Metadentobunus garampiensis Suzuki, 1944

Chen, Ssu-Li & Shih, Hsi-Te, 2018, A Review of the Harvestman Genus Metadentobunus (Opiliones: Sclerosomatidae: Gagrellinae) with A Description of A New Species From Taiwan, Zoological Studies 57 (57), pp. 1-16 : 4-9

Metadentobunus garampiensis Suzuki, 1944

( Figs. 2-3 )

Metadentobunus garampiensis Suzuki, 1944: 253-255 , figs. 4-5 (type locality: Oluanpi, Kenting National Park, Taiwan); Suzuki 1970: 33 (list).

Metadentobunus formosae garampiensis - Suzuki, 1977: 137- 139, fig. 7 (Kenting Botanical Garden, Kenting National Park, Taiwan); Li and Song 1993: 241 (list).

Type material: Neotype: 1 S (NCHUZOOL 14584), Sheding, Kenting National Park, Hengchun, Pingtung, Taiwan, 21°57'30.69"N, 120°48'42.41"E, elevation of 206 m, coll. S.-P. Wu, 16 July 2016.

Other material examined from Taiwan: 1 S (NCHUZOOL 14498) and 1 S (NCHUZOOL 14598), Tengjhih, Taoyuan, Kaohsiung, 23°03'54.74"N, 120°45'34.79"E, elevation of 1616 m, coll. S.-L. Chen, 9 May 2015; 1 S (NCHUZOOL 14499) and 1 $ (NCHUZOOL 14597), Tengjhih, Taoyuan, Kaohsiung, 23°03'54.74"N, 120°45'34.79"E, elevation of 1616 m, coll. S.-L. Chen, 7 Sep. 2014; 2 $ (NCHUZOOL 14500) and 1 $ (NCHUZOOL 14583), Kenting National Park, Hengchun, Pingtung, 21°57'30.69"N, 120°48'42.41"E, elevation of 206 m, coll. S.-P. Wu, 26 July 2016; 1 $ (NCHUZOOL 14501), Kenting National Park, Hengchun, Pingtung, 21°57'30.69"N, 120°48'42.41"E, elevation of 206 m, coll. S.-P. Wu, 24 July 2016; 1 $ 3 Juveniles (NCHUZOOL 14502), Kenting National Park, Hengchun, Pingtung, 21°57'30.69"N, 120°48'42.41"E, elevation of 206 m, coll. S.-P. Wu, 23 Aug. 2016; 1 S (NCHUZOOL 14581) and 1 $ (NCHUZOOL 14582), Kenting National Park, Hengchun, Pingtung, 21°57'30.69"N, 120°48'42.41"E, elevation of 206 m, coll. H.-Y. Chang, 19 Aug. 2015; 1 $ (NCHUZOOL 14593), Jhihben Forest Trail, Beinan, Taitung, coll. S.-P. Wu, 29 Apr. 2016.

Etymology: The name garampiensis was derived from the Japanese pronunciation of type locality (Oluanpi = Eluanbi = Ngoluanpi, in Kenting National Park).

Diagnosis: Male: ocularium with one pair of sharp and long spines at frontal margin ( Fig. 3 D- E). Patella of pedipalp with an inner apophysis at tip ( Fig. 2G ). Patella of pedipalp with numerous sharp-tipped tubercles dorsally. Shaft long, parallel at base ( Fig. 3G ). Female: seminal receptacle at 6th-7th segment of ovipositor, with three ampullas terminally ( Fig. 3L ). Genital operculum of female protruding from frontal margin ( Fig. 3M ).

Description: Male neotype. Dorsal surface of body granulated. Supra-cheliceral lamellae tipped with 4-5 small tubercles ( Fig. 2E ). Abdomen with 1 short median spine on the second tergite. Ocularium rectangle, length larger than width, constricted basally, with one pair of sharp and long spines at frontal margin ( Fig. 3 D-E). Frontal spines of ocularium smooth except sparse short hairs. All free sternites and genital operculum smooth. Surface of all coxae with scattered coarse granules. Coxa I and Coxa IV with a row of humps anteriorly and posteriorly; Coxa II and Coxa III with a row of humps anteriorly.

Chelicera ( Fig. 3 J-K). Basal segment with a ventral spur below, 14-15 tubercles dorsally and a row of tubercles at inner side. Distal segment with setae above, outer side smooth, inner side with setae.

