Pholcus maepo Lee & Lee, 2024
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publication ID |
https://doi.org/ 10.11646/zootaxa.5432.2.3 |
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publication LSID |
lsid:zoobank.org:pub:8B157EDE-7ADB-4AC0-8C98-66D68D8EB27B |
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DOI |
https://doi.org/10.5281/zenodo.10960179 |
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persistent identifier |
https://treatment.plazi.org/id/0387A476-7D06-B050-FF29-27D67283FE44 |
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treatment provided by |
Plazi |
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scientific name |
Pholcus maepo Lee & Lee |
| status |
sp. nov. |
Pholcus maepo Lee & Lee , sp. nov.
Figs 1Q–R View FIGURE 1 , 2Q–R View FIGURE 2 , 11, 16M–R, 18
Type material. Holotype: ♂, SOUTH KOREA : Chungcheongbuk-do: Danyang-gun, Maepo-eup, near oriental arborvitae forest in Yeongcheon-ri (37˚03'40"N, 128˚18'07"E, 190 m), 17 Jun. 2017, Doo-Yeong Choi leg. ( NIBR) . Paratypes: 3♀♀, same data as holotype (KNU-Ar 20230085–87) ; 2♂♂, same data as holotype (KNU-Ar 20230088– 89) ; 8♂♂ 19♀♀, same data as holotype (KNU-kise 736) .
Etymology. The specific epithet is derived from the type locality, Maepo-eup. Noun in apposition.
Diagnosis. Males similar to Pholcus sokkrisanensis Paik, 1978 , having membranous and spatulate dorsal process, triangular prolateral process distally with single pointed projection ( Fig. 11D View FIGURE 11 ), and half-heart shaped uncus ( Fig. 11F View FIGURE 11 ), but can be distinguished by: 1) prolateral process of procursus distally with large dagger-like projection, submarginally with thick linear sclerotized mark ( Fig. 11D View FIGURE 11 ) (distally with small spur, marginally with thin sclerotized mark in P. sokkrisanensis , see Paik 1978: fig. 40); 2) uncus inner margin slightly sinuated, without projection (strongly concave, with single pointed projection in P. sokkrisanensis , see Paik 1978: fig. 41). Females similar to Pholcus simbok Huber, 2011 , having triangular epigynal anterior plate, pair of oval sclerotized areas on epigynal posterior plate ( Fig. 11H View FIGURE 11 ), and enlarged lateral concave area with anterior portion elongated ( Fig. 11I View FIGURE 11 ), but can be distinguished by: 1) epigynal anterior plate sclerotized only anteromedially ( Fig. 11H View FIGURE 11 ) (entirely sclerotized in P. simbok , see Huber 2011: fig. 2145); 2) anterior portion of lateral concave area strongly elongated, more than twice as long as posterior portion ( Fig. 11I View FIGURE 11 ) (slightly longer than posterior portion in P. simbok , see Huber 2011: fig. 2146).
Description. Male (holotype). Habitus as in Fig. 1Q. View FIGURE 1 Total length 5.4. Prosoma 1.6 long, 1.7 wide. Carapace round, pale yellow, with dark brown radial marks and marginal band on thoracic area. Eye area slightly elevated, posteriorly with dark brown marks laterally and medially. Diameter of AME 125 µm, ALE 171 µm, PME 146 µm, PLE 154 µm. AME–AME 51 µm, PME–PME 242 µm, PME–ALE 29 µm. Clypeus with large brown mark, without process. Chelicera ( Fig. 2Q–R View FIGURE 2 ) with thumb-like proximo-lateral apophysis, stout, blunt, and ventrally curved frontal apophysis, and ventrally curved, notched triangular distal apophysis longer than proximo-lateral apophysis. Sternum longer than wide, shield-like, pale yellow with brown marks laterally and posteriorly. Opisthosoma 3.7 long, 2.0 wide, cylindrical, pale yellow, without cuticular patterns, with cardiac pattern and many black granular spots dorsally and laterally. Leg femora and tibiae yellowish brown with two whitish and two dark brown bands distally, two dark brown bands proximally; patellae, metatarsi, tarsi dark brown, without bands; leg Ⅰ femur distinctly darker. Leg Ⅰ 46.1 (11.8 + 0.8 + 11.9 + 19.3 + 2.4), leg II 30.2 (8.6 + 0.7 +7.7 + 11.7 + 1.5), leg III 20.2 (6.0 + 0.7 + 4.9 + 7.6 + 1.0), leg IV 27.8 (8.3 + 0.7 + 6.9 + 10.7 + 1.3). Ratio of leg Ⅰ (15.1: 1.0: 15.3: 24.7: 3.0), leg II (12.1: 1.0: 10.9: 16.5: 2.1), leg III (9.1: 1.0: 7.5: 11.5: 1.6), leg IV (12.3: 1.0: 10.3: 16.0: 1.9). Leg formula 1243. Tibia Ⅰ L/d 85. Tibiae, metatarsi, tarsi with short vertical setae, tibiae and metatarsi Ⅰ, II with long curved hairs. Tibiae with three trichobothria, except tibia Ⅰ (prolaterally absent). Retrolateral trichobothrium on tibia Ⅰ at 4% proximally. Tarsus I with 30 pseudosegments, mostly irregular. Palp ( Fig. 11A–G View FIGURE 11 ). Trochanter apophysis ( Fig. 11B View FIGURE 11 ) tiny, about 0.2 times as long as femur, blunt, proximo-retrolaterally with tubercle; femur ventrally swollen; tibia with prolatero-ventral tubercle; procursus ( Fig. 11B–E View FIGURE 11 ) dark brown, slightly sinuated dorsally, with small ventral knee; dorso-subdistally slightly swollen, with two spines ( Fig.11C View FIGURE 11 ); procursus tip ( Fig.11C–E View FIGURE 11 ) with three large ridges and several indistinct ridges retrolaterally ( Fig.11E View FIGURE 11 ), dorsal process membranous, spatulate, distally denticulate (arrowed 1 in Fig. 11D View FIGURE 11 ), and prolateral process triangular and membranous, retrolaterally with transparent blunt projection (arrowed 2 in Fig. 11D View FIGURE 11 ), prolatero-distally with large, strongly sclerotized, dagger-like, ventrally curved projection and thick linear strongly sclerotized mark (arrowed 3 in Fig. 11C–D View FIGURE 11 ); genital bulb oval, pale yellow; uncus ( Fig. 11F View FIGURE 11 ) about 0.9 times as long as genital bulb, dark brown, half-heart shaped, distally slightly curved and pointed, outer margin with numerous tiny scales and small proximal concave area, inner margin slightly sinuated; pseudoappendix ( Fig. 11G View FIGURE 11 ) tiny, triangular, slightly sclerotized; embolus ( Fig. 11G View FIGURE 11 ) slender, distally fringed, weakly sclerotized, slightly longer than uncus.
Female (one of paratypes, KNU-Ar 20230085). Habitus as in Fig. 1R View FIGURE 1 . Somatic characteristics generally similar to male, but cheliceral apophyses absent, legs slightly shorter. Total length 5.1. Prosoma 1.4 long, 1.4 wide. Diameter of AME 113 µm, ALE 158 µm, PME 112 µm, PLE 132 µm. AME–AME 38 µm, PME–PME 217 µm, PME–ALE 42 µm. Opisthosoma 3.6 long, 1.4 wide. Leg Ⅰ 32.1 (8.1 + 0.7 + 7.9 + 13.1 + 2.3), leg II 21.6 (5.9 + 0.6 + 5.4 + 8.4 + 1.4), leg III 15.9 (4.5 + 0.6 + 3.8 + 5.9 + 1.1), leg IV 21.9 (6.3 + 0.6 + 5.4 + 8.3 + 1.3). Ratio of leg Ⅰ (11.4: 1.0: 11.1: 18.5: 3.3), leg II (9.9: 1.0: 8.9: 13.9: 2.3), leg III (7.6: 1.0: 6.4: 10.0: 1.9), leg IV (10.2: 1.0: 8.6: 13.3: 2.1). Leg formula 1423. Tibia I L/d 66. Epigyne ( Fig. 11H View FIGURE 11 ). Anterior plate obtuse triangular, with yellowish brown mark only medially, near epigynal knob dark brown; posterior plate ivory, slightly shorter than anterior plate, posterior edge slightly extended, with pair of oval brown sclerotized areas laterally, gradually darkened posterolaterally; epigynal knob dark brown, moderately thick, blunt, about 0.4 times as long as posterior plate; posterior sclerotized cuticle brown, moderately procurved, slightly shorter than posterior plate; interspace between posterior plate and posterior sclerotized cuticle yellowish brown, slightly shorter than posterior plate. Internal genitalia ( Fig. 11I View FIGURE 11 ). Anterior arch triangular, median portion strongly sclerotized; genital valve slightly curved roundly; lateral portion enlarged, lateral margin ventrally strongly concave, dorsally slightly concave, anterior portion strongly elongated and pointing anterolaterally, lanceolate, blunt; pore plate oval, close together anteriorly and wide apart posteriorly.
Variation. Males. Prosoma width: 1.4–1.8 (mean 1.6), tibia Ⅰ: 10.3–12.5 (mean 11.4) (n=10).
An intrapopulational variation was observed on the shape of membranous distal dorsal process and membranous blunt retrolateral projection of prolateral process of procursus tip. The shape of strongly sclerotized mark on outer submarginal portion of prolateral process in procursus tip was also varied ( Fig. 16M–N View FIGURE 16 ).
Females. Prosoma width: 1.4–1.6 (mean 1.5), tibia Ⅰ: 6.7–9.1 (mean 7.7) (n=10). An intrapopulational variation was observed on the size of pore plates and the shape of lateral portion of internal genitalia ( Fig. 16Q–R View FIGURE 16 ), but the epigynal shapes were largely consistent ( Fig. 16O–P View FIGURE 16 ).
Habitat information. This species was found inside road drains in mountainous regions.
Distribution. Korea (Danyang) ( Fig. 18 View FIGURE 18 ).
| NIBR |
National Institute of Biological Resources |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.