Patu jidanweishi Miller, Griswold & Yin, 2009

Miller, Jeremy, Griswold, Charles & Yin, Chang, 2009, The symphytognathoid spiders of the Gaoligongshan, Yunnan, China (Araneae: Araneoidea): Systematics and diversity of micro-orbweavers, ZooKeys 11 (11), pp. 9-195 : 64-66

Patu jidanweishi Miller, Griswold & Yin , sp. n.

urn:lsid:zoobank.org:act:1C8AF042-4D42-48BA-A072-1058266329FD

Figs 65 A-E, 66 , 67 A-D, 68-71 , 100

Patu sp., Griswold and Yan, 2003: 356-360.

Material Examined. Holotype: CHINA: Yunnan: Lushui Co., Pianma Township, Chang Yan He , 9.3 km ESE Pianma, 25.99363°N, 98.66651°E, 2470 m, 13-15 May 2005, mixed broadleaf deciduous and evergreen forest, dusting small webs near ground in forest understory, C. Griswold, CGY104 (CASENT 9029293, HNU), 1 ♁.

Paratypes: [same data as holotype] (CASENT 9022356, CAS), 2 ♁, 4 ♀, 4 juvs ; [same data as holotype] (CASENT 9029294, PV 0713-0716 , CAS), 1 ♀ ; [same data as holotype] (CASENT 9029295, PV 0723-0728 , CAS), 1 ♀ ; Longling Co., Longjiang Township, Xiao Hei Shan Nature Reserve , 1.2 km SSE of Route S317 at km 23.5, 24.82888°N, 98.76001°E, 2020 m, 27-28 May 2005, good primary broadleaf forest, dusting webs in understory, C. Griswold, CGY128 (CASENT 9029296, PV, CAS), 1 ♀ ; Nujiang Prefecture, native forest in Gaoligongshan at 9.5 road km ESE Pianma , 25.98333°N, 98.66667°E, 2500 m, 15-18 October 1998, C. Griswold, D. Kavanaugh, C.L. Long (CASENT 9029303, CAS), 1 ♁, 1 ♀ ; [same data] (CASENT 9023961, CG 17 x98(2)7-15, CAS), 1 ♀ ; [same data] (CASENT 9023960, CG 17 x98(2)16- 22, CAS), 1 ♀ ; Lushui Co., Pianma Township, Chang Yan He , 9.3 km ESE Pianma, 25.99363°N, 98.66651°E, 2470 m, 12-21 May 2005, mixed broadleaf deciduous and evergreen forest, pitfall traps, C. Griswold, D. Kavanaugh, K. Guo, CGY103 (CASENT 9023102, CAS), 1♀, 4juvs ; Lushui Co., Pianma Township, Chang Yan He , 9.3 km ESE Pianma, 25.99363°N, 98.66651°E, 2470 m, 12 May 2005, mixed broadleaf deciduous and evergreen forest, winkler extraction of sifted leaf litter, C. Griswold, D. Kavanaugh, K. Guo, CGY102 (CASENT 9022328, HNU), 1♀ ; Fugong Co., S Fork, Yamu He , 1.51 km 150° SW of confluence [with N Fork], Gaoligongshan , 27.11905°N, 98.83108°E, 1723 m, 26 April 2004, moist shaded embankments, C. Griswold, CGY13 (CASENT 9020753, HNU), 1♀ ; Gaoligongshan , 0.4 km SSE Shibali forest station, 27.16337°N, 98.78208°E, 2475 m, 5 May 2004, dusting webs in understory of good forest, C. Griswold, CGY29 (CASENT 9019862, CAS), 1 ♁, 1 ♀ ; [same data] (CASENT 9019863, HNU), 1 ♁, 1 ♀ ; [same data] (CASENT 9019864, HNU), 1 ♀, 4 juvs ; Gaoligongshan, 0.5 km radius of Shibali forest station, 27.16519°N, 98.77891°E, 2525 m, 1-9, May, 2004, dusting webs in forest, C. Griswold, CGY25 (CASENT 9019875, CAS), 1 ♁, 1 ♀ ; [same data] (CASENT 9019877, HNU), 1 ♀, 11 juvs ; [same data] (CASENT 9020650, HNU), 1 ♁, 1 ♀ ; [same data] (CASENT 9019874, CAS), 1 ♁, 1 ♀ ; [same data] (CASENT 9019876, HNU), 1 ♁, 1 ♀ ; [same data] (CASENT 9019873, CAS), 1 ♁, 1 ♀ ; [same data] (CASENT 9024143, HNU), 1 ♁, 2 ♀, 1 juv ; Gaoligongshan, Shibali forest station, 27.16636°N, 98.77667°E, 2563 m, 3-11 May 2004, good forest, pitfall traps, C. Griswold, D. Kavanaugh, CGY21 (CASENT 9020351, HNU), 2 ♁, 1 ♀ ; [same data] (CASENT 9020350, CAS), 1 ♁, 1 ♀ ; Gaoligong Shan, Nujiang Prefecture: Nujiang State Nature Reserve , QiQi He , 9.9 airkm W of Gongshan, 27.715°N, 98.565°E, 2000 m, 9-14, July, 2000, H.-M. Yan, D. Kavanaugh, C.E. Griswold, H.-B. Liang, D. Ubick, & D.-Z. Dong (CASENT 9000375, HNU), 4 ♁, 4 ♀ ; [same data] (CASENT 9000374, CAS), 2 ♁, 10 ♀, 1 juv ; [same data] (CASENT 9000373, HNU), 14 ♀ ; [same data] (CASENT 9000339, CAS), 1 ♀ ; [same data] (CASENT 9000370, “DL photo 7/12: symphyt beneath 1f w/ mys”, CAS), 1 ♀ ; [same data] (CASENT 9000338, CAS), 1 ♀ ; [same data] (CASENT 9000343, CAS), 1 ♀ ; [same data] (CASENT 9000371, HNU) 2 ♁, 10 ♀, 1 juv ; [same data] (CASENT 9000372, CAS), 14 ♀ ; [same data] (CASENT 9000342, “DL photo 1/12: indiv, symphyt w/eggs”, CAS), 1 ♀ ; [same data] (CASENT 9000369, HNU), 1 ♀ ; [same data] (CASENT 9000340, CAS), 1 ♀ ; [same data] (CASENT 9000341, CAS), 1 ♀ ; [same data] (CASENT 9023115, HNU), 1 ♀ .

