Arctorthezia cataphracta (Olafsen, 1772)

Szita, Eva, Kaydan, Mehmet Bora, Benedicty, Zsuzsanna Konczne, Tanaka, Hirotaka, Fetyko, Kinga & Kozar, Ferenc, 2015, The genus Arctorthezia Cockerell (Hemiptera, Ortheziidae) with the description of a new species, ZooKeys 472, pp. 59-75: 62-65

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Arctorthezia cataphracta (Olafsen, 1772)


Taxon classification Animalia Hemiptera Ortheziidae

Arctorthezia cataphracta (Olafsen, 1772)   Figs 2, 5 b–c, 6 c–d

Material examined.

Austria: 1 female, Kesselspitze Mt., 3.vii.1999, leg. K. Thaler [PPI 6545]. Greenland: 2 females on 1 slide, s-o, Nanortalik, dwarf willow, 26.vii.1979, leg. G. Primatesta [PPI 8933, MHNG nr.7]; 1 female at Boston, Sedum   sp.,, leg. Hodson [PPI 8967, USNM 45 1781]. Italy: 2 females on 2 slides, Piedmont, Monte Autoroto, 1700 m a.s.l.,, leg. A. Focarile [PPI 9854, MHNG 13]. Japan: 1 female, Tochigi, Nikkô, Kawamata, Nikkô-zawa-onsen, 1500 m a.s.l., Dryopteris crassirhizoma   ,, leg. S. Maehara. (collected by beating) [TRPM]; 1 female, same locality, Dryopteris crassirhizoma   , 2.vii.2013, leg. S. Maehara. (collected by beating) [TRPM]. Mongolia: 1 female, Bogdo,, leg. Z. Kaszab [HNHM As 77]. Switzerland: 2 females on 2 slides, Valais, Gornergat, 3050 m a.s.l., under stones, 12.ix.1982, leg. C. Besuchet [PPI 8857, MHNG without code]; 3 females on 3 slides, Valais, Fluhalp, near Leuerbad, 2000 m a.s.l., mosses and dead leaves, 14.viii.1980, leg. C. Besuchet [PPI 8858, MHNG without code]; 2 females on 2 slides, Obwald, Melchsee, 1800 m a.s.l., mosses, 2.x.1987, leg. I. Löbl [PPI 8861, MHNG without code]; 4 females on 4 slides, Valais, Tursten, s/Zermatt, 2200 m a.s.l., 14.vii.1966, leg. A. Comellini [PPI 8863]; 5 females on 5 slides, Valais, Saas-Almagell, 1650 m a.s.l., wet mosses, 5.vii.1997, leg. C. Besuchet [PPI 8866, MHNG without code]; 2 females on 2 slides, Valais, Grand St. Bernard, 2150 m a.s.l., mosses at foot of rocks, 10.ix.1996, leg. C. Besuchet [PPI 8873, MHNG without code]; 1 female, at N.Y., on lichens around Rhododendron   , 12.vii.1938, leg. Harley [PPI 8968, USNM 98-2244, NY77615]; 1 female, Valais, Torrenthorn, near Lukerbad, 2500-2600 m a.s.l., alpine meadows, 12.viii.1980, leg. C. Besuchet [PPI 8870, MHNG without code]; 1 female, Studen, moss, 20.ix.1992, leg. F. Kozár [PPI 4071]; 1 female, Romoos, Weise, 23.viii.1994, leg. Rézbányai [PPI 6144, HNHM]; 2 females on 1 slide, Romoos, Weise, 28.iv.1994, leg. Rézbányai [PPI 6143]. Turkey: 1 female, Ilgardagi Gecidi, 2350 m a.s.l.,, leg. Löbl, Besuchet, Burckhardt [PPI 8881, MHNG without code]; 2 females on 2 slides, Kars, Ilgandas, Gecidi, on herbs and flowers,, leg. Löebl & Bernhardt [MHNG 10699/1-2 II]. UK: 2 females on 1 slide, Scotland, N. Berwich, E. Lothian, under moss,. ix.1926, leg. E.E. Green [PPI 8965, USNM without code]; 1 female, Scotland, Braemar, at base of grass, 8.viii.1979, leg. J.N. Cox [USNM 5/79].


Pediculus cataphractus   Olafsen, Coccus cataphracta   (Shaw), Dorthezia cataphracta   (Shaw), Orthezia cataphracta   (Shaw), Dorthesia chiton   Zetterstedt, Orthezia signoreti   White, Coccus uva   (Modeer), Orthezia uva   (Modeer), Orthezia (Arctorthezia) cataphracta   , Cockerell, Coccus cataphractus   Lindinger ( Ben-Dov et al. 2014, Kozar 2004).


Live adult female: dorsum with 9 pairs dorsal wax plates in each marginal row, 8 pairs in each submedian band, and 3 small triangular or shield-shaped ones in middle of thorax. Ovisac parallel sided, short, about half length of body (Fig. 5 b–c).

