Transeius jailensis, : Chant & McMurtry, 2007

Kolodochka, L. A., 2023, The Predatory Mites (Phytoseiidae, Parasitiformes) In The Fauna Of Ukraine: A Review With A Key To Species And New Combinations In The Genus Transeius, Zoodiversity 57 (3), pp. 191-214 : 199-201

Transeius jailensis (Коlоdосhka, 1981) ( fig. 4 )

Amblyseius jailensis Коlоdосhka, 1981: 20; Moraes et al., 1986: 17;

Transeius jailensis: Chant & McMurtry, 2007: 71 ;

Typhlodromips jailensis : Denmark & Evans, 2019: 90.

M a t e r i a l. Type. Holotype ♀, Ukraine, AR Crimea, env. Yalta, Nikitskaya Yayla (alpine meadows), Krasnyy Kamen’, 1350 m a. s. l., herbaceous plants Alchemilla tittantha , 22.06.1976, specimen #2160, 44°30'55.0" N 34°05'47.0" E; paratype (“ allotype ”) Ơ (No 1), ibid., on Plantago sp. , same date, specimen #2163 (Kolodochka) (SIZK).

Non-type. 242 ♀, 9 Ơ (251 specimens), very commonly in the Crimean Mountains on various herbaceous plants growing on the yaila and in the upper part of the forest edge (1300–1400 m a. s. l.) (Kolodochka). Solitary specimens of this species have been found outside its high-altitude locations: South-Eastern Crimea, Karadag mountain range , Tumanova Balka , topsoil, 28.07.1980, specimen #3699-1 (S–219) , 1♀, 44°55'20" N 35°12'34" E; ibid., oak-pistachio forest on the N slope, humus, 17.06.1975, specimen # 3700-5 (S–225), 17.06.1975 , 1 ♀; ibid., soil at roots of Pistacia mutica , the same data, specimen #2091-1 (S–305) , 2 ♀; ibid., same date, specimen #2092 (S–307), 1 Ơ (G. Shcherbak); West Crimea, Tarkhankut Peninsula, Chernomorsky District, tract Crolichya Balka , north of the Olenivka village , <dry steppe>, Senecio sp. , 24.05.1979, specimen #3365 , 1 ♀ 45°23'56" N 32°33'02" E ( Kolodochka ) ( SIZK) .

R e d e s c r i p t i o n. F e m a l e. The dorsal shield ( fig. 4 , 1 ) well sclerotized, with a dark wide border along the posterolateral margins of the shield, smooth, elongate-oval in form, with small lateral emarginations, covered with a slight oblique striation along the anterior-lateral margins; solenostomes 7 pairs (it, iv, id, isc, il, is, ic), of which is and ic relatively large, the rest are small. Peritreme reaches the theca of seta AD1. All dorsal setae smooth. Seta AM1 almost reaches the theca of seta AL1. Setae of row AL do not reach the next setae. Seta AL2 slightly shifted medially with respect to arc of row AL. Seta AL3 about 1.5 times as long as AL2 and more than twice as long as AL3. Setae PM1, PL2, and PL3 of equal length. Seta PL1 three times as long as each of them. Seta PM3 longer than distance to theca PL3. Ventrianal shield wider than genital, well sclerotized, with concave anterior and lateral margins, caudally widened; anal pores small, round, not shifted ( fig. 4 , 2 ). The anterior half of the shield covered with striation. The posterior metapodal scutus is larger than the narrower anterior one ( fig. 4 , 3 ). The posterior end of the peritremal shield is widened in the region of the stigma, weakly curved in the posterior part, ending in a small coracoid process ( fig. 4, 4 ). Df of chelicera with 2 large distal teeth and 11 miniature teeth, Dm with 3 teeth ( fig. 4 , 5 ). The funnel of the spermatheca is bell-shaped, with uniformly thick walls, becoming sharply thinner in the transition to the sacculus; the massive atrium asymmetrical, immersed into base of the funnel ( fig. 4 , 6 ). There are 3 macrosetae on leg IV: the shortest on the tibia ( fig. 4 , 7 ). Macrosetae on other legs missing.

Measurements: Lds 362, Wds 220; Lvas 125, Wvas 106, Lian 48; Ltar IV 93; setae length: AD1 21; AD2 8; AD3, AD4 7; PD2 9; PD4 12; AM1 31; AM2 7; AL1 19; AL3 26; AL4 41; PL1 29; PL2 12; PL3 11; PM1 10; PM3 62; PM4 110; AS 22; PS 16; PV 62; MCh IV: ge 41, ti 34, ta 51.

Male. Preanal setae 3 pairs; anal pores round, small ( fig. 4 , 8 ). Spermatodactyl Lshaped ( fig. 4 , 9 ). Lds 290.

Diagnosis. Transeius jailensis is similar to T. begljarovi Abbasova , from which it is easily distinguished by a different shape of the spermatheca, which also has a cone-shaped funnel, but much wider and not curved in the part adjacent to the atrium, as well as by the structure of the Df chelicerae with numerous small teeth (see also description of T. begljarovi ).

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 ( Ukraine). In Ukraine: Crimea — mountains relief upper forest line (1300–1400 m a. s. l.), Karadag (up to 577 m a. s. l.), and steppe part (Tarkhankut Peninsula); herbaceous plants; common in the highlands, rare at low altitudes and at steppe .

Notes 1. Description, illustrations, and dimensions are based on the holotype.

2. Of great interest are single occurrences of this species far from the yayla, in landscapes of relatively low relief (Karadag) and in steppe areas (Tarkhankut).

Figures

Fig. 4. Transeius jailensis (Коlоdосhka, 1981), ♀ (1–7), Ơ (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 (macrosetae shown only); 8 — ventrianal shield; 9 — chelicerae with spermatodactil.

Fig. 1. Transeius begljarovi (Abbasova, 1970), ♀ (1–7), Ơ (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. 2. Transeius fragilis (Kolodochka et Bondarenko, 1993), ♀ (1–7): 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.

Fig. 3. Transeius herbarius (Wainstein, 1960), ♀ (1–7), Ơ (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 (macrosetae shown only); 8 — ventrianal shield; 9 — chelicerae with spermatodactil.

Fig. 5. Transeius lutezhicus (Wainstein, 1972), ♀ (1–7), Ơ (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. 6. Transeius masseei (Nesbitt, 1951), ♀ (1–7), Ơ (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 (macrosetae shown only); 8 — ventrianal shield; 9 — chelicerae with spermatodactil.

Fig. 7. Transeius montanus (Wainstein, 1962), ♀ (1–7), Ơ (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. 8. Transeius proximus (Кolоdoсhкa, 1991), ♀ (1–9), Amblyseius (Amblyseius) avetianae Arutujan et Ohandjanian, 1972 (10): 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 — chelicera; 9, 10 — spermatheca.

Fig. 9. Transeius volgini (Wainstein et Beglyarov, 1971), ♀ (1–8), Ơ (9, 10): 1 — dorsal shield; 2 — backward curved ends of peritremes; 3 — posterior part of ventral body surface; 4 — metapodal plates; 5 — posterior part of peritremal shield; 6 — chelicera; 7 — spermatheca; 8 — fragment of leg IV; 9 — ventrianal shield; 10 — chelicerae with spermatodactil.