Gasteracantha kuhli C. L. Koch, 1837

Macharoenboon, Kongkit, Siriwut, Warut & Jeratthitikul, Ekgachai, 2021, A review of the taxonomy of spiny-backed orb-weaving spiders of the subfamily Gasteracanthinae (Araneae, Araneidae) in Thailand, ZooKeys 1032, pp. 17-62 : 17

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Gasteracantha kuhli C. L. Koch, 1837


Gasteracantha kuhli C. L. Koch, 1837 Figures 8 View Figure 8 , 11J-L View Figure 11

Gasteracantha kuhli C. L. Koch, 1837: 20, fig. 262. Type locality: Indonesia, Java.

Gasteracantha kuhli Full list of synonyms and usage of the name available in World Spider Catalog (2020).


Thailand • 5 ♀; Nakhon Ratchasima Province, Pak Chong District; 14°31.10'N, 101°24.00'E; MUMNH-ARA-GAS002 GoogleMaps 5 ♀; Ubon Ratchathani Province, Na Chaluai District, Dom Yai Canal; 14°41.25'N, 105°09.27'E; MUMNH-ARA-GAS003 GoogleMaps 2 ♀; Kanchanaburi Province, Si Sawat District; 14°26.49'N, 99°08.06'E; MUMNH-ARA-GAS004 GoogleMaps 2 ♀; Surat Thani Province, Ko Pha-ngan District, Koh Tao Is.; 10°04.04'N, 99°49.10'E; MUMNH-ARA-GAS005 GoogleMaps 5 ♀; Samut Prakan Province, Phra Pradaeng District, Bang Kachao; 13°41.50'N, 100°33.46'E; MUMNH-ARA-GAS005 GoogleMaps 1 ♀; Surat Thani Province, Phanom District, Khlong Sok; 08°54.20'N, 98°31.81'E; MUMNH-ARA-GAS007 GoogleMaps 4 ♀; Kanchanaburi Province, Sai Yok District; 14°24.93'N, 98°52.54'E; MUMNH-ARA-GAS027 GoogleMaps 5 ♀; Ratchaburi Province, Suan Phueng District; 13°33.03'N, 99°17.14'E; MUMNH-ARA-GAS029 GoogleMaps 5 ♀; Ratchaburi Province, Suan Phueng District , Pachi Stream; 13°31.18'N, 99°18.88'E; MUMNH-ARA-GAS030 GoogleMaps 5 ♀; Samut Prakan Province, Phra Pradaeng District, Bang Kachao; 13°41.85'N, 100°33.93'E; MUMNH-ARA-GAS033 GoogleMaps 4 ♀; Trang Province, Mueang District, Ban Pho; 07°34.18'N, 99°39.16'E; MUMNH-ARA-GAS039 GoogleMaps 2 ♀; Ranong Province, Suk Samran District , Na Kha; 09°23.75'N, 98°25.75'E; MUMNH-ARA-GAS040 GoogleMaps 5 ♀; Krabi Province, Mueang District, Krabi Noi; 08°07.54'N, 98°55.50'E; MUMNH-ARA-GAS042 GoogleMaps 5 ♀; Phrae Province, Mueang District; 18°08.58'N, 100°07.81'E; MUMNH-ARA-GAS046 GoogleMaps 4 ♀; Mae Hong Son Province, Mueang District, Pang Mu; 19°18.12'N, 97°57.58'E; MUMNH-ARA-GAS048 GoogleMaps 2 ♀; Mae Hong Son Province, Mae La Noi District, Mae La Luang ; 18°32.31'N, 97°53.83'E; MUMNH-ARA-GAS049 GoogleMaps 1 ♀; Loei Province, Mueang District, Kok Thong; 17°30.53'N, 101°35.83'E; MUMNH-ARA-GAS054 GoogleMaps 1 ♀; Loei Province, Pak Chom District , Huai Bo Suen; 17°44.78'N, 101°58.33'E; MUMNH-ARA-GAS055 GoogleMaps 5 ♀; Udon Thani Province, Nam Som District; 17°46.93'N, 102°06.02'E; MUMNH-ARA-GAS056 GoogleMaps 1 ♀; Nakhon Ratchasima Province, Mueang District, Suranari University; 14°52.97'N, 