Pedipalp ( Fig. 3 A-B). All segments with lots of setae, excepting trochanter. Trochanter with 4 tubercles ventrally and 1 spine-like tubercles dorsally. Femur with numerous tubercles ventrally, inner side with a row of tubercles. Patella thickened distally, with an inner apophysis at tip, numerous sharp-tipped tubercles dorsally ( Fig. 2G ). Tibia covered with many simple setae especially in inner tip. Tarsus elongated, with a row of tubercles at inner side ( Fig. 3A ). Claw pectinate.

Legs. All legs slim and elongate. Trochanters mound-shaped ( Fig. 2 A-B), femora II with two false articulations, tarsus longer than tibia.

Penis ( Fig. 3 G-H). Shaft 2.6 long, 0.28 wide at base, 0.28 wide at middle; glans 0.23 long, 0.1 wide at base. Shaft long, parallel at base; alate part with sacs ( Fig. 3G ). Glans widest at base. Stylus acicular.

Female (NCHUZOOL 14583): Dorsal surface of body similar to male, excepting abdomen of female longer than male ( Fig. 2 C-D). Frontal spines of ocularium with tubercles and sparse short hairs. Supra-cheliceral lamellae tipped with 3-4 small tubercles ( Fig. 2F ). Trochanter of pedipalps with 4 tubercles ventrally. Pedipalpal femur with a longitudinal row of tubercles at inner side, tibia normal with covering of many hairs entirely ( Fig. 3C ). Inner-tip apophysis of pedipalpal patella longer than male. Pedipalpal tibia of female with a small apophysis at inner tip ( Fig. 2H ). Genital operculum protruding from frontal margin ( Fig. 3M ). Seminal receptacle (NCHUZOOL 14501, Fig. 3L ; NCHUZOOL 14593) located in 6th-7th segment of ovipositor, terminal with three ampullas.

Measurements: Neotype male (female of NCHUZOOL 14583): Cephalothorax 1.12 (1.58) long, 2.72 (3.45) wide; abdomen 2.73 (3.87) long, 2.84 (3.68) wide. Total length of body 3.85 (5.45). Measurements of left pedipalp and legs are shown in table 2.

Coloration: Male. Dorsum golden yellow with granules ( Fig. 2 A-B). Carapace golden yellow with small light brown flecks along frontal and lateral edge. Ocularium golden yellow, with white eye rings. Coxa of all legs golden yellow, edge brown. Genital operculum golden yellow, light yellow base, distal edge light yellow, edge brown. Sternites pale yellow, whiten posterior. Chelicerae pale yellow, basal segment with brown spots dorsally. Pedipalps pale yellow, with femora and patellae brown. All legs brown with golden yellow rings. Female similar with male, but darker ( Fig. 2 C-D).

Variation: One male specimen (NCHUZOOL 14581) has frontal spines with finely granulated tip on ocularium. In addition, the specimen (NCHUZOOL 14598) from Tengjhih have slightly different morphology of penis, i.e. alate part with longer sacs ( Fig. 3I ).

Distribution: Southern Taiwan ( Fig. 7 ).

Habitat: The specimens were found on tree trunks, which appeared to be one of their habitats.

Remarks: After examining of a series of specimens, we found the character of frontal spines on ocularium with finely granulated tip is variable, which is different from Suzuki’s description (1977).

Figures

Fig. 2. Metadentobunus garampiensis Suzuki, 1944. Male (neotype, NCHUZOOL 14584). A, B: dorsal and lateral view of neotype; E: supra-chelicera lamellae of male; G: dorsal view of male left pedipalp. Female (NCHUZOOL 14583). C, D: dorsal and lateral view of body; F: supra-chelicera lamellae; H: dorsal view of left pedipalp. Scale bar = 1 mm.

Fig. 3. Metadentobunus garampiensis Suzuki, 1944. Male (neotype, NCHUZOOL 14584). A, B: inner and outer side of left pedipalp; D, E: dorsal and lateral views of ocularium; G, H: ventral and lateral views of penis; I: different morphology of penis from Tengjhih, ventral view (NCHUZOOL 14598); J: inner side of left chelicera; K: outer side of left chelicera. Female (NCHUZOOL 14583). C: inner side of female left pedipalp; F: lateral view of ocularium; L: female seminal receptacle (NCHUZOOL 14501); M: ventral view of female genital operculum (NCHUZOOL 14583). s: stylus; g: glans; ap: alate part. Scale bars: A-C, G-K, M = 1 mm; D, E, F = 0.5 mm; L = 0.1 mm.

Fig. 7. The collection sites for the species of Metadentobunus in Taiwan. Numbers beside the symbols correspond to the collection sites in table 1 and figure 6. In addition, the numbers 12 and 13 mean the sites for Cingjing, Nantou and Lugang (= Rokko), Changhua, respectively.