Slide-mounted adult female (Figs 2, 6 c–d). Body elongate oval, 2.0‒2.9 mm long, 1.5‒2.7 mm wide. Antenna 8 - (rarely 6 or 7) segmented. Measurements of antennal segments: 1st 189-273, 2nd 144-210, 3rd 102-145, 4th 64-110, 5th 61-93, 6th 67-90, 7th 70-115, and apical segment 176-220 mm long, apical spine of antenna 11-20 mm long, subapical seta absent; fleshy sensory seta near apical seta 13-21 mm long; all segments of antenna covered with very robust, spine-like setae, the longest spine 21-37 mm long; first antennal segment with 0-2 spines on each side of segment. Eyes conical, well separated from base of first antennal segment.

Venter: Labium 285-350 mm long, apparently one segmented. Stylet loop usually longer than labium. Legs well developed; leg measurements: coxa length: front 186-310 mm long, middle 192-300 mm, hind 224-330 mm; front trochanter+femur 623-800 mm long, middle 647-820 mm, hind 705-883 mm; front tibia+tarsus 423-991 mm long, middle 448-994 mm, hind 548-1165 mm; front claw 82-106 mm long, middle 96-108 mm, hind 97-120 mm; hind claw digitules each 26-39 mm. Legs each with rows of robust spine-like setae, with a fleshy sensory seta on hind tibia, trochanter with 4 placoid sensilla on each surface. Wax plates present on ventral areas of head and thorax, and wide marginal plate laterad of each thoracic spiracle; two wax plates present between mid-coxae, both in triangular shape, anterior one relatively small and longer than wide (Fig. 6c); with 3 spine rows within ovisac band. Thoracic spiracles each with wide band of disc pores inside atrium. Setae few, scattered in medial areas of thorax, with several setae near anterior edge of ovisac band and associated with simple pores. Ovisac band narrow, indented in the middle. Multilocular pores each with 4 loculi around perimeter and 1 loculus in central hub, 4-5 mm in diameter; present in 3 complete bands near posterior edge of each spine band, and scattered around vulva.

Dorsum: Wax plates cover entire dorsum; three triangular wax plates on mid-dorsum, anterior 40-130 mm wide, 60‒195 mm long; middle 60‒120 mm wide, 90‒250 mm long; posterior 80‒110 mm wide, 90‒240 mm long, (Fig. 6d). Spines at margin of wax plate each 14-20 mm long, apically capitate. A few setae present in marginal clusters near posterior edges of marginal wax plates; with 3‒6 setae laterad of thoracic spiracles, longest seta 17-20 mm long; also present in very small numbers on other wax plates and in medial bare area. Multilocular pores generally each with 4 loculi around perimeter, one loculus in central hub, sparsely present in wax plates. Abdominal spiracles numbering 8 pairs on the margin, last 3 situated in posterior apical spine clusters. Anal ring 120-132 mm long and 118-146 wide, bearing 6 blunt anal ring setae, each seta 136 mm long.


Austria, Belgium, Canada, Czech Republic, Denmark (Faeroe Islands), Estonia, Finland, France, Georgia, Greece, Greenland, Iceland, Ireland, Italy, Japan, Mongolia, Norway, Poland, Romania, former Soviet Union, Spain, Sweden, Switzerland, U.K., Ukraine, U.S.A. (Alaska).


Host plants: Alnus viridis   ( Betulaceae  ), Caltha   sp. ( Ranunculaceae  ), Capparis   sp. ( Capparaceae  ), Calamagrostis langsdorfii   , Carex   sp., Deschampsia caespitosa   ( Poaceae  ), Chrysanthemum alpinum   , Hieracium   sp., Hymogyne   sp., Solidago   sp. ( Asteraceae  ), Dryas octopetala   ( Rosaceae  ), Gentiana   sp. ( Gentianaceae  ), Geranium   sp. ( Geraniaceae  ), Iris setose   ( Iridaceae  ), Racomitrium lanuginosum   ( Grimmiaceae  ), Calluna vulgaris   , Rhododendron ferrugineum   , Vaccinium myrtillus   ( Ericaceae  ), Saxifraga aizoon   ( Saxifragaceae  ), Saxifraga cuneifolia   , Saxifraga oppositifolia   , Sedum   sp. ( Crassulaceae  ), Soldanella   sp. ( Primulaceae  ), Trientalis europaea   ( Myrsinaceae  ), and Collybia   sp. ( Fungi  : Tricholomataceae  ). Under mosses ( Sphagnum   sp.: Sphagnaceae  ) and stones on roots, also reported from ant nests ( Ben-Dov et al. 2014, Kozár 2004). In Primorsky region of Russia ( Danzig 1980) and Japan, some individuals were observed on ferns.