Colopsus tenuesi, Kanesharatnam & Benjamin, 2021

Kanesharatnam, Nilani & Benjamin, Suresh P., 2021, Phylogenetic relationships and systematics of the jumping spider genus Colopsus with the description of eight new species from Sri Lanka (Araneae: Salticidae), Journal of Natural History 54 (43 - 44), pp. 2763-2814 : 2792-2794

Colopsus tenuesi sp. nov.

( Figures 7 (c), f, Figures 16 (a–f))

Type material

Holotype, ♂ (IFS_SAL_1076), Sri Lanka, Uva Province, Monaragala District, Kataragama Peak , 06° 23ʹ 20ʺ N, 81° 19ʹ 52ʺ E, 22–23-XI-2017, beating, leg. SP. Benjamin at al.

Etymology

The species name is an arbitrary combination of letters formed to be used as a word and refers to thin embolus compared to its congeners. Used as a noun in apposition.

Diagnosis

The species is distinguishable from closely related species C. cancellatus and C. ferruginus sp. nov. by comparably short embolus ( Figures 7 (c), Figures 16 (c,e)), posterolateral origin of embolus, broad RTA with ventrally curved tip ( Figures 7 (c,f), Figures 16 (c,e,f)).

Description

Male: Large spiders. Brown prosoma covered with brownish green scales near the edges ( Figure 16 (a)). Ocular field slightly elevated. Eyes covered with blackish brown rings. Chelicerae pale yellowish brown, covered with pale white hairs. Sternum oval with prominent indentation near coxae IV ( Figure 16 (b)). Prosoma high, slightly broader than abdomen and posterior margin of prosoma steep, slightly truncated. Leg I rather robust, elongated, dense black bristles on patella I, tibia I, metatarsus I.

Abdomen slightly narrower than prosoma, tapering posteriorly. Dorsum pale brown with reddish brown longitudinal stripes extending towards posterior portion ( Figure 16 (a)). Ventrum pale yellowish brown with greenish brown dots extending from epigastric furrow to spinnerets ( Figure 16 (b)). Spinnerets brownish green. Measurements: TL 11.85, AL 7.10, AW 3.23, PL 4.72, PW 4.50.

Pale yellow, cymbium with gradually narrowing distal region. Embolus thin, comparably short originated from postero-lateral bulbus ( Figures 7 (c), Figures 16 (c,e)). Rounded bulbus without posterior lobe ( Figures 7 (c), Figures 16 (c,e)). Sperm duct comparably broader at the distal tegulum, narrower at posterior end. Palpal tibia much longer. Medium-sized RTA with ventrally curved tip ( Figures 7 (c,f), Figures 16 (c,e,f)).

Female: unknown

Figures

Figure 7. Colopsus cancellatus (a, d), Colopsus ferruginus sp. nov. (b, e) and Colopsus tenuis sp. nov. (c, f). (a–c). palp, ventral view. (d–f). palp, retrolateral view. Abbreviations: e = embolus; dcrta = dorsal curve of rta; sd = sperm duct; t = tegulum; vcrta = ventral curve of rta. Scale bars: a–f = 0.2 mm.

Figure 16. Colopsus tenuis sp. nov. (a, b). Male habitus, (a). dorsal view, (b). ventral view. (c–f). Male palp, (c). ventral view. (d). prolateral view. (e). ventral view. (f). retrolateral view. Scale bars: (a, b) = 2 mm, (c) = 0.5 mm, (d–f) = 0.2 mm.