Mysmenidae (Arachnida, Araneae), a spider family newly recorded from Vietnam Author Lin, Yucheng Author Li, Shuqiang text Zootaxa 2014 3826 1 169 194 journal article 45359 10.11646/zootaxa.3826.1.5 9a5d5fd0-67d3-4006-88b6-67a66e3c9cd1 1175-5326 252392 BE31D904-A8B4-45C2-A23A-2010CC387099 Calodipoena tamdaoensis new species Figs 1–7 , 20 Type material: Holotype : male ( IZCAS ), VIETNAM : Vinh Phuc, Tam Dao National Park ( 21°31.567′N , 105°33.151′E ; Alt.: 1011 m ), natural forest, by sieving leaf litter, 16 May 2007 , D.S. Pham leg. Paratypes : 3 females , same data as holotype ( IZCAS ); 4 females ( IZCAS ), Tam Dao National Park ( 21°29.230′N , 105°37.203′E ; Alt.: 870 m ), by sieving leaf litter, 19 October 2007 ; 2 females ( IZCAS ), Tam Dao National Park ( 21°31.501′N , 105°33.434′E ; Alt.: 1060 m ), by sieving leaf litter, 16 May 2007 ; 2 females ( IZCAS ), Tam Dao National Park ( 21°29.428′N , 105°37.008′E ; Alt.: 1077 m ), by sieving leaf litter, 21 August 2007 , D.S. Pham leg. Etymology. The specific epithet is derived from the type locality; adjective. Diagnosis. Calodipoena tamdaoensis has the typical generic features of a broad cymbium ( Figs 3 C, 6C), a long, coiled embolus ( Figs 2 C, 5C), and vulva with long copulatory ducts but without bursae ( Figs 4 C, 7C). This new species is similar to Calodipoena mooatae Baert, 1988 from Sulawesi, Indonesia ( Baert 1988: 18, figs 22–24 ) in having a strip-shaped, distal furcate embolus ( Figs 3 B, 6B), a flatten bulb ( Figs 2 A–B, 3A, 5A–B, 6A), and twisted spermathecae separated by at least their width ( Figs 4 C, 7C), but can be distinguished from C. mooatae and other congeners by the presence of a weakly sclerotized cymbial spot ( Figs 3 C, 6C), a strongly sclerotized distal cymbial process ( Figs 3 C, 5C, 6C) and a wide, robust embolus ( Figs 2 C, 3B, 5C, 6B) in the male; and the fistshaped spermathecae ( Figs 4 B, C), a broad epigynal plate ( Figs 4 A–C), and the absence of a scape ( Figs 7 A–C) in the female. FIGURE 1. Calodipoena tamdaoensis n. sp. , male holotype (A–C) and female paratype (D–F). A–F, habitus. A, D, dorsal; B, E, ventral; C, F, lateral. Scale bars: 0.20. FIGURE 2. Calodipoena tamdaoensis n. sp. , male holotype. A–C, left pedipalp. A, prolateral; B, retrolateral; C, apical. Scale bars: 0.10, A and B; 0.05, C. FIGURE 3. Calodipoena tamdaoensis n. sp. , male holotype. A, left pedipalp, ventral; B, pedipalpal bulb, ventral-lateral; C, cymbium, retrolateral (short arrow shown cymbial spot); D, pedipalpal tibia, retrolateral. Scale bars: 0.10, A; 0.05, B–D. FIGURE 4. Calodipoena tamdaoensis n. sp. , female paratype. A, epigynum; B–C, cleared vulva (lactic acid-treated). A–B, ventral; C, dorsal. Scale bars: 0.05, A; 0.10, B and C. Description. Male ( holotype ). Somatic characters see Fig. 1 A–C. Coloration: Prosoma dark medially, yellow laterally. Sternum yellow medially, grey laterally. Opisthosoma grey dorsally and ventrally, pale and with white stripes laterally. Measurements: Total length 0.66. Prosoma 0.29 long, 0.32 wide, 0.39 high. Opisthosoma 0.41 long, 0.45 wide, 0.50 high. Clypeus 0.16 high. Sternum 0.20 long, 0.20 wide. Length of legs [total length (femur + patella + tibia + metatarsus + tarsus)]: I 1.06 (0.34, 0.13, 0.21, 0.18, 0.20); II 0.92 (0.29, 0.13, 0.18, 0.14, 0.18); III 0.64 (0.18, 0.09, 0.12, 0.11, 0.14); IV 0.77 (0.23, 0.10, 0.16, 0.13, 0.15). Prosoma: Carapace round. Cephalic region elevated, with vertical clypeus. Eight eyes in two rows. AME black, others white. AER procurved, PER straight. ALE and PLE contiguous. Chelicerae small, shorter than endites, with 4 promarginal and 