Etymology. Formed from the Chinese words for egg (jī dàn) and guardian (wèi shì), referring to the egg-guarding behavior described by Griswold and Yan (2003).

Diagnosis. Distinguished from other Patu species except P. woodwardi Forster, 1959 , P. marplesi Forster, 1959 , P. qiqi and P. xiaoxiao by the presence of only a single cheliceral tooth ( Figs 69 E-F, 70D, Forster 1959: fig. 122; two or more in other Patu species); male distinguished from P. woodwardi and P. marplesi by the presence of two ventral subdistal spines on tibia II ( Fig. 65E ); distinguished from P. qiqi by the much longer embolus in P. jidanweishi ( Fig. 66 ; short, not flexible in P. qiqi , Fig. 73B ; male unknown in P. xiaoxiao ); female distinguished from P. qiqi and P. xiaoxiao by the presence of a scape ( Figs 67 A-C, 70A-B).

Description. Carapace brown, male clypeus strongly raised with clusters of sulci ( Fig 69 A-D). Six eyes in three doublets ( Fig. 69B ). Sternum dark brown. Chelicerae fused near the base, with single prolateral tooth, fang furrow absent ( Fig. 69 E-F). Labrum not swollen, bearing single plumose seta, with ventrally rounded labral tongue ( Fig. 70 E-F). Female palp absent. Legs brown. Abdomen brown ( Fig. 65 A-D).

Male palp: Cymbium covers proximodorsal part of bulb ( Fig. 66 ). Tegular region divided into numerous lobes ( Fig. 68B ). Embolus long, free, follows complex path ( Fig. 66 ).

Vulva: Epigynum a lightly sclerotized scape ( Fig. 67 A-B) with a socket near the tip ( Fig. 67C ). Ducts make many turns around spermathecae ( Fig. 67C ).

