Alboculus Liu, 2020

Mu, Yannan & Zhang, Feng, 2023, Further additions to the guardstone spider fauna from China (Araneae: Phrurolithidae), Zootaxa 5338 (1), pp. 1-104 : 13

Alboculus Liu, 2020

Alboculus Liu et al., 2020: 4

(type species: Phrurolithus zhejiangensis Song & Kim, 1991 , by original designation and monotypic).

Diagnosis. This genus can be distinguished from the other phrurolithid genera by the oval PME without a layer of black pigment around the eye cup, lacking distinct longitudinal and radial stripes on the carapace and chevron stripes on the abdomen.

Description. Small spiders. Carapace oval, smooth, without distinct cervical groove and radial striae. AME rounded, PME oval, light-coloured, without black pigment, anterior eye row straight, posterior eye row procurved. Chelicerae with two (one long and another short) spines anteriorly. Femur I with two prolateral spines; tibia I with five pairs of ventral spines, tibia II with five proventral spines and four retroventral spines; metatarsus I with four proventral spines and three retroventral spines, metatarsus II with three proventral spines and two retroventral spines. Abdomen oval, with distinct chevron stripes posteriorly in dorsal view, with small and thin dorsal scutum anteriorly in male, absent in female. Male palp: femoral apophysis well developed; tibia with one retrolateral tibial apophysis; sperm duct thin and distinct; embolus short. Female epigyne: epigynal plate with copulatory atrium medially, copulatory openings small; copulatory ducts and glandular appendages slender; spermathecae round.