Halozercon karacholana Wisniewski et al. 1992
- Dataset
- A new species of Halozercon (Acari: Zerconidae) from South Siberia (Russia) with additional information on Halozercon karacholana Wiśniewski et al., 1992
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Arachnida
- order
- Mesostigmata
- family
- Halolaelapidae
- genus
- Halozercon
- species
- Halozercon karacholana
description
Female (Figs 38 – 47, n = 10) Dorsal idiosoma (Fig. 38). Idiosoma suboval, 450 – 485 long and 270 – 310 wide. Anterior margin of podonotum curved ventrally to form a vertex, with two pairs of setae inserted on the ventral side of idiosoma: j 1 stout, slightly pilose (15 – 17) and z 1 (10 – 11) thorn-shaped, usually smooth, but in some specimens slightly pilose, located latero-posteriorly to j 1 setae. Podonotal shield extensively neotrichous, with about 69 – 74 setae on each side (including marginal etae). Surface of podonotum ornamented by network of small tubercles. Podonotum setae of lateral regions pilose, 15 – 20 long, in central region — pilose or some setae smooth, 10 – 18 long. Four pairs of porelike structures (glands) po 1 – po 4 are present, po 1 inserted in vertex, close to marginal setae, visible from ventral side of idiosoma. Opisthonotum extensively neotrichous, with about 75 – 78 densely pilose setae (22 – 25), with network of small tubercles, with four pairs of pore-like structures (glands) Po 1 – Po 4, glands Po 4 located in posterior margin of ventri-anal shield. All dorsal setae surrounded by basal rings, particularly enlarged in opisthonotum. Marginal dorsal setae of r – R series neotrichous, inserted on tubercles, elongated, 23 – 25 long, slightly curved and pilose on one side. Ventral idiosoma. (Figs 39 – 41). Base of tritosternum 24 – 26 long and 13 – 15 wide, paired pilose laciniae free from each other along entire length, 55 – 60 long, basal ends of laciniae inserted into the basal segments, as in cups (Fig. 39). Presternal (jugular) platelets indistinct, weakly sclerotised, with pair of St 1 setae (18 – 20) (Fig. 40). First pair of sternal platelets suboval, irregular, 18 – 25 long and 15 – 18 wide, with pair of St 2 setae (18 – 20) and pair of lyrifissures iv 2; with a folded surface. Median area between sternal platelets ornamented by rounded tubercles. Second pair of sternal platelets suboval, irregular, with folded surface, 23 – 28 long and 18 – 20 wide, with two pairs of setae St 3, St 4 (15 – 18) and one pair of lyrifissures iv 3, inserted anteriorly to St 3 setae. Genital shield 63 – 70 long and 37 – 50 wide at level of St 5 setae, irregularly-shaped, with individual shape in each specimen; expanded anteriorly and posteriorly; anterior margin with fine folding; with pair of genital setae St 5 (15 – 18) and lyrifissures iv 5 on lateral edges of shield or in soft cuticle laterad of shield. Subtriangular membrane surrounding the genital shield (Fig. 41). Genital shield with complex form: one median unpaired triangular cap and two pairs of fine sclerites — short anterior pair and elongate posterior pair. Endo-, exopodal and metapodal shields absent. Adgenital gland pores gv 2 are multiple, dispersed over the surface: one pair of glands opening located in soft cuticle posterolaterad to genital shield, three other pairs of openings located in ventri-anal shield. Peritrematal shields fused anteriorly and with dorsal shield laterally; strong sclerotised, postero-lateral ends are drawn back in the oblique angle; with festoon reticulation along entire length. Five pairs of pore-like structures inserted in peritrematal shield: enlarged gp 1, gp 2 and small ip 1 – ip 3. Peritremes 85 – 105 long, slightly curved or straight, reaching anterior margins of coxae