Lucasioides dianensis Li & Wang, 2024

Wang, Jin, Yao, Chong-Hui, Jiang, Chao & Li, Wei-Chun, 2024, Integrative taxonomy reveals exceptional species diversity of Lucasioides from China (Isopoda: Oniscidea: Agnaridae), Arthropod Systematics & amp; Phylogeny 82, pp. 527-549 : 527-549

publication ID

https://doi.org/ 10.3897/asp.82.e113041

publication LSID

lsid:zoobank.org:pub:B2966C0A-75B7-4B73-A45C-0A2EFB159715

DOI

https://doi.org/10.5281/zenodo.12627264

persistent identifier

https://treatment.plazi.org/id/E1E83038-A6A6-4A8F-B9DA-7B7A486A8C67

taxon LSID

lsid:zoobank.org:act:E1E83038-A6A6-4A8F-B9DA-7B7A486A8C67

treatment provided by

Arthropod Systematics & Phylogeny by Pensoft

scientific name

Lucasioides dianensis Li & Wang
status

sp. nov.

3.3. 2. Lucasioides dianensis Li & Wang sp. nov.

Figures 6 C View Figure 6 , 8 View Figure 8

Type material.

Holotype. CHINA • 1 ♂; Yunnan Province, Yuxi City, Tonghai County, Xiushan Historical and Cultural Park ; 24.0978 ° N, 102.7446 ° E, el. 1989 m a. s. l; 2. viii. 2022; J. Wang, X. K. Hong leg. (DNA nos. XS 2201 , Prep. slide no. L 22077 ) GoogleMaps . — Paratypes. • 2 ♂♂, 3 ♀♀; same data as the holotype (DNA nos. XS 2202 - XS 2206 ) GoogleMaps . CHINA • 2 ♂♂; Yunnan Province, Kunming City, Xishan Park, Taihuasi ; 26.9615 ° N, 102.6303 ° E; el. 2149 m a. s. l.; 2. viii. 2021; J. Wang, X. G. Zeng, Z. L. Wan leg. (DNA nos. THS 2101 , THS 2105 , Prep. slide no. L 21053 ) GoogleMaps .

Diagnosis.

Pleopod 1 exopod with bilobed apex, and outer lobe twice as long as inner lobe, each lobe with one single spine.

Description.

Body length of males 6.0- 9.8 mm, of females 7.0- 9.5 mm. Color in alcohol blackish brown, dorsum granulated, bearing irregular white muscle spots (Fig. 6 C View Figure 6 ). Pereonite 1 sinuous on posterior margin of epimeron, postero-lateral corner acute. Noduli laterales as in Fig. 8 A View Figure 8 . Telson triangular, posterior half conspicuously narrowed towards blunted apex, lateral margin concave; uropod exopodite about twice as long as basipodite (Figs 6 C View Figure 6 , 8 A View Figure 8 ). — Cephalon with triangular median lobe, median lobe loner than lateral lobes (Figs 6 C View Figure 6 , 8 A View Figure 8 ). Antennula with several aesthetascs on distal tip of third article (most aesthetascs lost before dissection) (Fig. 8 B View Figure 8 ). Antennal flagellum with second segment nearly twice as long as first one (Fig. 8 C View Figure 8 ). — Pereopod 1 with brush of long setae on carpus and merus (Fig. 8 D View Figure 8 ). Pereopod 7 ischium with deep depression on rostral surface, carpus expanded on dorsal margin (Fig. 8 E View Figure 8 ). — Pleopods 1-5 exopods with Protracheoniscus - type pseudotrachea (Fig. 8 F-J View Figure 8 ). — MALE: pleopod 1 exopod bilobed at posterior tip, outer lobe twice as long as inner lobe, and each lobe with spine, endopod with broad basal part, narrowed towards apex, posterior tip beak-shaped and bent outwards (Fig. 8 F View Figure 8 ); pleopod 2 exopod with a line of setae on posterior part of outer margin, endopod styliform, nearly as long as exopod (Fig. 8 G View Figure 8 ).

Etymology.

The new species is named after its type locality Yunnan Province, and “ dian ” is the shortened form of this province of China.

Remarks.

The new species is very similar to L. isseli ( Arcangeli, 1927) in overall appearance and male pleopods, but it can be distinguished in having two setae at the distal apex of the male pleopod 1 exopod. Furthermore, the molecular data recognized both species as distinct taxonomic entities they can also be separated based on molecular analyses (Fig. 5 View Figure 5 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Isopoda

Family

Agnaridae

Genus

Lucasioides