Castianeira Keyserling, 1879

Kim, Byung-Woo & Lee, Woncheol, 2008, Notes on four corinnid species from Korea, with the description of Trachelas joopili new species (Arachnida: Araneae: Corinnidae), Journal of Natural History 42 (27 - 28), pp. 1867-1884 : 1868-1871

publication ID	https://doi.org/ 10.1080/00222930802124032
persistent identifier	https://treatment.plazi.org/id/03A14C47-C738-1D44-FE27-F9972F2DFA0B
treatment provided by	Felipe
scientific name	Castianeira Keyserling, 1879
status

Treatment

Genus Castianeira Keyserling, 1879 View in CoL View at ENA

Castianeira shaxianensis Gong, 1983 View in CoL

( Figures 1 View Figure 1 , 6A–E View Figure 6 )

C. shaxianensis Gong, 1983, p. 63 View in CoL , Figures 9–16 (D ♀); Song, 1987, p. 312, Figure 266 (♀); Paik, 1991c, p. 257, Figures 1 View Figure 1 –10 (♀); Yaginuma, 1991, p. 48; Song et al., 1999, p. 429, Figure 254Q-R (♀); Kamura, 2001, p. 59, Figures 31–36 (♀, D „). C. piakdoensis Kim, 1997, p. 2 , Figures 1 View Figure 1 –8 (D „). New synonymy. C. flavimaculata: Namkung, 2001, p. 454 View in CoL figure 35.1a–c („ ♀), 2003, p. 450, Figure 35.1a–c („ ♀). Misidentified. C. sp.: Yaginuma, 1960, p. 114, Figure 314 (plate 52); Yaginuma, 1986, p. 184, Figure 9 (plate 49); Chikuni, 1989, p. 128, Figure 29.

Diagnosis

This species is similar to C. flavimaculat a in having male palpal organs with the expanded distal part of long cymbium, slender and twisted embolus; female epigynal atrium a pair of ovals, situated posteriorly near the epigastric furrow; atrial septum and atrial hood absent or indistinct; epigynal teeth absent. But A. shaxianensis can be distinguished by the interval distance of both copulatory openings almost three times as wide as long (less two times in C. flavimacualta ), long and more coiled sperm duct; palp organs with more slender embolus, twisted patterns of sperm duct and large subtegulum situated on the prolateral part of tegulum of left palp.

Description

Measurements (mm). Male: Habitus length 6.7; cheliceral length 0.8, cheliceral width 0.5, cheliceral fang length 0.5; clypeal height 0.2; carapace length 3.2, carapace width 1.7, carapace height 1.0; maxillae length 0.6, maxillae width 0.4; labium length 0.4, labium width 0.3; sternum length 1.4, sternum width 0.9; AER 0.6, PER 0.7, AME 0.13, ALE 0.12, PME 0.13, PLE 0.11. Eye formula PME5AME.ALE.PLE. Palp 3.0 [0.8, 0.4, 0.4, 1.4]. First leg 7.2 [1.8, 0.7, 1.7, 1.7, 1.3], second leg 6.3 [1.6, 0.9, 1.3, 1.4, 1.1], third leg 6.0 [1.6, 0.6, 1.3, 1.5, 1.0], fourth leg 9.4 [2.2, 1.7, 2.0, 2.4, 1.1]. Leg formula IV I II III. Abdomen length 3.3, abdomen width 1.6, abdomen height 1.4.