III or level of posterior 1 / 3 part of coxae II; with internal cell structure. Arch of vertex with two dorsal setae j 1 and z 1. Ventri-anal shield broad, 135 – 150 long and 238 – 275 wide; fused to opisthonotal shield around the outer edge; ornamented by small tubercles and festoon reticulation; with 7 – 8 pairs of smooth opisthogasric setae (15 – 18) inserted asymmetrically, including Jv 1 and Zv 1 at anterior margin, or Jv 1 located in soft cuticle in some specimens; and with 8 – 9 pilose opisthonotal setae (18 – 20) with enlarged basal rings at postero-lateral margins of shield. The most posterior marginal row with elongated and smooth setae (23 – 25) on raised tubercles duplicates opisthonotal rows of setae. Anal area with slightly pilose pre-anal setae and smooth post-anal seta (11 – 13), anal opening 23 - 25 long; with two lyrifissures on each valve; cribrum located posteriorly of post-anal seta. Pair of glands gv 3 located antero-laterad to para-anal setae. Gnathosoma. (Figs 42 – 47) Fixed digit of chelicera 45 – 48 long, with five teeth in addition to apical hook and leaf-shaped pilus dentilis (Figs 42, 43); movable digit the same length (45 – 48) with three teeth in additional to apical hook. Chelicera with long dorsal seta (16 – 18), lateral (antiaxial) and dorsal (paraxial) lyrifissures and arthrodial corona. Epistome subtriangular, with irregularly serrated edges and smooth pointed median projection (Fig. 44). Corniculi 25 – 26 long and 11 – 12 wide. Internal malae slightly longer than the corniculi with complex three-layer structure: acute elongated anterior projection with short lateral process; serrated structure on intermediate layer and pilose basal structure (Fig. 45). Deutosternal groove with 7 – 8 transverse denticulate rows (Figs 45, 46), with three paired transverse lines, the pair of arched transverse rows of large denticles located at the level of pc setae. Setae h 1 – h 3 simple: h 1 (34 – 35) longest, seta h 2 (14 – 15) shorter then h 3 (30 – 32); pc (15 – 16) serrated. Dorsal side of gnathosoma with pair of protruding wedge-shaped structures between palpal coxa and trochanter, lateral to epistome, connected with inner longitudinal chord (Fig. 47). Palpal chaetotaxy 2 – 5 – 6 – 12 – 15, palp with five free segments; trochanter with seta al 2 long and pilose in the distal third (27 – 32) and short, smooth al 1 (13 – 15) (Fig. 45); palp genu with setae al 1 and al 2 pilose in distal third; palp apotele two-tined. Legs. Lengths: I 285 – 310, II 225 – 245, III 220 – 232, IV 275 – 300 µ. Chaetotaxy of legs I – IV: coxae –– 2, 2, 2, 1; trochanters –– 6, 5, 5, 5, femora –– 13 (2 5 / 5 1), 11 (1 5 / 3 2), 6 (2 2 / 2 0), 6 (2 2 / 2 0); genua –– 13 (2 5 / 3 3), 11 (1 5 / 3 2) or 12 (1 5 / 3 3), 10 (2 4 / 3 1), 10 (2 4 / 3 1); tibiae –– 14 (2 6 / 4 2), 10 (1 4 / 3 2), 9 (2 4 / 2 1), 10 (2 5 / 2 1); tarsi –– II – IV 18 (3 7 / 5 3), 18 (3 7 / 5 3), 18 (3 7 / 5 3). All legs with pair of sclerotised claws and pulvillus with five lobes. Pretarsus of II – IV legs with ambulacral stalk, legs I with sitting claws. All legs ornamented by rows of tubercles, many setae at dorsal side on raised bases, some of them pilose. Coxae I – IV are closely grouped together; coxae I – II with splitting on dorsal side, coxae III – IV on anterolateral side. Coxae II – III with antero-dorsal spines: coxae II with large sharp spine, coxae III with small one. Male. (Figs. 48, 49, n = 10). Dorsal idiosoma. Dorsal shield suboval in shape, 440 – 455 long and 255 – 300 wide. Ornamentation, porotaxy and chaetotaxy similar to that female. Ventral idiosoma (Fig. 48). Base of tritosternum 23 – 25 long and 10 – 12 wide, laciniae pilose, 55 – 60 long. Presternal (jugular) platelets