102°01.27'E; MUMNH-ARA-GAS057 GoogleMaps 5 ♀; Prachuap Khiri Khan Province, Bang Saphan District, Khao Ma Rong Cave ; 11°12.17'N, 99°29.65'E; MUMNH-ARA-GAS060 GoogleMaps 2 ♀; Chumphon Province, Tha Sae District, Pisadarn Cave ; 10°45.60'N, 99°13.77'E; MUMNH-ARA-GAS063 GoogleMaps 2 ♀; Surat Thani Province, Khiri Rat Nikhom District, Wang Badarn Cave ; 08°54.52'N, 98°57.83'E; MUMNH-ARA-GAS066 GoogleMaps 1 ♀; Sa Kaeo Province, Khlong Hat District, Phet Pho Thong Cave ; 13°24.80'N, 102°19.55'E; MUMNH-ARA-GAS072 GoogleMaps 1 ♀; Lopburi Province, Mueang District, Kok Toom; 14°48.80'N, 100°47.63'E; MUMNH-ARA-GAS074 GoogleMaps 1 ♀; Lopburi Province, Mueang District, Phra Tad Cave ; 14°48.40'N, 100°49.48'E; MUMNH-ARA-GAS075 GoogleMaps 1 ♀; Chanthaburi Province, Mueang District, Khlong Narai; 12°35.48'N, 102°09.45'E; MUMNH-ARA-GAS078 GoogleMaps 2 ♀; Nakhon Nayok Province, Pak Phli District , Khun Dan Prakarn Chon Dam; 14°18.88'N, 101°19.27'E; MUMNH-ARA-GAS080 GoogleMaps 4 ♀; Kanchanaburi Province, Si Sawat District , Ong-ju Canal; 14°48.45'N, 99°05.53'E; MUMNH-ARA-GAS084 GoogleMaps 1 ♀; Phetchabun Province, Si Thep District, 15°28.52'N, 100°58.53'E; MUMNH-ARA-GAS085 GoogleMaps 1 ♀; Phetchabun Province, Lom Sak District; 16°43.73'N, 101°20.22'E; MUMNH-ARA-GAS087 GoogleMaps 2 ♀; Loei Province, Wang Saphung District , Pha Bing, 17°14.05'N, 101°45.63'E; MUMNH-ARA-GAS089 GoogleMaps 4 ♀; Phetchabun Province, Wichian Buri District , Wat Tham Thep Bandan, 15°45.42'N, 101°02.27'E; MUMNH-ARA-GAS090 GoogleMaps 2 ♀; Loei Province, Wang Saphung District , Pha Bing; 17°14.47'N, 101°44.25'E; MUMNH-ARA-GAS091 GoogleMaps 2 ♀; Loei Province, Chiang Khan District , Bu Hom; 17°55.05'N, 101°45.13'E; MUMNH-ARA-GAS092 GoogleMaps 1 ♀; Loei Province, Phu Kradueng District , Pha Nok Khao; 16°53.65'N, 101°57.28'E; MUMNH-ARA-GAS093 GoogleMaps 2 ♀; Phetchabun Province, Mueang District, Wat Nam Pang Cave ; 16°14.77'N, 101°08.17'E; MUMNH-ARA-GAS094 GoogleMaps 3 ♀; Chaiyaphum Province, Phakdi Chumphon District, Wua Daeng Cave ; 16°04.55'N, 101°26.45'E; MUMNH-ARA-GAS095 GoogleMaps 3 ♀; Loei Province, Nong Hin District; 17°02.42'N, 101°44.18'E; MUMNH-ARA-GAS098 GoogleMaps 3 ♀; Chiang Mai Province, Mae Rim District, Mae Raem; 18°55.10'N, 98°54.52'E; MUMNH-ARA-GAS101 GoogleMaps 1 ♀; Chiang Mai Province, Mueang District; 18°46.93'N, 98°57.53'E; MUMNH-ARA-GAS103 GoogleMaps 2 ♀; Kanchanaburi Province, Thong Pha Phum District, Huai Kayeng; 14°37.85'N, 98°34.32'E; MUMNH-ARA-GAS110 GoogleMaps 1 ♀; Ratchaburi Province, Mueang District, Nam Phu; 13°33.47'N, 99°36.97'E; MUMNH-ARA-GAS114 GoogleMaps 2 ♀; Chiang Rai Province, Mae Fa Luang District; 20°14.23'N, 99°49.42'E; MUMNH-ARA-GAS123 GoogleMaps 3 ♀; Chiang Mai Province, Chiang Dao District; MUMNH-ARA-GAS124 .


