Speocera longyan Li & Li, 2019

Tong, Yanfeng, Li, Fengyuan, Song, Yang, Chen, Haifeng & Li, Shuqiang, 2019, Thirty-two new species of the genus Speocera Berland, 1914 (Araneae: Ochyroceratidae) from China, Madagascar and Southeast Asia, Zoological Systematics 44 (1), pp. 1-75 : 38-43

publication ID

https://doi.org/ 10.11865/zs.201901

publication LSID

lsid:zoobank.org:pub:044F94BB-26D6-486A-95B6-F137F5C9AACB

DOI

https://doi.org/10.5281/zenodo.5459967

persistent identifier

https://treatment.plazi.org/id/C73287EE-1051-3346-FF2D-710DFD6DD49B

treatment provided by

Diego

scientific name

Speocera longyan Li & Li
status

sp. nov.

Speocera longyan Li & Li View in CoL sp. nov. ( Figs 31–32 View Figure 31 View Figure 32 , 56G View Figure 56 )

Material examined. Holotype ♂ ( IZCAS), China, Guangxi Zhuang Autonomous Region , Hechi City , Du’an County, Xia’ao Town , Longyan Cave , 15.III.2015 (24º4.402′N, 108º3.257′E), elev. 173 m, leg. Z. Chen & Y. Li. Paratypes 2♂ 3♀ ( IZCAS), same data as holotype GoogleMaps .

Etymology. The specific name is derived from the type locality; noun.

Diagnosis. The new species is similar to S. bachma Li & Li sp. nov., but males can be distinguished by the laterally strongly curved chelicerae ( Fig. 56G View Figure 56 ) and the asymmetrical male palpal bulb ( Figs 31A–B View Figure 31 ), and females by the tubular spermathecae ( Fig. 32A View Figure 32 ). S. bachma males have unmodified chelicerae ( Fig. 55C View Figure 55 ), a symmetrical male palpal bulb ( Figs 5A–B View Figure 5 ), and females have oval spermathecae ( Fig. 6A View Figure 6 ).

Description. Male. Total length 1.05; carapace length 0.51; carapace width 0.41; abdomen length 0.62; abdomen width 0.42. Prosoma: carapace pyriform, narrowing gradually anteriorly; shiny, light yellow, suffused with purplish pattern ( Fig. 32A View Figure 32 ); pars cephalica flat; fovea not visible. Sternum light yellow, suffused with purplish color, longer than wide. Endites light yellow suffused with purplish tinge; with serrula; labium light yellow suffused with purplish tinge. Clypeus nearly vertical; short. Chelicerae light yellow, lateral margin strongly curved; promargin with a series of six teeth reaching the lamina; retromargin with two small denticles ( Fig. 56G View Figure 56 ). Eyes: six contiguous eyes surrounded by black pigmentation; PME smallest, ALE largest ( Fig. 32C View Figure 32 ). Opisthosoma oval; purplish. Legs light yellow; leg formula 4123; leg lengths I 1.97 (0.56, 0.18, 0.56, 0.38, 0.29); II 1.80 (0.51, 0.16, 0.51, 0.35, 0.28); III 1.60 (0.45. 0.14, 0.41, 0.34, 0.26); IV 2.18 (0.63, 0.16, 0.61, 0.45, 0.33). Genitalia ( Fig. 31 View Figure 31 ). Palpal femur long; palpal tibia as long as cymbium ( Figs 31A–B View Figure 31 ). Cymbium conical, without prolateral extension. Bulb asymmetrical, elliptical, with a small apophysis distally. Embolus short, butterfly-like and without distinct associated sclerites; sperm duct initially wide, gradually narrowing distally ( Fig. 31D View Figure 31 ).

Female. Total length 1.14; carapace length 0.52; carapace width 0.43; abdomen length 0.62; abdomen width 0.49. Similar to male in color and general features ( Figs 32D–E View Figure 32 ) but larger. Chelicerae unmodified. Leg formula 4123; leg lengths I 1.99 (0.58, 0.16, 0.58, 0.38, 0.29); II 1.82 (0.52, 0.16, 0.50, 0.34, 0.29); III 1.70 (0.47. 0.16, 0.45, 0.36, 0.27); IV 2.18 (0.61, 0.16, 0.64, 0.46, 0.33). Genitalia. Internal genitalia with afferent spermathecae short, strongly curved posteriorly from the epigastric furrow, not extending past the sides of the abdomen ( Fig. 32B View Figure 32 ); spermathecae tubular shaped ( Fig. 32A View Figure 32 ).

Distribution. Known only from the type locality.

IZCAS

Institute of Zoology, Chinese Academy of Sciences

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Ochyroceratidae

Genus

Speocera

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