Ummidia solana, Echeverri & Gómez Torres & Pinel & Perafán, 2023

Echeverri, Mariana, Gomez Torres, Sebastian, Pinel, Nicolas & Perafan, Carlos, 2023, Four new species of mygalomorph spiders (Araneae, Halonoproctidae and Theraphosidae) from the Colombian Pacific region (Bahia Solano, Choco), ZooKeys 1166, pp. 49-90 : 49

publication ID

https://dx.doi.org/10.3897/zookeys.1166.101069

publication LSID

lsid:zoobank.org:pub:BBBF12DC-748E-4EBA-A4CB-690791561E72

persistent identifier

https://treatment.plazi.org/id/C21B3C70-626A-4B19-830E-25B8E74EC200

taxon LSID

lsid:zoobank.org:act:C21B3C70-626A-4B19-830E-25B8E74EC200

treatment provided by

ZooKeys by Pensoft

scientific name

Ummidia solana
status

sp. nov.

Ummidia solana sp. nov.

Figs 3 View Figure 3 , 4 View Figure 4 , 5 View Figure 5 , 6 View Figure 6 , 7 View Figure 7 , 8 View Figure 8 , 9 View Figure 9 , 10 View Figure 10

Type material.

Holotype ♂: Colombia, Chocó, Bahía Solano, Jardín Botánico del Pacífico, 6.38, -77.40, elevation 60 m a.s.l., 10-25 February 2022, M. Echeverri, S. Gómez Torres and C. Perafán leg. (ICN 12356). Paratype ♀: same data as holotype, except elevation 132 m a.s.l. (ICN 12357).

Etymology.

The specific epithet Ummidia solana is a noun in feminine refers to the municipality of Bahía Solano, one of the most beautiful places in the Colombian Pacific coast, recognized for having large and desolate beaches and landscapes of abundant vegetation. It is immersed in one of the world’s biodiversity hotspots. It is also said that the word “solano” means "wind from where the sun rises".

Diagnosis.

Ummidia solana sp. nov. can be differentiated from all geographically proximate species (see Godwin and Bond 2021) by the following combination of morphological features. Male: subcircular carapace, palpal bulb with thin and smoothly sinuous embolus, distally flattened (Fig. 7A-D View Figure 7 ); tibia I with numerous spines, 14 prolateral and 40 retrolateral; tarsus IV with defined comb on the retrolateral face (Fig. 6F View Figure 6 ) (males of U. quijichacaca and U. tibacuy unknown). Female: oval carapace, longer than wide, with strongly procurved fovea, wide and deep (Fig. 8A, B View Figure 8 ) (carapace longer than wide but angular in U. quijichacaca and wider than long and rounded in U. tibacuy , both with shallower fovea); basal segment of chelicerae with numerous lateral teeth (9-10) (4-6 in U. quijichacaca and U. tibacuy ); maxillae with two sets (proximal and distal) of few cuspules of similar number (ca. 12) (Fig. 9F View Figure 9 ) (27 proximal / 24 distal in U. quijichacaca and 38 proximal / 15 distal in U. tibacuy ); palp trochanter with distinct group of elongated cuspules (Fig. 9E View Figure 9 ) (unknown in the other species); labium with few weak subconical cuspules (4) (Fig. 9D View Figure 9 ) (7 in U. quijichacaca and 13 in U. tibacuy ); tarsus IV with comb of long spinules on the retrolateral face (Fig. 10E View Figure 10 ) (similar in U. quijichacaca and alternating long and short hairs in U. tibacuy ); and seminal receptacles straight oriented inwardly, mushroom-shaped distally subspherical, with wide rounded bulbs (Fig. 8E View Figure 8 ) (seminal receptacles mushroom-shaped but flat bulbs in U. quijichacaca and straight not mushroom-shaped in U. tibacuy ). Additionally, female and male (alive) with black carapace and legs, grayish abdomen, and male with reddish brown tarsi (Fig. 3A View Figure 3 ).

Distribution.

Known only from the type locality (Figs 1 View Figure 1 , 2 View Figure 2 ).

Description.

Male (holotype) (Figs 3A View Figure 3 , 4 View Figure 4 - 7 View Figure 7 ). Total length: 13.40. Chelicerae basal segment: length 1.37, width 1.47. Carapace: subcircular, glabrous, rugose, length 6.85, width 6.87; cephalic area elevated, length 4.8, height 0.59. Abdomen: egg-shaped with evenly distributed bristles set in strongly developed wart-like sockets. Spinnerets: PLS with three segments, total length 1.25 (basal 0.66, middle 0.29, apical digitiform 0.3); basal segments with fine, small, and macro-spigots, distal segment with numerous fine spigots and few macro-spigots. PMS with one segment, length 0.65, with numerous small spigots. (Fig. 4 View Figure 4 ).