weakly sclerotised, with pair of St 1 setae. First sternal platelet entire, 25 – 33 long and 45 – 50 wide, with pair of St 2 setae and pair of iv 2 lyrifissures, entire, ornamented with folds and grooves. Second sternal platelet entire, 25 – 27 long on median line and 37 – 45 wide at level of St 3 setae; subchordate shape, ornamented by folds; with two pairs of setae St 3, St 4 and one pairs of lyrifissures iv 3 in antero-lateral margins; surrounds the genital opening. Genital opening located at level of coxae III, with pair of eugenital setae, covering by two platelets. Third sternal platelet entire, triangular shape, 25 – 30 long and 30 – 50 wide, with pair of St 5 setae and pair of iv 5 lyrifissures. Measurements of St 1 – St 5 setae 11 – 17 µ. Endo-, exopodal and metapodal shields absent. Peritrematal shields similar to that female, with five pairs of pore-like structures: enlarged gp 1, gp 2 and small ip 1 - ip 3. Peritremes similar to that female. Arch of vertex with two dorsal setae: slightly pilose j 1 (15 – 16) and smooth thorn-shape z 1 (10 – 11). Ventri-anal shield broad, 140 – 150 long and 250 – 265 wide, fused to opisthonotal shield around the outer edge; ornamented by network of small tubercles; with 6 – 7 pairs of opisthogasric smooth setae inserted asymmetrically (13 – 17) and 12 – 15 pairs of opisthonotal pilose setae (20 – 25) inserted posteriorly; with transverse split along the junction of opisthonotal shield to ventral side in some specimens. Adgenital gland pores gv 2 are multiple, dispersed over the surface: one pair of glands located in soft cuticle posteriorly of coxae IV, other 1 – 3 pairs of openings located in ventri-anal shield. The most posterior marginal row with elongated smooth setae (22 – 25) on raised tubercles duplicates opisthonotal rows of setae as in female. Anal area with slightly pilose preanal setae and smooth post-anal seta 10 – 11 long, anal opening 23 – 24 long; with two lyrifissures on each valve; cribrum presented. Pair of glands gv 3 located antero-laterad of para-anal setae. Gnathosoma. Male chelicera lacking spermatodactyl. Fixed digit of chelicera 40 – 42 long, with two large basal teeth and 5 – 6 small distal teeth in addition to apical hook and leaf-shaped pilus dentilis (Fig. 49). Movable digit of chelicera 40 – 42 long, tridentate in addition to apical hook, with arthrodial corona at a base of digit. Chelicera with long dorsal seta, lateral (antiaxial) and dorsal (paraxial) lyrifissures. Epistome, corniculi, internal malae, hypostomal and palp structures as in female. Legs. Lengths: I 255 – 285, II 225 – 240, III 215 – 235, IV 280 - 290 µ. Chaetotaxy and morphology of legs as in female. Leg II without sexual differences. Deutonymph (Figs 50 – 51, n = 10). Dorsal idiosoma (Fig. 50). Dorsal shield suboval shape, 375 – 430 long and 240 – 275 wide. Anterior margin of podonotum curved ventrally to form a vertex, with pairs of setae j 1 and z 1. Dorsal shields extensively neotrichous, with network of small tubercles and porotaxy as in adults. Podonotal shield with about 67 – 69 setae on each side, opisthonotal shield with about 47 – 51 setae on each side. Ventral idiosoma (Fig. 51). Pairs of St 1, St 4 and St 5 setae inserted in soft cuticle of sternal region; pairs of St 2 and St 3 setae — in weakly sclerotised sternal platelets or in soft cuticle. Peritrematal shields narrow, fused with dorsal shield laterally, with festoon reticulation along entire length. Two pairs of pore-like structures visible: ip 1 and gp 1. Peritremes longer than in adults, reaching level of top spine of coxae II anteriorly; with internal cell structure. One pair of adgenital gland pores gv 2 located in soft cuticle posteriorly to coxae