae with spermatodactil.

Fig. 9. Euseius finlandicus (Oudemans, 1915)} (1–8), {(9, 10): 1 — dorsal shield; 2 — ventral body surface; 3 — metapodal plate; 4 — posterior part of peritremal shield; 5 — chelicera; 6 — spermatheca; 7 — fragment of leg IV (only macrosetae shown); 8 — ventrianal shield; 9 — chelicerae with spermatodactil.