Paragigagnathus insuetus (Livschitz & Kuznetzov, 1972)

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 : 479-481

Paragigagnathus insuetus (Livschitz & Kuznetzov, 1972) ( fig. 1 )

Amblyseius insuetus Livschitz & Kuznetzov, 1972: 27 .

Pamiroseius insuetus : Beglarov, 1981 a: 30; Kolodochka, 1982: 9 (partly), 1989 а: 227.

Paragigagnathus insuetus, Kolodochka, 1996: 6 ; Chant & McMurtry, 2007: 33; Papadoulis et al., 2009: 76.

Material. Type. Lectotype}: #3690, Ukraine, Crimea, Yalta, The State Nikita botanical garden, on Tamarix sp. , 08.07.1968 (Vasilieva); paralectotypes 10}, 10 {, in the same slide with the lectotype in collection of B. A. Wainstein ( SIZK). Non-type. Crimea: 166 specimens (148}, 18 {) ( SIZK).

R e d e s c r i p t i o n. F e m a l e. Dorsal shield ( fig. 1, 1 ) well sclerotised, tuberculate sculpture better expressed in its central part, sharply tapering frontally; 5 pairs of well-marked solenostomes (it, iv, il, is, ic; id and isc are absent). Dorsal setae short, thick, curved, bluntpointed, smooth, except for coarsely serrated and pointed PD 4 ( fig. 2 , 11), PM 3 with 1–2 serrations ( fig. 2 , 10 ). Setae PL 1– PL 3, PM 3 approximately equal in length. Peritremes reaching nearly the thecae of setae AD 1. The base of the gnathosoma (gnathobase), pedipalps and chelicerae are strongly elongated. The gnathobase is connected to the idiosoma by the gnathobrachium ( fig. 2 , 12). The sternal shield is very weakly sclerotised, its edges are indistinguishable even with the use of a phase-contrast attachment. Because of this, it is very difficult to determinate the real location of the pores St2 (on the shield or outside it) and St3 (on the outgrowths of the shield, or on individual scutes, or on the membrane). The setae of MSt are located on separate, poorly distinguishable scutes. Sandal-shaped ventrianal shield well sclerotised, narrower than genital shield, sharply narrowing caudally; anal pores missing. Metapodal scutes are linear ( fig. 1 , 3 ). The posterior part of the peritremal shield is narrow, curved, with a rounded end ( fig. 1 , 4 ). Chelicera ( fig. 1 , 5 ) relatively small, Df with 1 pointed and 3 blunt teeth, Dm with 1 peculiarly forked tooth. The distal end of Df has a notch into which the end of Dm enters when the chelicera closes. A forked tooth on Dm, when the fingers of the chelicerae are closed, rests on the middle, highest, tubercle on a wide triple tooth on Df. In this case, a reliable tong-like grip is formed with simultaneous crushing of pollen grains or small mites.

Spermatheca with cup-shaped funnel, atrium located on a thickened, roughly folded neck ( fig. 1 , 6 ). Leg IV 1 has a short, thickened, blunt, curved macrochaete ( fig. 1 , 7 ).

M e a s u r e m e n t s. Lds 348, Wds 210; Lvas 110, Wvas 54; Ltar 79; setae length: AD 1 14; AD 2 16; AD 3 14; AD 4 16; PD 2 16; PD 4 11; AM 1 16; AM 2 15; AL 1 18; AL 3 17; AL 4 18; PL 1 19; PL 2 19; PL 3 20; PM 1 17; PM 3 20; PM 4 23; PS 15; AS 17; PV 14; MCh IV 22.

Male. Preanal setae 3 pairs, anal pores missing, approximately in their place, caudal to setae PrA2, 2 rounded pale contiguous spots are placed ( fig. 1 , 8 ). The spermatodactyl is curved with a thin end ( fig. 1 , 9 ). Lds 265.

D i a g n o s i s. The unusual connection of the gnathosome with the idiosome makes this species easily recognizable among other representatives of the Ukrainian fauna family.

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), Western Asia ( Iran, Saudi Arabia, Turkey), Central Asia ( Kyrgyzstan, Turkmenistan). In Ukraine: only in Crimea, and only on the comber Tamarix sp. ; frequent.

Tribe Kampimodromini Kolodochka

Kolodochka, 1998: 59.

Subtribe Typhloseielina Chant & McMurtry

Figures

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. 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. 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. 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. 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. 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.