IV. Opisthogastric area with 5 – 6 pairs of simple setae inserted in soft cuticle asymmetrically. Anal shield 65 – 87 long and 50 – 60 wide, with pair of Jv 3, pre-anal setae and post-anal seta; pair of glands gv 3 located antero-laterad of para-anal setae and with cribrum; anal opening 25 – 30 long. Dorsal shield is curved on the ventral side posteriorly, does not connect with anal shield, with about 8 – 10 pairs of pilose setae. Gnathosoma. As in adults. Legs. Lengths: I 250 – 287, II 200 – 225, III 210 – 240, IV 245 – 260. Chaetotaxy of legs as in adults. Protonymph (Figs 52 – 53, n = 5). Dorsal idiosoma (Fig. 52). Dorsal idiosoma 290 – 315 long and 190 – 210 wide with weakly sclerotised podonotal and opisthonotal shields. Anterior margin of the podonotum is curved to the ventral side and forms a vertex with pairs of setae j 1; with about 33 – 35 pilose setae on each side (including marginal setae); ornamented by network of small tubercles. Opisthonotal region with about 26 – 28 pilose setae on each side; usually entire or divided between J 1 and J 3 setae by strip of soft cuticle in some specimens. Row — J with 3 – 4 pairs of setae. Ventral idiosoma (Fig. 53). Sternal setae St 1 – St 3 and St 5 inserted in soft cuticle. Peritrematal shields very narrow, fused with dorsal shield laterally or not distinct in some specimens. Pore-like structures not visible. Peritremes very short (18 – 22), located between anterior and posterior margins of coxae IV; with internal cell structure; with thin ducts coming from stigmata. One pair of adgenital gland pores gv 2 located on soft cuticle posteriorly of coxae IV. Opisthogastric area with 4 – 5 pairs of smooth setae inserted in soft cuticle. Anal shield as long as wide (37 – 45), with pair of pilose pre-anal setae and smooth post-anal seta; anal opening 22 – 23 long, with pair of glands gv 3 located antero-laterad of para-anal setae. Dorsal shield is curved on the ventral side posteriorly, does not connect with anal shield; with 4 – 5 pairs of pilose setae, with most posterior row of smooth marginal setae. Gnathosoma. Fixed digit of chelicera with five teeth in addition to apical hook; movable digit the same length as fixed one, tridentate in addition to apical hook. Epistome, corniculi, internal malae as in adults and deutonymphs. Legs. Lengths: I 185 – 190, II 160 – 180, III 155 – 180, IV 185 – 200. Structures of pretarsus and coxae of leg I – IV as in adults and deutonymphs. Larva (Figs 54 – 55, n = 4). Dorsal idiosoma (Fig. 54). Dorsal idiosoma 207 – 237 long and 158 – 175 wide with podonotal, pygidial shields and three pairs of mesonotal sclerites. Podonotal shield with nine pairs of setae, including six pairs of j 1 - j 6 setae; setae j 1 the longest (23 – 25) located on anterior margin of shield; stout, pilose, inserted on tubercles. Pygidial shield with four pairs of pilose setae sitting on large tubercles. Two pair of setae in J - row located between mesonotal sclerites; two pairs of lateral setae pilose. Ventral idiosoma (Fig. 55). Tritosternum as in adults. Sternal setae St 1 – St 3 and St 5 inserted in soft cuticle. Periremes and stigmas are absent. Pore-like structures not visible Opisthogastric area with 3 – 4 pairs of smooth setae inserted in soft cuticle, of which seta Jv 2 the longest. Posterior margin of ventral idiosoma with three pairs of short pilose setae. Anal shield is not formed; anal opening surrounded by pair of short pilose pre-anal setae and long smooth post-anal seta. Gnathosoma. Gnathosoma in forward position not curved in ventral side of idiosoma. Legs. Lengths: I 187 – 193, II 145 – 160, III 155 – 168. Structures of pretarsus and coxae of leg I – III as in adults, deutonymphs and protonymps.