Male (CASENT 9022356): Total length 0.69, carapace 0.29 long, 0.30 wide, clypeus 0.12, sternum 0.20 long, 0.20 wide, coxa IV separated by 2.10 times their width. Leg I: patella d1, tibia d2; Leg II: patella d1, tibia d2, v2 on tubercle, metatarsus with ventral tubercle near center; Leg III: patella d1, tibia d1; Leg IV: patella d1, tibia d1. Metatarsal trichobothria: TmI: 0.43; TmII: 0.42; TmIII: 0.50. Leg measurements: see Appendix A. Epiandrous gland spigots absent ( Fig. 68F ). Posterior lateral spinnerets with sticky silk triplet, aggregate gland spigots on common base (Fig. 71F).

Female (CASENT 9022356): Total length 0.88, carapace 0.34 long, 0.31 wide, clypeus 0.05, sternum 0.22 long, 0.21 wide, coxa IV separated by 1.83 times their width. Leg I: patella d1, tibia d2; Leg II: patella d1, tibia d2; Leg III: patella d1, tibia d1; Leg IV: patella d1, tibia d1. Metatarsal trichobothria: TmI: 0.43; TmII: 0.44; TmI- II: 0.48. Leg measurements: see Appendix A. Spinnerets (Fig. 71A-D), posterior lateral spinnerets with aggregate gland spigots on common base (Fig. 71D).

Natural History. This species builds a horizontal orb web ( Fig. 72 A-B; see also page 12). Eggs ( Fig. 67D ) are placed on the periphery of the web, each individually wrapped (see Griswold and Yan 2003).

Figures

Figure 65. A-E, Patu jidanweishi sp. n. from Chang Yan He; F-H, Patu qiqi from QiQi He. A, male, lateral; B, F, female, lateral; C, G, female, dorsal; D, H, female, ventral; E, male leg II, prolateral.

Figure 66. Patu jidanweishi sp. n. from Chang Yan He, male palp. A, prolateral; B, retrolateral. CB: cymbium; E: embolus; T: tegulum.

Figure 67. A-D, Patu jidanweishi sp. n. from Chang Yan He; E, F, Patu qiqi from QiQi He; G, H; Patu xiaoxiao sp. n. from Chang Yan He; I, Crassignatha pianma sp. n. from Chang Yan He. A, E, G, I, epigynum, ventral view; B, epigynum, lateral view; C, F, H, cleared vulva, dorsal view; D, eggs.

Figure 68. Patu jidanweishi sp. n. from Chang Yan He, SEM of male. A, palp, prolateral; B, palp, retrolateral; C, palp, apical; D, palp, dorsal; E, metatarsus-tarsus joint, arrow indicates tarsal organ; F, epiandrous region. CB: cymbium; E: embolus; T: tegulum; TI, tibia.

Figure 69. Patu jidanweishi sp. n. from Chang Yan He, SEM. A-E, male; F, female. A, prosoma, lateral; B, prosoma, anterior, dorsal to left; C, prosoma, lateral, detail showing sulci and lateral eyes; D, detail of sulci, arrows indicate pores; E, fang and distal part of chelicera showing single tooth; F, chelicera removed from prosoma.

Figure 70. Patu jidanweishi sp. n. from Chang Yan He, SEM of female. A, epigynum, posterior; B, epigynum, lateral, dorsal to the right; C, prosoma, lateral; D, prosoma, anterior, dorsal to the right; E, labrum, anterior; F, labrum, lateral, dorsal to the right. Arrows in E and F indicate maximum extension of labrum.

Figure 72. Webs of symphytognathid spiders. A, Patu jidanweishi sp. n., female from Xiao Hei Shan Nature Reserve; B, Patu jidanweishi sp. n., male from Pianma; C, D, Crassignatha pianma sp. n., female from Chang Yan He; E, Crassignatha yinzhi sp. n., female from Xiao Hei Shan Nature Reserve.

Figure 73. Patu qiqi sp. n. from QiQi He, slightly expanded male palp. A, prolateral; B, retrolateral. BH: basal hematodocha; CB: cymbium; E: embolus; T: tegulum.

Figure 100. Distribution map, inset map shows study area. Purple: Mosu nujiang sp. n.; blue: Crassignatha ertou sp. n.; red: Chanea suukyii sp. n.; yellow: Patu jidanweishi sp. n