Male. Medium-sized spider, shorter than female. Carapace elongate and shiny darkred coloured, 1.9 times as long as wide, moderately narrowed in thorax area, with distinctly longitudinal fovea ( Figure 1A View Figure 1 ). AER slightly straight and PER procurved in front view; PLE smaller than other eyes; AME separated by slightly less than their diameter, and LERC ratio 41 ( Figure 1B View Figure 1 ). Clypeal height 1.5 times as long as AME diameter and without distinct chilum ( Figure 1B View Figure 1 ). Chelicerae with numerous long setae, with three promarginal teeth on groove, middle one largest, and two retromarginal teeth of subequal size ( Figures 1C View Figure 1 , 6D View Figure 6 ). Maxillae reddish brown, widest at mid-part. Labium rectangular, slightly longer than wide ( Figure 1D View Figure 1 ). Sternum long shield-shaped, widest between second coxae, not produced between fourth coxae ( Figure 1E View Figure 1 ). Palp ( Figure 1F–I View Figure 1 ) without tarsal claw; tibia with two trichobothria on retrolateral part, tarsus with two trichobothria on prolateral; femur with two spines (0-0-2, dorsally), tibia with two spines (2-0, prolaterally), tarsus with two spines (2-0-0, prolaterally). Legs yellowish brown; length (patella+tibia) of first leg always shorter than carapace length; trochanter notched; tibiae with 10–13 trichobothria in four rows (3p-3d-3d-4r on first leg, 2p-3d-4d-6r on second, 1p-2d- 1d-5r on third, 1p-3d-2d-5r on fourth), metatarsi with five to seven trichobothria in one row (five on first and second leg, six on third, seven on fourth), tarsi with 5–10 trichobothria in one or two rows (five on first and second leg, six on third, 10 on fourth); tarsal organ situated close to distal end of tarsus, slightly anterior part of distal trichobothrium; tarsi with two claws bearing several teeth and claw tufts of spatuate setae. Leg spination: Leg I: Femur with four spines, tibia with four spines (2-2-0 ventrally), metatarsus with four spines (2-2-0 ventrally), tarsus without spine; leg II: Femur with five spines, tibia with seven spines (one, 0-0-1 prolaterally; six, 1- 3-2 ventrally), metatarsus with five spines (2-2-1 ventrally), tarsus without spine; leg III: Femur with five spines, tibia with three spines (one, 0-0-1 prolaterally; one, 1-0-0 retrolaterally; one, 0-0-1 ventrally), metatarsus with 11 spines (three, 1-0-2 prolaterally; three, 1-1-0-1 retrolaterally; five, 2-1-2 ventrally), tarsus without spine; leg IV: Femur with six spines, tibia with 13 spines (one, 0-0-1 dorsally; three, 1- 1-1 prolaterally; two, 1-0-1 retrolateral; seven, 2-1-2-2 ventrally), metatarsus with 14 spines (four, 1-1-2 prolaterally and retrolaterally; six, 2-4 ventrally), tarsus without spine. Abdomen elongate ovoid and shiny dark-red coloured, with transverse pattern of white scalelike setae, with dorsal, epigastric and ventral scuta ( Figure 1J–K View Figure 1 ).

Male palp ( Figures 1G–J View Figure 1 , 6A–C View Figure 6 ). Femur and patella without apophysis; tibia slightly longer than wide, rectangular ridge prolateromesally; cymbium rounded at base, long and slender bent distally, and without cymbial furrow; tegulum rounded at base, long and slender distally, enclosing long twisted loop of sperm duct from embolus to subtegulum with reservoir; no conductor and median apophysis; embolus long, slender, spirally coiled and reached at the top of cymbium, connecting with question mark (?)-shaped embolus tip.

Specimens examined

Four females (KMU), 24 July, 1980, Isl. Geomundo, Jeollanam-do, one female, 26 July , 1980, leg. T. H. Jo ; one male ( AIK), 15 August, 1995, Isl. Paiklyeongdo , Gyeonggi-do, leg. J.P. Kim ; one male ( LBHU), 5 June , 2001, leg. T. S. Kwon , two male ( LBHU), 26 June, 2003, Haman, Gyongsannam-do , leg. B.W. Kim ; one male ( NIBR), 6 June, 2005, Okgye, Gangwon-do , leg. T. S. Twon .

Distribution

Korea (Isl. Geomundo, Isl. Paiklyeongdo, Haman, Okgye), China (Hukein), Japan (Honshu).

Remarks

The male of C. shaxianensis is redescribed with a variety of characters (leg spination, trichobothrial patterns etc.) neglected in the original description.

Genus Trachelas L. Koch, 1872