Myahnia Lin & Li, 2023

Chu, Chang, Lin, Yejie & Li, Shuqiang, 2023, New genera and new species of Hahniidae (Araneae) from China, Laos, Myanmar, and Vietnam, ZooKeys 1187, pp. 91-134 : 91

publication ID	https://dx.doi.org/10.3897/zookeys.1187.112936
publication LSID	lsid:zoobank.org:pub:A09B6A51-1026-4375-A4EA-0EFC676479F1
persistent identifier	https://treatment.plazi.org/id/317A5532-7E8A-4393-9234-A1D857D1BD48
taxon LSID	lsid:zoobank.org:act:317A5532-7E8A-4393-9234-A1D857D1BD48
treatment provided by	ZooKeys by Pensoft
scientific name	Myahnia Lin & Li
status	gen. nov.

Treatment

Genus Myahnia Lin & Li gen. nov.

Type species.

Myahnia kanpetlet sp. nov. from Chin, Myanmar.

Diagnosis.

Myahnia gen. nov. can be distinguished from Hexamatia Rivera-Quiroz, Petcharad & Miller, 2020 by the larger body size> 1.49 mm (Fig. 9A, B View Figure 9 ) [vs 1 mm (see Rivera-Quiroz et al. 2020: fig. 2a-c)], chelicerae with stridulatory files (Fig. 1B View Figure 1 ) (vs without), relatively longer cymbial furrow bend almost 0.5 × length of cymbium (Fig. 7B View Figure 7 ) [vs almost 0.25 × (see Rivera-Quiroz et al. 2020: fig. 3b)], conductor absent (Figs 3B View Figure 3 , 7A View Figure 7 ) [vs present (see Rivera-Quiroz et al. 2020: fig. 3a, b, d, e)], sperm duct with U-shaped curve (Fig. 3B View Figure 3 ) [vs circular (see Rivera-Quiroz et al. 2020: fig. 3a, c)] and base of copulatory ducts membranous (Fig. 8B View Figure 8 ) [vs sclerotized (see Zhang et al. 2011: fig. 23E)].

Description.

Male. Small size. Carapace yellow, covered with few black setae. Six eyes in two rows; AME absent, PER longer than AER, PER procurved. ALE separated by almost their diameter; PME separated by longer than their diameter; ALE and PLE almost touching. Clypeus yellow, covered with several setae. Chelicerae yellow, with two promarginal and three retromarginal teeth, stridulatory files striped. Endites, labium yellow, covered with few black setae. Sternum coloured as endites, covered with brown setae. Legs yellow. Opisthosoma oval, grey without pattern. Spinnerets grey, straight in posterior view. Tracheal spiracle long and transverse, distance of spiracle to epigastric furrow as long as to spinnerets.

Palpal femur almost 3 × longer than patella, spineless. Patella longer than tibia, with retroventral apophysis. Tibia with long, curved serrated retrolateral apophysis. Cymbium 1.7 × longer than wide, cymbial furrow almost 0.5 × longer than cymbium. Bulb oval, without conductor, with sclerotized apophysis retrolaterally. Embolus whip-shaped, starting at ca 3:00-5:00 o’clock position, curving clockwise along tegular margin.

Female. Total length 1.49-1.76 (n = 4). Somatic characters as in male but body pale yellow and stridulatory files absent.

Epigynal plate 2 × wider than long. Copulatory openings located posteriorly, unobvious. Copulatory ducts curved, basal part wide and laminar. Vulva with two pairs of spermathecae. Fertilization ducts small, sickle-shaped.

Etymology.

The new generic name is a combination of Myanmar and Hahnia. The gender is feminine.

Composition.

Currently monotypic: Myahnia kanpetlet sp. nov.

Distribution.

Myanmar (Fig. 30 View Figure 30 ).