Speocera trapezialis 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 : 56

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.5459981

persistent identifier

https://treatment.plazi.org/id/C73287EE-1043-335B-FF2D-77D5FD6DD22F

treatment provided by

Diego

scientific name

Speocera trapezialis Li & Li
status

sp. nov.

Speocera trapezialis Li & Li View in CoL sp. nov. ( Figs 43–44 View Figure 43 View Figure 44 , 56I View Figure 56 )

Material examined. Holotype ♂ ( IZCAS), Vietnam, Quang Binh Province, Phong Nha-ke Bang National Park, Botanic Garden (17º33.150′N, 106º18.083′E), elev. 117 m, 14.V.2016, Leg. Q. Zhao & Z. Chen. Paratype 1♀ ( IZCAS), same data as holotype GoogleMaps .

Etymology. The specific name is derived from ancient Greek and refers to the trapezoidal male palpal bulb; adjective.

Diagnosis. The males of this new species can be distinguished from all the other congeners by the trapezoidal palpal bulb ( Figs 43A–B View Figure 43 ) and the females by the very long, tubular spermathecae ( Fig. 44A View Figure 44 ).

Description. Male. Total length 0.99; carapace length 0.51; carapace width 0.43; abdomen length 0.53; abdomen width 0.36. Prosoma: carapace pyriform, narrowing gradually anteriorly; light yellow, suffused with purplish pattern ( Fig. 44C View Figure 44 ); pars cephalica flat; fovea not visible. Sternum light yellow, suffused with purplish color, as long as wide. Endites light yellow suffused with purplish tinge; with serrula; labium light yellow suffused with purplish tinge. Clypeus nearly vertical; short. Chelicerae light yellow, laterally slightly curved; promargin with a series of six teeth reaching the lamina; retromargin with two very small denticles ( Fig. 56I View Figure 56 ). Eyes: six contiguous eyes surrounded by black pigmentation; PME and ALE nearly subequal, PLE largest ( Fig. 44C View Figure 44 ). Opisthosoma oval; purplish. Legs light yellow; leg formula 4123; leg lengths I 2.04 (0.59, 0.14, 0.61, 0.41, 0.28); II 1.88 (0.55, 0.16, 0.54, 0.37, 0.26); III 1.63 (0.48. 0.13, 0.43, 0.34, 0.25); IV 2.15 (0.63, 0.14, 0.59, 0.47, 0.32). Genitalia ( Fig. 43 View Figure 43 ). Palpal femur long; palpal tibia as long as cymbium ( Figs 43A–B View Figure 43 ). Cymbium conical, without prolateral extension. Bulb nearly trapezoidal. Embolus short, dark and basally without distinct associated sclerites; sperm duct initially wide, narrowing distally ( Fig. 43D View Figure 43 ).

Female. Total length 1.19; carapace length 0.51; carapace width 0.42; abdomen length 0.50; abdomen width 0.37. Similar to male in color and general features ( Figs 44D–E View Figure 44 ) but larger. Chelicerae unmodified. Leg lengths I 1.96 (0.55, 0.16, 0.58, 0.40, 0.28); II missing; III 1.57 (0.44. 0.14, 0.41, 0.34, 0.24); IV 2.11 (0.59, 0.15, 0.61, 0.46, 0.31). Genitalia. Internal genitalia with afferent spermathecae very short, strongly curved posteriorly from the epigastric furrow, not extending past the sides of the abdomen ( Fig. 44B View Figure 44 ); spermathecae long, tubular ( Fig. 44A View Figure 44 ).

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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