Clypeus: length 0.38, without bristles; protracted onto membranous connection between carapace and chelicerae. Eye group (Fig. 4E View Figure 4 ): eight eyes on a raised ovoid tubercle, arranged in two rows on the near anterior edge of carapace; anterior eye row procurved, posterior eye row straight. Ocular tubercle: length 0.93, width 1.33. Eye diameters and interdistances: AME 0.36 (circular), ALE 0.42 (oval), PME 0.19 (circular), PLE 0.29 (oval), AME-AME 0.09, AME-ALE 0.09, ALE-ALE 0.94, PME-PME 0.49, PME-PLE 0.04, PLE-PLE 0.97, AME-PME 0.05, ALE-PLE 0.10. Thoracic fovea (Fig. 4E View Figure 4 ): transverse, highly procurved, deep, width 2.1; 4.48 from the anterior edge of carapace. Chelicerae basal segment: furrow with ca. six prolateral / eight retrolateral teeth. Rastellum: absent. Fang long. Maxillae (Fig. 5 View Figure 5 ): sub-rectangular, with ca. 24 left / 30 right cuspules uniformly distributed on the ventral posterior area; cuspules on the anterior inner edge absent. Labium (Fig. 5 View Figure 5 ): semi-dome shape, length 0.95, width 1.24, with ten weak subconical cuspules. Labio-sternal junction: narrow. Palp trochanter: without cuspules. Sternum (Fig. 5A View Figure 5 ): rounded, length 3.68, width 3.63; smooth, with few setae mainly on the edge. Lacking lateral sigilla, posterior sigilla large, central, and indistinct.

Legs pattern: IV>I>II>III. Lengths of legs and palpal segments on Table 1 View Table 1 . Tarsal claws: STC with single large and acute proximal tooth, ITC very short and steeply curved in all tarsi. Claw tufts: absent. Pseudoscopulae: tarsi I and II present, III and IV absent; metatarsi I and II present on distal edge, III and IV absent. Tarsal trichobothria: filiform present, 1-3 clavate trichobothria in all tarsi. All femora with wide membranous slits on proximal side. All legs and palp with many spiniform setae (Fig. 6 View Figure 6 ). All femora and the palp without spines.

Legs I (Fig. 6A-C View Figure 6 ) and II: lateral fields of short curvy spines on tarsus, metatarsus, tibia, and patella. Leg III (Fig. 6D, E View Figure 6 ): trochanter with blunt pointed apophysis on prolateral dorsal (Fig. 6D View Figure 6 ); femur swollen; patella strong, with prolateral field of eight short spines on half distal side; tibia short, strong saddle, flanked on either side by narrow membranous slits, with field of short spines on distal dorsal-prolateral side; metatarsus short, with dorsal field of four short spines on distal edge; tarsus short, with prolateral and retrolateral long spine field along full length of segment. Leg IV: retrolateral face of tarsus with defined comb over length of the segment (Fig. 6F View Figure 6 ).

Palp (Fig. 7 View Figure 7 ): femur distally wider, tibia swollen (Fig. 7E View Figure 7 ); palpal bulb pyriform, with subtegulum small, embolus thin, smoothly sinuous, distally flattened (Fig. 7A-D View Figure 7 ).

Coloration. Living spider: carapace black, rugose; ocular area black, PME yellow; chelicerae basal segment, palp, and legs black; tarsi reddish brown; abdomen gray, with cream color spotted pattern. In alcohol: carapace black; sternum brown; labium and maxillae reddish brown; legs dark brown; abdomen gray with spotted pattern; genital area, book lung openings and spinnerets light yellow.

Female (paratype) (Figs 3B View Figure 3 , 8 View Figure 8 - 10 View Figure 10 ). Total length: 19.1. Chelicerae basal segment: length 1.2, width 1.7. Carapace: oval, glabrous, shiny, length 10, width 7.9; cephalic area elevated, length 6.62, height 0.82. Abdomen: large, egg-shaped with evenly distributed bristles set in strongly developed wart-like sockets. Spinnerets: PLS with three segments, total length 1.63 (basal 0.77, middle 0.5, apical digitiform 0.36); basal segments with fine, small, and macro-spigots, distal segment with numerous fine spigots and few macro-spigots. PMS with one segment, length 0.78, with numerous small spigots. (Fig. 8 View Figure 8 ).

Clypeus: length 0.35, with few bristles; protracted onto membranous connection between carapace and chelicerae. Eye group (Fig. 8B View Figure 8 ): eight eyes on a raised ovoid tubercle, arranged in two rows on the near anterior edge of carapace; anterior eye row procurved, posterior eye row straight, slightly recurved. Ocular tubercle: length 1.12, width 1.94. Eye diameters and interdistances: AME 0.3 (circular), ALE 0.52 (oval), PME 0.5 (oval), PLE 0.42 (oval), AME-AME 0.13, AME-ALE 0.42, ALE-ALE 1.15, PME-PME 0.45, PME-PLE 0.11, PLE-PLE 1.15, AME-PME 0.17, ALE-PLE 0.27. Thoracic fovea (Fig. 8A, B View Figure 8 ): transverse, highly procurved, deep, width 2.67; 5.32 from the anterior edge of carapace. Chelicerae basal segment: furrow with ca. ten prolateral / nine retrolateral teeth. Rastellum (Fig. 9A, B View Figure 9 ): present, formed by many stout short spines, the majority arranged in very developed prolateral process. Fang long. Maxillae (Fig. 9D, F View Figure 9 ): sub-rectangular, with cuspules organized in two groups; one group with ca. 12 strong and larger cuspules, proximal and scattered throughout most of the article; the other one with ca. 13 smaller distal cuspules, the majority occupying the distal edge. Palp trochanter (Fig. 9E View Figure 9 ): with distinct group of ca. 13 elongated cuspules. Labium (Fig. 9C, D View Figure 9 ): semi-dome shape, length 1.35, width 1.83, with four weak subconical cuspules. Labio-sternal junction: narrow. Sternum (Fig. 9C View Figure 9 ): rounded, length 5.3, width 5.33; smooth, with few setae mainly on the edge. Lacking lateral sigilla, posterior sigilla large, central, and indistinct.