materials_examined
Material examined: NORTH ALTAI: 63 females, 15 males, Shebalino District, Cherginskii range, Belok Mukhor- Cherga Mt., 900 m a. s. l., 51 ̊ 21 ʹ N, 85 ̊ 90 ʹ E, Pinus sibirica - Larix sibirica forest, in litter, 8 August 2013, leg. I. I. Marchenko; 43 females, 8 males, 2 deutonymphs, 1 protonymph, same data, 21 July 2011, leg. I. I. Marchenko; 8 females, 2 males, Maima District, Malaja Sinyuha Mt., 1190 m a. s. l., 51 ̊ 49 ʹ N, 85 ̊ 21 ʹ E, Betula sp. –– Abies sibirica - Pinus sibirica forest, in litter, 28 August 2016, leg. I. I. Marchenko; NORTH-EAST ALTAI: 21 females, 14 males, 1 deutonymph, Turochak District, Altyn-Too Range, Archa Mt., 1700 m, 51 ̊ 32 ʹ N, 87 ̊ 26 ʹ E, alpine tundra with Betula rotundifolia, in litter and moss, 9 August, 2002, leg. E. V. Sleptsova; 35 females, 13 males, same geographical data, 14 August 2007, leg. I. I. Marchenko; 3 females, same geographical region, 900 m a. s. l., Abies sibirica –– Picea obovata –– Pinus sibirica forest, in litter, 21 July 2010, leg. I. I. Marchenko; 13 females, 7 males, 9 deutonymphs, 1 protonymph, same geographical region, 1100 m a. s. l., Pinus sibirica forest, in litter, 26 June 2006, leg. N. V. Vladimirova; 2 females, same geographical region, Evrechala Mt., 1800 m, 51 ̊ 29 ʹ N, 87 ̊ 24 ʹ E, under Pinus sibirica, in litter, 12 August 2002, leg. E. V. Sleptsova; 32 females, 10 males, 9 deutonymphs, 5 protonymphs, Turochak District, environs of Verh-Biisk village, 390 m, 52 ̊ 03 ʹ N, 87 ̊ 05 ʹ E Betula sp. –– Populus tremula forest, in litter, 9 August 2006, leg. I. I. Marchenko; 6 females, 3 males, 2 deutonymphs, Turochak District, environs of Kebezen village, 450 m a. s. l., 51 ̊ 54 ʹ N, 87 ̊ 06 ʹ E Pinus sylvestris –– Betula sp. forest, in litter, 8 August 2006, leg. I. I. Marchenko; 5 females, 2 males, Solton Ditrict, environs of Saidyp village, 500 m a. s. l., 52 ̊ 34 ʹ N, 86 ̊ 34 ʹ E Betula sp. –– Populus tremula forest, in litter, 22 August, 2006, leg. I. I. Marchenko; WEST ALTAI: 2 males, Ust- Koksa District, Krasnaya Mt., 1700 m a. s. l., 50 ̊ 05 ʹ N, 85 ̊ 11 ʹ E, Picea obovata –– Abies sibirica –– Pinus sibirica forest, in litter, 23 July 2015, leg. I. I. Marchenko; CENTRAL ALTAI: 76 females, 18 males, 1 deutonymph, Seminskii Range, Sarlyk Mt., 2000 m a. s. l., 51 ̊ 04 ʹ N, 85 ̊ 44 ʹ E, Pinus sibirica forest and alpine tundra, in litter and moss, 6 July 2013 and 13 June 213, leg. I. I. Marchenko; 13 females, 2 males, 3 deutonymphs, Chemal district, near of Karakol lakes, 1300 m a. s. l., 51 ̊ 30 ʹ N, 86 ̊ 23 ʹ E, Pinus sibirica –– Abies sibirica forest, in litter, 28 July 2012, leg. I. I. Marchenko; 31 females, 4 males, Severo-Chuiskii Range, Aktru Mt., 1600 m a. s. l., 