Anemesia infumata, Zonstein, 2018

Zonstein, Sergei, 2018, A revision of the spider genus Anemesia (Araneae, Cyrtaucheniidae), European Journal of Taxonomy 485, pp. 1-100 : 42-44

publication ID	https://doi.org/ 10.5852/ejt.2018.485
publication LSID	lsid:zoobank.org:pub:55A0F74D-FA80-4C6A-AD74-B49C9061A449
DOI	https://doi.org/10.5281/zenodo.3848283
persistent identifier	https://treatment.plazi.org/id/E256AE02-439D-4044-BB6C-5355A94CA677
taxon LSID	lsid:zoobank.org:act:E256AE02-439D-4044-BB6C-5355A94CA677
treatment provided by	Valdenar
scientific name	Anemesia infumata
status	sp. nov.

Treatment

Anemesia infumata View in CoL sp. nov.

urn:lsid:zoobank.org:act:E256AE02-439D-4044-BB6C-5355A94CA677 Figs 13 View Figs 10–17 , 25 View Figs 18–26 , 36–37 View Figs 34–41 , 60 View Figs 48–62 , 74–75 View Figs 63–77 , 86 View Figs 78–89 , 102 View Figs 99–107 , 114 View Figs 108–116 , 130 View Figs 125–132 , 185 View Figs 173–187 , 217–219 View Figs 215–223 , 255–257 View Figs 245–265 , 287–288 View Figs 278–290 , 322–323, 345, 364, 373 View Fig

Diagnosis

Anemesia infumata sp. nov. differs from A. incana by a considerably narrower clypeus and noticeably larger eyes in both males and females ( Figs 60 View Figs 48–62 , 74–75 View Figs 63–77 ; cf. Figs 59 View Figs 48–62 , 73 View Figs 63–77 ). From the most similarly-looking A. infuscata sp. nov., males of A. infumata sp. nov. differ in the more tapering embolus which arises closer to the retrolateral side of the palpal organ ( Figs 217–219 View Figs 215–223 ; cf. Figs 220–223 View Figs 215–223 ), while the conspecific females differ by their short and uniformly stout spermathecae ( Figs 255–257 View Figs 245–265 ; cf. Figs 258–265 View Figs 245–265 ).

Etymology

The specific epithet is derived from the Latin adjective ‘ infumatusi ’, meaning ‘smoked’, referring to the mostly darkened (blackened) colouration of these spiders. The gender is feminine.

Material examined

Holotype

TAJIKISTAN: Ƌ, Panj Karatau Mts , surroundings of Mt Astana, 1400–1600 m, 37°23′ N, 69°15′ E, 23 Apr. 1991, S. Zonstein leg. ( SMNH).

GoogleMaps

Paratypes (1 Ƌ, 6 ♀♀)

TAJIKISTAN: 1 Ƌ, 5 ♀♀, same collection data as for the holotype but 22–24 Apr. 1991, S. Zonstein and S. Ovchinnikov leg. ( SMNH); 1 ♀, same collecting date as for preceding but 0.3 km E of summit, 1670 m, 37°23.2′ N, 69°14.8′ E, 4 May 2015, S. Zonstein leg. ( SMNH).

Additional material

TAJIKISTAN: 2 ♀♀, same ridge, Akkutal Pass 35 km NNE of Panj Town, ca 800 m, 37°18′ N, 69°18′ E, 23–25 Apr. 1967, E. Andreeva leg. ( MIZW).

Description

Male (holotype)

HABITUS. See Fig. 13. View Figs 10–17

MEASUREMENTS. TBL 18.30, CL 6.65, CW 5.88, LL 0.58, LW 1.22, SL 3.75, SW 3.39.

COLOUR. Carapace intensely dark mahogany, with darker brown clypeus, margins, thoracic grooves, and numerous small spots forming reticulate pattern on mahogany background; eye tubercle brownish black; chelicerae, palps, leg I entirely, leg II from femur to tibia, femora III and IV dark chestnut brown; other segments of legs III and IV, and metatarsus and tarsus II light to medium brownish orange; maxillae orange, sternum and labium medium brownish orange; abdomen greyish, dorsally with dark coffee brown pattern consisting of median longitudinal stripe, very broad in anterior half, but narrow and fused with several paired chevrons in posterior half; spinnerets pale brownish yellow.

PROSOMA. Clypeus and eye tubercle as in Fig. 60 View Figs 48–62 . Eye diameters and interdistances: AME 0.18(0.26), 0.38, 0.24, 0.18, AME–AME 0.20(0.12), ALE–AME 0.19(0.15), ALE–PLE 0.16, PLE–PME 0.04, PME–PME 0.49. Cheliceral rastellum composed of ca 40 stout bristles lacking tips and located in front of fang base and on weakly developed low mound. Cheliceral furrow with 7–8 promarginal teeth and 7–10 smaller retromarginal teeth each ( Fig. 86 View Figs 78–89 ). Sternum, labium and maxillae as shown in Fig. 86 View Figs 78–89 . Sternal sigilla poorly defined; posterior sigillum divided into two separate parts. Each maxilla with 12 cuspules confined to probasal maxillary edge.

LEGS. Tibia and metatarsus I as shown in Fig. 130 View Figs 125–132 . Scopula entire and distal on metatarsus I, mixed and distal on metatarsus II, very narrowly divided on tarsus I, narrowly divided on tarsus II, widely divided on tarsi III, absent on tarsi IV. Trichobothria: 2 rows of 10–11 each on tibiae; 16–19 on metatarsi; 13–14 on tarsi, 11 on cymbium. PTC I–IV with 8–10 teeth on each margin.

