Draconarius nathiagalicus, Zamani, 2021

Zamani, Alireza, 2021, A new species of Draconarius Ovtchinnikov, 1999 (Araneae, Agelenidae) from northeastern Pakistan, Evolutionary Systematics 5 (2), pp. 359-362 : 359

Draconarius nathiagalicus sp. nov.

Figs 1A-D , 2A-E , 3

Type material.

Holotype ♂ and 1♂ paratype ( MHNG), Pakistan: Khyber Pakhtunkhwa: Abbottabad District, Nathia Gali, 2600 m, 25-27.8.2001 (W. Heinz).

Etymology.

The specific epithet refers to the type locality of the species.

Diagnosis.

The new species is most similar to the type of the genus, D. venustus (from Tajikistan) in having an extremely long embolus (Em) and similar structure of the conductor. The two species can be diagnosed by the following differences: 1) the shape of the prolateral extension (Pes) of dorsal portion of the conductor (more prominent and with a distinct anterior outgrowth in the new species (Fig. 2E ), vs. less bulging and with an almost blunt anterior margin in D. venustus ; ( Ovtchinnikov 1999: fig. 24), 2) the shape of the median extension (Meh) of ventral portion of the conductor thinner and longer in the new species, vs. shorter and with wider base in D. venustus , 3) the shape of the tegular (=median) apophysis (Ta) (with a wider base and shorter anterior arm and more prominent, triangular posterior arm in the new species, vs. with a narrow base and longer anterior arm, and posterior arm with an almost blunt edge in D. venustus ), and 4) the shape of the patellar apophysis (Pa) (longer and more prominent in the new species). Females unknown.

Description.

Male (holotype). Habitus as in Fig. 1A-C . Total length 8.15. Carapace 3.65 long, 1.70 (pars cephalica) and 2.50 (pars thoracica) wide. Eye sizes: ALE: 0.20, AME: 0.12, PLE: 0.20, PME: 0.15. Carapace, sternum, maxillae and labium yellowish brown. Carapace with several dark lines radiating from fovea toward margins. Sternum with six dark spots. Chelicera reddish, with 3 retromarginal (middle one largest) and 2 promarginal teeth of subequal lenght, posteriorly with a distinct retrolateral bulge (Fig. 1C ). Legs colored as carapace, with fade darker spots on femora. Abdomen greyish and covered with short setae, dorsally with fade chevron patterns and ventrally with scattered and irregular darker markings. Spinnerets light yellowish brown (Fig. 1D ). Measurements of leg segments: I: 10.78 (2.87, 1.26, 2.45, 2.55, 1.65), II: 9.50 (2.61, 1.22, 1.89, 2.32, 1.46), III: 8.93 (2.32, 1.02, 1.78, 2.40, 1.41), IV: 11.86 (3.16, 1.21, 2.48, 3.30, 1.71). Spination: I: Fe 2d, 1pl, Ti 5v, Mt 6v; II: Fe 2d, 1pl, Ti 4v, Mt 6v; III: Fe 5d, Pa 1d, 1pl, 1rl, Ti 1d, 2pl, 5v, 2rl, Mt 4d, 2pl, 2rl, 6v, Ta 2pl, 1rl; IV: Fe 4d, Pa 1d, 1pl, 1rl, Ti 1d, 2pl, 6v, 2rl, Mt 4d, 3pl, 2rl, 6v, Ta 2pl, 1rl.

Palp as in Fig. 2A-D ; femur relatively short (Fig. 2A, C ); patella as long as wide, with relatively large, horn-shaped retrolateral apophysis (Pa; Fig. 2E ); tibia with keel-shaped retrolateral apophysis; cymbium large, with a distinct retrolateral furrow (Cf; Fig. 2A ); tegular (=median) apophysis (Ta) large, with a wide base and two triangular extensions, the anterior one with a curved apex; conductor very large and consisted of a hyaline ventral portion having a median (Meh) and a prolateral (Peh) extension, and a more sclerotized dorsal portion with a triangular retrolateral (Res) and a rounded prolateral (Pes) extension; embolus base (Eb) located at an almost 6 o’clock position, leading to a very long and thin embolus (Em) making several coils in different planes (Fig. 2D ).

Female. Unknown.

Comments.

Draconarius naranensis , described from Naran region in northeastern Pakistan, is known only by female ( Ovtchinnikov and Inayatullah 2005). It is possible that the males described here are conspecific with this species, considering that there are only about 100 km of aerial distance between the collection localities. However, as noted by Wang et al. (2010) who recorded 60 species of Draconarius in Yunnan Province of China, species of this genus could reach a very high local diversity, and therefore, it is also possible that the two populations represent separate species, especially considering the mountainous landscape of the type locality and the fact that the other two currently known species from this region were also collected from relatively close localities (Fig. 3 ). The distinct status of these two species can only be confirmed when both sexes of either species are collected together.

Distribution.

Known only from the type locality in Nathia Gali, northeastern Pakistan (Fig. 3 ).

Figures

Figure 1. Draconarius nathiagalicus sp. nov., holotype male. A, B. habitus, dorsal and ventral views; C. Prosoma, dorsal view; D. Spinnerets, ventral view. Scale bars: 1.0 mm, unless otherwise indicated.

Figure 2. Draconarius nathiagalicus sp. nov., palp of holotype male. A, C. Retrolateral and prolateral views; B, D. Ventral view; E. Ventro-prolateral view. Scale bars: 0.5 mm. Abbreviations: Cf - cymbial furrow, Eb - embolus' base, Em - embolus, Meh, Peh - median and prolateral extensions of hyaline portion of conductor, Pa - patellar apophysis, Pes, Res - prolateral and retrolateral extensions of sclerotized portion of conductor, Ta - tegular (= median) apophysis.

Figure 3. Distribution map of Draconarius species known from Pakistan. Star: D. nathiagalicus sp. nov.; circles: D. latellai; square: D. pakistanicus; triangle: D. naranensis.