Malamatidia Deeleman-Reinhold, 2001

Zhang, Jianshuang, Yu, Hao & Li, Shuqiang, 2021, On the clubionid spiders (Araneae, Clubionidae) from Xishuangbanna, China, with descriptions of two new genera and seven new species, ZooKeys 1062, pp. 73-122 : 73

Genus Malamatidia Deeleman-Reinhold, 2001

Malamatidia Deeleman-Reinhold, 2001: 191.

Type species.

Malamatidia bohorokensis Deeleman-Reinhold, 2001 from Sumatra, Borneo.

Diagnosis.

Malamatidia resembles Matidia Thorell, 1878 and Nusatidia Deeleman-Reinhold, 2001 by the long, slender, pale yellow or greenish (in alcohol) body (Figs 2E-H , 4E-H , 6E-H , 8E-H , 10A-C ), but it can be distinguished from Matidia by the higher cephalic region/carapace width ratio (~ 2/3 vs. 1/2 in Matidia ) (cf. Figs 2E, G and 4E, G , 6E, G ) and femur I is shorter than femur II. It differs from Nusatidia by the sternum without a rectangular extension (cf. Figs 2H and 10B ). Malamatidia species also can be recognised by the copulatory organs: RTA with a sub-rectangular tip (Fig. 1B ), filiform embolus curving clockwise and following along the tegular distal margin (Fig. 1C, D ), sperm duct an S-shaped loop and sometimes abruptly narrowed (Fig. 1D, E ); epigynal plate has a central depression with a longitudinal rim or septum centrally (Fig. 2A, B ). All characters of Malamatidia , Nusatidia , and Matidia are according to Deeleman-Reinhold (2001) and Jäger and Dankittipakul (2010).

Description.

See Deeleman-Reinhold (2001).

Comments.

Based on morphological characters, the genus is probably closely related to Matidia and Nusatidia . However, the monophyly and the exact placement of Malamatidia within Clubionidae remains to be tested.

Figures

Figure 1. Male palp of Malamatidia zu A prolateral view B retrolateral view C bulb, prolateral view D bulb, ventral view E bulb, retrolateral view. Abbreviations: C = conductor; E = embolus; EB = embolic base; RTA = retrolateral tibial apophysis. Scale bars: 0.10 mm (equal for A, B, equal for C-E).

Figure 2. Malamatidia zu, epigyne (A-D), male habitus (E, F) and female habitus (G, H) A intact, ventral view B cleared, ventral view C cleared, dorsal view D cleared, dorsal view E dorsal view F lateral view G dorsal view H ventral view. Abbreviations: BS = bursa; CD = copulatory duct; CO = copulatory opening; FD = fertilization duct; SP = spermatheca. Scale bars: 0.10 mm (equal for A-D); 1 mm (equal for E, F, equal for G, H).

Figure 4. Matidia spatulata, epigyne (A-D), male habitus (E, F) and female habitus (G, H) A intact, ventral view B cleared, ventral view C cleared, dorsal view D cleared, dorsal view; path of copulatory duct marked E dorsal view F lateral view G dorsal view H ventral view. Arrow (F) point at dark ventral abdominal spot in male. Abbreviations: BS = bursa; CD = copulatory duct (dashed line showing schematic course of copulatory duct, dorsal); CO = copulatory opening; FD = fertilization duct; SP = spermatheca. Scale bars: 0.10 mm (equal for A-D); 2 mm (equal for E, F, equal for G, H).

Figure 6. Matidia xieqian sp. nov., female paratype and male holotype, epigyne (A-D), male habitus (E, F) and female habitus (G, H) A intact, ventral view B cleared, ventral view C cleared, dorsal view D cleared, dorsal view; path of copulatory duct marked E dorsal view F lateral view G dorsal view H ventral view. Abbreviations: A = epigynal atrium; BS = bursa; CD = copulatory duct (dashed line showing schematic course of copulatory duct, dorsal); CO = copulatory opening; FD = fertilization duct; SP = spermatheca. Scale bars: 0.20 mm (equal for A-D); 1 mm (equal for E, F, equal for G, H).

Figure 8. Nusatidia aeria, epigyne (A-D), male habitus (E, F) and female habitus (G, H) A intact, ventral view B cleared, ventral view C cleared, dorsal view D cleared, dorsal view E dorsal view F lateral view G dorsal view H ventral view. Abbreviations: CD = copulatory duct; CO = copulatory opening; EPP = epigynal posterior plate; SP = spermatheca. Scale bars: 0.10 mm (equal for A-D); 1 mm (equal for E, F, equal for G, H).

Figure 10. Male habitus of Nusatidia camouflata A dorsal view B ventral view C lateral view. Dotted box (B) showing rectangular projection in front of coxae I. Scale bars: 1 mm (equal for A-C).