50 ̊ 03 ʹ N, 87 ̊ 40 ʹ E, Pinus sibirica forest, in litter, 21 July 2013, leg. I. I. Marchenko; 12 females, 9 males, 4 larvae, Kuraiskii Range, 1840 m a. s. l., 50 ̊ 19 ʹ N, 87 ̊ 41 ʹ E, Abies sibirica –– Pinus sibirica –– Larix sibirica forest with moss, in moss, 26 August 2017, leg. I. I. Marchenko; 1 female, 1 deutonymph, Ulagan District, environs of Saratan village, along Baschkaus river, 1500 m a. s. l., 50 ̊ 25 ʹ N, 80 ̊ 27 ʹ E, Larix sibirica –– Picea obovata –– Pinus sibirica forest, in litter, 5 July 2015, leg. I. I. Marchenko; 8 females, 1 male, Kosch-Agach District, Yuzhno-Chuiskii Range, near of Tara river, 2250 m a. s. l., 49 ̊ 54 ʹ N, 88 ̊ 23 ʹ E, Larix sibirica forest and alpine tundra with Betula rotundifolia, in litter and moss, 17 July 2009, leg. I. I. Marchenko; KEMEROVO REGION, GORNAYA SCHORIA: 22 females, 5 males, Biiskaya Griva Mt., 750 m a. s. l., 52 ̊ 26 ʹ N, 88 ̊ 17 ʹ E, Betula sp. forest and Pinus sibirica forest, in litter, 28 September, leg. L. A. Trilikauskas; 39 females, 5 males, 4 deutonymphs, same geographical region, Pustag Mt., 600 m a. s. l., 52 ̊ 58 ʹ N, 87 ̊ 44 ʹ E, Abies sibirica –– Picea obovata –– Pinus sibirica forest, in litter, 18 June 2013, leg. I. I. Marchenko; 25 females, 8 males, 1 deutonymph, same geographical region, environs of Kuzedeevo village, 270 m a. s. l., 53 ̊ 22 ʹ N, 87 ̊ 13 ʹ E, Abies sibirica –– Populus tremula forest, in litter, 20 June 2013, leg. I. I. Marchenko; TUVA: 4 females, Mongun-Taiga Range, environs of Hindigtic-Kol lake, 2300 m, 50 ̊ 21 ʹ N, 89 ̊ 49 ʹ E, alpine tundra, in moss, 3 July 2013, leg. A. Kostyunin; KHAKASSIA: 6 females, West Sayan Range, 40 km from Abaza city, along Korasibo river, 700 m a. s. l., 52 ̊ 35 ʹ N, 90 ̊ 08 ʹ E, Abies sibirica –– Picea obovata –– Pinus sibirica forest, in litter, 25 June 2013, leg. I. I. Marchenko; BAIKAL REGION, BURYATIA: 8 females, 3 males, Khamar-Daban Range, Baikalskii Nature Reserve, 700 m a. s. l., 51 ̊ 33 ʹ N, 105 ̊ 09 ʹ E, Abies sibirica –– Picea obovata –– Pinus sibirica forest, in litter, 14 August 2014, leg. L. V. Petrozhitskaya; 5 females, 2 males, 2 deutonymphs, same geographical data, 1000 m a. s. l., alpine meadow, in soil, 13 August 2014, leg. L. V. Petrozhitskaya; 1 male, same geographical data, environs of Tankhoi village, 470 v a. s. l., along estuary of Pereemnaya river, Betula sp. –– Picea obovata –– Pinus sylvestris forest, in litter, 10 August 2014, leg. I. I. Marchenko; ZABAIKALSKII KRAI: 1 male, 2 deutonymphs, 1 protonymph, Kyra District, Sokhondinskii Nature Reserve, Verhnii Bukukun cordon, 1800 m a. s. l., 49 ̊ 41 ʹ N, 111 ̊ 12 ʹ E, Larix dahurica –– Pinus sibirica forest, in litter, 28 July 2016, leg. I. I. Marchenko.