Myrmage lii Wang, Mi & Peng sp. nov.

urn:lsid:zoobank.org:act: 6C03E9DA-C601-43C1-832E-3EF0D99B5A1E

Figs 5–6, 60

Diagnosis

The male of Myrmage lii sp. nov. resembles that of M. imbellis (Peckham & Peckham, 1892) in having a very similar palp, but it can be easily distinguished by the following: (1) the chelicera is less than half the carapacae length (Fig. 6D–E), whereas almost as long as carapace in M. imbellis (Benjamin 2015: fig. 8a, c); (2) the RTA has a sub-triangular ventral ramus (Fig. 5B–D), whereas without indistinct ventral ramus in M. imbellis (Benjamin 2015: fig. 10a–c). It also resembles that of M. brevis Xiao, 2002 in having short chelicerae and a similar palp, but it can be distinguished by the following: (1) the sternum is about two times as long as wide (Fig. 6E), whereas about three times as long as wide in M. brevis (Xiao 2002: fig. 6); (2) the dorsal ramus of RTA is anteriorly directed in retrolateral view (Fig. 5C–D), whereas anteroprolaterally directed in M. brevis (Xiao 2002: fig. 3). The female is similar to that of M. dishani in having elongated spermathecae, but it can be easily distinguished by the presence of an epigynal hood, the round atria and by the sclerotized portions of copulatory ducts originating from the anterior edges of the atria and separated from the epigastric groove (Fig. 6A–C), whereas lacking a distinct epigynal hood, with oval atria, and the sclerotized portions of copulatory ducts originating from the posterior margins of the epigyne, and close to the epigastric groove in M. dishani (Benjamin 2015: fig. 6c–d).

Etymology

The specific name is a patronym in honor of Dr Shuqiang Li, a well-known arachnologist; noun (name) in genitive case.

Type material

Holotype

CHINA • ♂; Yunnan, Nanjian County, Lingbao Mountain National Forest Park; 24°46.02′ N, 100°31.19′ E; 2285 m a.s.l.; 12 Aug. 2015; C. Wang et al. leg.; TRU-JS 0071.

Paratypes

CHINA • 12 ♀♀; same collection data as for holotype; TRU-JS 0072–0083.

Description

Male (holotype)

MEASUREMENTS. Total length 3.73. Carapace 1.64 long, 1.03 wide. Abdomen 2.01 long, 0.88 wide. Eye sizes and inter-distances: AME 0.34, ALE 0.18, PLE 0.17, AERW 0.98, PERW 1.05, EFL 0.77. Legs: I 3.66 (1.10, 0.50, 1.10, 0.59, 0.37), II 2.80 (0.80, 0.45, 0.70, 0.51, 0.34), III 3.09 (0.88, 0.43, 0.73, 0.68, 0.37), IV 4.39 (1.32, 0.50, 1.15, 1.01, 0.41).

HABITUS. Carapace red-brown to dark brown, covered with sparse white setae, with elevated, sub-square cephalic region (Fig. 6D). Chelicerae stubby, with five teeth on both margins (Fig. 6G). Sternum about two times as long as wide (Fig. 6E). Legs yellow to red-brown, with ventral macroseta on patellae I, and four and two pairs of ventral macrosetae on tibiae and metatarsi I, respectively. Abdomen elongated, dorsum brown to red-brown, covered by big scutum, with a pair of mediolateral white stripes formed by setae and followed by indistinct, transverse, yellow streak; venter dark brown (Fig. 6D–E).

PALP. Tibia longer than wide in retrolateral view, with short, tapered PTA rather pointed apically; RTA broadened anteromedially and bifurcated into sub-triangular ventral ramus and tapered dorsal ramus curved towards bulb distally in ventral view; bulb almost round; embolus broad, flat, coiled about two circles, with pointed distal end (Fig. 5).

Female (paratype, TRU-JS 0072)

MEASUREMENTS. Total length 5.14. Carapace 1.91 long, 1.05 wide. Abdomen 2.68 long, 1.36 wide. Eye sizes and inter-distances: AME 0.34, ALE 0.18, PLE 0.17, AERW 1.04, PERW 1.14, EFL 0.76. Legs: I 3.60 (1.10, 0.55, 0.95, 0.54, 0.46), II 2.81 (0.80, 0.43, 0.75, 0.49, 0.34), III 3.20 (0.90, 0.43, 0.80, 0.73, 0.34), IV 4.65 (1.34, 0.55, 1.25, 1.07, 0.44).

HABITUS. Similar to that of male except paler in color and without dorsal abdominal scutum (Fig. 6F).

EPIGYNE. Slightly longer than wide, with sub-triangular hood located at middle of posterior portion; atria paired, round, posterolaterally located; copulatory openings indistinct; sclerotized portions of copulatory ducts strongly curved; spermathecae elongated, touching, slightly broadened distally; fertilization ducts lamellar, extended transversely (Fig. 6A–C).

Distribution

China (Yunnan) (Fig. 60).