Sternum black with dull yellow hoof-shaped patch. Abdomen octagonal, slightly wider than long. Dorsal side of abdomen with black and white patches. Edge of abdomen smooth. Three pairs of spines similar in shape. Bases of anterior spines and median spines fused. Ventral side of abdomen blackish brown with scattered chalky yellow stripes. Anterior edge with ten sigilla in total: four sigilla in the middle, three sigilla on each side, placed near the base of anterior spines. Four median sigilla arranged in trapezoid shape. Posterior edge with ten sigilla in total: six sigilla in the middle near posterior margin, forming a straight line, the pair in the middle closely placed. Outer posterior edge with five sigilla, placed near posterior spines. Epigynum subtriangular with small subtriangular scape (Fig. 11F View Figure 11 ). Spermathecae round (Fig. 11G View Figure 11 ), ventrally partially overlapped by unconnected sclerotized structures on each side (Fig. 11H View Figure 11 ). Copulatory ducts encapsulated by sclerotized structure (Fig. 11G View Figure 11 ). Fertilization ducts emerging posteriorly from spermathecae (Fig. 11G View Figure 11 ).


Color patterns on the abdomen of G. kuhli are variable, but commonly with inverse Y-band markings on the dorsal abdomen (Fig. 8A-C View Figure 8 ). Another morph is pale orange (Fig. 8D View Figure 8 ). This morph is newly discovered in this study. Its description is as follows: cephalothorax blackish brown with large dull yellow patches on each side, slightly longer than wide, clothed with short white hairs. Cephalic region highly elevated and abruptly sloped downward posteriorly, thoracic region overlapped by anterior side of abdomen. Eight eyes arranged into two rows subequal in size, located above the frontal margin: four median eyes form a trapezoid and are placed on a small protuberance at the middle of frontal margin, lateral eyes on each side placed on a tubercle near corner of frontal margin. Sternum dark brown with large hoof-shaped patch. Abdomen slightly wider than long, pale beige with small brown spots on margin. Six abdominal spines orangish brown, conical, tapering toward the tip. Anterior spines smallest, directed obliquely. Median spines pointed obliquely. Posterior spines largest, pointed backward with small brown spots near the bases. Ventral side of abdomen pale orange with scattered brown granules. Sigilla orangish brown. Ten anterior edge sigilla in total: six sigilla in the middle, two sigilla on each side near the base of anterior spines. Four median sigilla arranged in trapezoid. Ten posterior edge sigilla in total, the pair in the middle placed close together. Outer posterior edge with five sigilla near posterior spines.

Distribution and habitat.

Bhutan, China, Japan, Korea, Hong Kong, Taiwan, Cambodia, Thailand, Myanmar, Andaman and Nicobar Islands, Indonesia (Java, and Sumatra), Phi1ippines, and Singapore ( Barrion and Litsinger 1995; Sen et al. 2015; World Spider Catalog 2020). Gasteracantha kuhli can be found in several habitats such as paddy fields, dipterocarp forest, dry evergreen forest and agriculture areas. The female spider builds a vertical web between shrubs or trees in open areas. The spiders sit at the center of web with head pointed downwards.














Gasteracantha kuhli C. L. Koch, 1837

Macharoenboon, Kongkit, Siriwut, Warut & Jeratthitikul, Ekgachai 2021

Gasteracantha kuhli

C. L. Koch 1837

Gasteracantha kuhli

C. L. Koch 1837