4 retromarginal teeth. Endites with tiny serrula. Sternum heart-shaped, plump. Legs: Each segment yellow proximally, grey distally. Leg formula: I-II-IV-III. Leg I with a submesal metatarsal clasping macroseta prolaterally. Patellae I–IV with a stiff dorsal seta distally. Tibiae I–IV with a stiff dorsal seta proximally and 3 trichobothria. Metatarsi I–IV with a single trichobothrium. Opisthosoma: Globular dorsally. Spinnerets dark, anteriors larger than posteriors. Colulus small, finger-shaped, black. Pedipalp ( Figs 2 , 3 , 5 and 6 ): Large, brown, strongly sclerotized. Femur without modification. Patella short. Tibia swollen, oblique cup-shaped ( Figs 3 A, 6A), covered with long setae ( Figs 3 D, 6D). Cymbium membranous, translucent, with two cymbial process, one strongly sclerotized and serrated at inferior margin, another triangular and attached with a cluster of long setae, a weak sclerotized circular spot located near the middle of the cymbium ( Figs 3 C, 6C). Bulb flat distally. Tegulum wide, membranous, rugose. Spermatic duct visible through wrinkled tegulum ( Figs 2 C, 3B, 5C and 6B). Embolus long, wide, band-shaped, strongly sclerotized, coiling into a loop around tegulum ( Figs 2 A–C, 5A–C). Embolic end bifurcated, with one short, narrow branch and another long, broad branch ( Figs 2 C, 3B, 5C and 6B). FIGURE 5. Calodipoena tamdaoensis n. sp. , male holotype. A–C, left pedipalp. A, prolateral; B, retrolateral; C, apical. Scale bars: 0.10, A and B; 0.05, C. FIGURE 6. Calodipoena tamdaoensis n. sp. , male holotype. A, left pedipalp, ventral; B, pedipalpal bulb, ventral-lateral; C, cymbium, retrolateral (short arrow shown cymbial spot); D, pedipalpal tibia, retrolateral. Scale bars: 0.10, A; 0.05, B–D. FIGURE 7. Calodipoena tamdaoensis n. sp. , female paratype. A, epigynum; B–C, cleared vulva (lactic acid-treated). A–B, ventral; C, dorsal. Scale bars: 0.05, A; 0.10, B and C. Female ( paratype ). Somatic characters as in Fig. 1 D–F. Coloration: Prosoma grey. Sternum yellow medially, grey laterally. Opisthosoma grey dorsally and ventrally, with round spots laterally. Measurements: Total length 0.86. Prosoma 0.35 long, 0.32 wide, 0.32 high. Opisthosoma 0.61 long, 0.66 wide, 0.71 high. Clypeus 0.05 high. Sternum 0.23 long, 0.20 wide. Length of legs [total length (femur + patella + tibia + metatarsus + tarsus)]: I 1.09 (0.35, 0.14, 0.21, 0.19, 0.20); II 0.94 (0.29, 0.13, 0.18, 0.16, 0.18); III 0.70 (0.20, 0.10, 0.13, 0.13, 0.14); IV 0.87 (0.28, 0.11, 0.17, 0.15, 0.16). Prosoma: Carapace pear-shaped. Cephalic region flat. Eight eyes in two rows. Ocular pattern, the number of cheliceral teeth, the endites and the shape of sternum as in male. Legs: Color, number of trichobothria and setae same as in male. Leg formula: I-II-IV-III. Sclerotized femoral spots absent. Opisthosoma: Globular dorsally. Spinnerets grey, anteriors larger than posteriors. Colulus small, finger-shaped, grey. Epigynum ( Figs 4 , 7 ): Covered with short setae, with a wide, sclerotized epigynal plate at epigastric groove margin ( Figs 4 A, 7A). Internal structures are more or less visible via the translucent epigynal cuticle. Spermathecae curly, sclerotized, shape like a clenched fist, separated by about 1.2 times their diameter ( Figs 4 B, 7B). Fertilization ducts and copulatory ducts intertwined distally to form spermathecae. Copulatory ducts long, straight, arising from anterior spermathecae, extending laterally and posteriorly to form a broad epigynal plate, copulatory opening situated medially on epigynal plate posteriorly ( Figs 4 C, 7C). Distribution. Known only from the type locality ( Fig. 20 ).