SPINATION. Palp: femur d4, pd3, rd3–4; patella p1; tibia p4, v7–8 stout bristles; tarsus d5. Leg I: femur d5, pd3, rd3–4; patella p1; tibia p3, v6–7+m; metatarsus v4–5. Leg II: femur d5, pd4, rd2–4; patella p1–2; tibia p3, v8–9; metatarsus p2, v7. Leg III: femur d4, pd3, rd3; patella p3, r2; tibia d1, p3, r3, v7; metatarsus d2, p7, r3, v11–12; tarsus p6. Leg IV: femur d5, p3, r3; patella r1–2; tibia r3, v7–8; metatarsus d2, p4, r2, v13–15; tarsus pv8–9, r1–2. Tarsi I and II aspinose.

PALP. Tibia, cymbium and palpal organ as in Figs 185 View Figs 173–187 , 217–219 View Figs 215–223 . Tibia cylindrical with numerous thick ventral bristles ( Fig. 185 View Figs 173–187 ). Embolus tapering, slightly curved, embolic tip with small membranous keel ( Figs 217–219 View Figs 215–223 ).

SPINNERETS. See Fig. 287 View Figs 278–290 . PMS: length 0.63, diameter 0.31. PLS: maximal diameter 0.64; length of basal, medial and apical segments 1.38, 0.74, 0.91; total length 3.03; apical segment shortly digitiform.

Female (paratype)

HABITUS. See Figs 25 View Figs 18–26 , 36–37. View Figs 34–41

MEASUREMENTS. TBL 25.10, CL 8.19, CW 6.51, LL 0.92, LW 1.73, SL 4.24, SW 4.07.

COLOUR. Almost identical to that in male.

PROSOMA. Clypeus and eye tubercle as in Fig. 74 View Figs 63–77 . Eye diameters and interdistances: AME 0.19(0.33), ALE 0.46, PLE 0.40, PME 0.25, AME–AME 0.23(0.09), ALE–AME 0.23(0.16), ALE–PLE 0.14, PLE– PME 0.03, PME–PME 0.59. Cheliceral rastellum composed of numerous spikes located in front of fang base and on low mound. Each cheliceral furrow with 7 promarginal teeth and 6–7 smaller retrolateral teeth. Sternum, labium and maxillae as shown in Fig. 102 View Figs 99–107 . Sternal sigilla poorly defined; posterior sigillum fragmentary. Each maxilla with ca 20 cuspules.

LEGS. Scopula entire and distal on metatarsus I, distal and widely divided on metatarsus II, entire on palpal tarsus and tarsus I, widely divided on tarsus II, elsewhere absent. Trichobothria: 10–11 in each row on tibiae; 17–21 on metatarsi; 16–17 on leg tarsi, 14 on palpal tarsus. Palpal claw with 4 promarginal teeth. PTC I and II with 5–7 teeth on each margin, PTC III–IV with 6–7 teeth, respectively.

SPINATION. Palp: patella p1; tibia p3–4, v22–25; tarsus v4. Leg I: femur pd1; tibia p2, v5; metatarsus v4. Leg II: femur pd1–2; patella p1; tibia p2, v5; metatarsus p1, v7–9. Leg III: femur p0–2; patella p5, r1; tibia d1, p3, r2, v7–8; metatarsus d1, pd3, r6, v9; tarsus p2. Leg IV: tibia r2, v8–10; metatarsus p3, r2, v12–15; tarsus p4. All femora with 5–7, 2–3, and 3–4 long bristles instead of true spines, located medially, pro- and retrodorsally, respectively; patellae I and IV, and tarsi I and II aspinose.

SPERMATHECAE. Entire, short and evenly stout ( Fig. 255 View Figs 245–265 ).

SPINNERETS. See Fig. 288 View Figs 278–290 . PMS: length 0.78, diameter 0.43. PLS: maximal diameter 0.89; length of basal, medial and apical segments 1.46, 0.73, 0.96; total length 3.15; apical segment triangular to shortly digitiform.

Variation

The length of the carapace varies from 6.65 to 6.78 in males and in females from 5.58 to 8.09. There are small variations in the eye size and arrangement as shown in Figs 74–75 View Figs 63–77 . The shape of the palpal organ in both collected male congeners looks practically the same. The configuration of the spermathecae does not show any noticeable difference ( Figs 255–257 View Figs 245–265 ).

Habitat

As in A. incana (see above); however, A. infumata sp. nov. has been hitherto encountered in low and middle montane areas between 800 and 1700 m, with slopes covered by rarely standing trees ( Acer , Crataegus ), shrubs and steppe vegetation ( Figs 322–323 View Figs 322–329 ).

Distribution

Known currently from a few localities in South Tajikistan only, see Fig. 273 View Figs 266–277 .

Note

Two females from Akkutal Pass deposited in MIZW were collected, according to the cover label, by K. Andrejeva-Prószyńska, on the same date as the type series of Brachythele karatauvi : 23–25 Apr. 1967. It is likely, however, that these data are correct and that both groups of spiders were sampled during the same short-distance collecting trip. The measured air distance between Akkutal and Vahsh Karatau Mts is only 60–90 km, depending on the localities.