Legs pattern: IV>I>III>II. Lengths of legs and palpal segments on Table 2 View Table 2 . Tarsal claws:

STC with single large and acute proximal tooth, ITC very short and steeply curved in all tarsi. Claw tufts: absent. Pseudoscopulae: absent in all legs. Tarsal trichobothria: Palpal tarsus with ca. 13 clavate trichobothria on medial edge and four filiform trichobothria on distal edge; tarsi I-IV with 1-3 clavate trichobothria and few filiform trichobothria. All femora with wide membranous slits on distal side. All legs and palp with many spiniform setae (Fig. 10 View Figure 10 ). All legs femora and patellae I and II without spines.

Legs I (Fig. 10A, B View Figure 10 ) and II, and palp. Palp: femur with a wide row of fine spine-like setae (SLS) along 60% of the segment; patella with a low promedial lobe and four short and wide spines; tibia with a prolateral and retrolateral wide row of curved spines along full length of segment; metatarsus-tarsus with a prolateral and retrolateral wide row of curved spines along full length of segment. Femora I and II: with central rows of short fine SLS along full length of segment. Patellae I and II: with a low retromedial lobe, with three dorsal central rows of fine and short SLS along full length of segment, with some ventral long SLS. Tibiae I and II: with several row of dorsal SLS; tibia I with a wide prolateral and retrolateral row of curved spines along full length of segment; tibia II with a ventral row of lightly curved spines along full length of segment, with a prolateral row of short, curved spines along full length of segment. Metatarsi I and II: with dorsal SLS along full length of segment, and a prolateral and retrolateral row of curved spines along full length of segment. Tarsi I and II: with dorsal SLS and a prolateral and retrolateral row of short, curved spines.

Leg III (Fig. 10C, D View Figure 10 ). Trochanter: with blunt pointed apophysis on prolateral dorsal (Fig. 10C View Figure 10 ). Femur: swollen, with dorsal and ventral rows of SLS. Patella: dorsal with a central row of SLS along full length of segment, with ca. 13 prodorsal short and strong spines in distal edge. Tibia (Fig. 10D View Figure 10 ): short, strong saddle, flanked on either side by narrow membranous slits on either side, field of short and fine spines in median side, field of short spines on distal prolateral and dorsal side, with a dorsal row of SLS along full length of segment. Metatarsus: with dorsal and prolateral strong spines, larger than tibiae spines, with a ventral row of strong spines on the distal edge of segment. Tarsus: with prolateral and retrolateral long spines and SLS along full length of the segment.

Leg IV. Trochanter and femur: unmodified. Patella: with a wide dorsal central row, prolateral fields of short spines, rise in size toward distal side. Tibia: swollen, dorsal and prolateral with a row of short and fine spines along full length of segment. Metatarsus and tarsus: prodorsal and retrodorsal with SLS along full length of segment, and with ventral long spines covering the totality of the tarsus and 80% of the metatarsus. Retrolateral face of tarsus with defined comb of long spinules over length of the segment (Fig. 10E View Figure 10 ).

Spermathecae (Fig. 8E View Figure 8 ): two seminal receptacles, straight, oriented inwardly, mushroom-shaped distally subspherical, granulated appearance; proximal part tubular, glandular, medial part formed by a sclerotized band, distal part subspherical, glandular.

Coloration. Living spider: carapace black, smooth, shiny, darker than male; ocular area black, PME yellow; chelicerae basal segment, palp, and legs black; abdomen dark gray, with cream color spotted pattern. In alcohol: carapace dark brown; legs and palp brown with darker overtones, mainly in femora and in the distal segments of all legs; sternum, labium, and maxillae brown; abdomen greyish brown with spotted pattern; genital area, book lung openings, and spinnerets light yellow.

Remarks.

Ummidia solana sp. nov. is the third species described from the genus and the family Halonoproctidae for Colombia. Godwin and Bond (2021) previously described the species Ummidia quijichacaca and Ummidia tibacuy , both distributed in the center of the country, in the Eastern Cordillera of the Andean Region, and known only from female specimens. U. solana sp. nov. broadens the geographical distribution of the genus since it represents the first record from the Chocó Biogeographical Region. The male was captured walking at night while the female was captured inside her cave, also active at night. Her burrow was built on the ground under leaf litter.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Halonoproctidae

Genus

Ummidia