Stenoterommata gugai , Indicatti, Rafael P., Chavari, João L., Zucatelli-Júnior, Maurílio, Lucas, Sylvia M. & Brescovit, Antonio D., 2017

Indicatti, Rafael P., Chavari, João L., Zucatelli-Júnior, Maurílio, Lucas, Sylvia M. & Brescovit, Antonio D., 2017, Six new species of silk-lined burrow spider genus Stenoterommata Holmberg, 1881 (Araneae, Nemesiidae) from southern Brazil, Zootaxa 4254 (4), pp. 435-456: 442-444

publication ID

https://doi.org/10.11646/zootaxa.4254.4.2

publication LSID

lsid:zoobank.org:pub:3F71E7F2-F9AB-4982-A5B9-D7D00A30A015

persistent identifier

http://treatment.plazi.org/id/03E687AF-FFFD-D751-FF05-FBF5A23E9A06

treatment provided by

Plazi

scientific name

Stenoterommata gugai
status

sp. nov.

Stenoterommata gugai  sp. nov.

( Figs 3, 4View FIGURES 1 – 6, 12–16View FIGURES 7 – 16)

Types. Male holotype from Parque Municipal Lagoa do Peri  , 20 m asl, 27°43'26.10"S, 48°30'29.07"W, Santa Catarina Island, Florianópolis , Santa CatarinaGoogleMaps  , Brazil, vii–viii.2007, pitfall traps, M.I.M. Hernández coll. ( IBSPAbout IBSP 117357View Materials)  . Paratypes: same data as holotype, 1 male ( IBSPAbout IBSP 166079View Materials)GoogleMaps  ; i–iii.2012, pitfall traps, A.L. Trivia & A. Chagas Jr. coll., 1 female ( IBSPAbout IBSP 166081View Materials); Parque Municipal da Lagoinha do Leste, 120 m asl, 27°46'45.53"S, 48°30'07.86"W, Santa Catarina Island, Florianópolis , Santa CatarinaGoogleMaps  , Brazil, 27–31.viii.2014, R.P. Indicatti, J.L. Chavari & Y. Lemos coll., 1 female ( IBSPAbout IBSP 166212View Materials)  ; 1 male (IBSP 166213).

Additional material examined. BRAZIL, Santa Catarina: Florianópolis, Santa Catarina Island ( Parque Municipal da Lagoa do Peri  , 20 m asl, 27°43'26.10"S, 48°30'29.07"W), vii–viii.2007, pitfall traps, M.I.M. Hernández coll., 1 male ( IBSPAbout IBSP 166080View Materials)GoogleMaps  ; i–iii.2012, pitfall traps, A.L. Trivia & A. Chagas Jr. coll., 1 female (IBSP 166082); (Parque Municipal da Lagoinha do Leste, 120 m asl, 27°46'45.53"S, 48°30'07.86"W), 27–31.viii.2014, R.P. Indicatti, J.L. Chavari & Y. Lemos coll., 2 females (IBSP 166214; 166215); (Parque Municipal da Lagoinha do Leste, 40 m asl, 27°47'16.30"S, 48°30'25.30"W), 4–12.i.2015, R.P. Indicatti & B. Gambaré coll., 1 female, 1 juvenile (IBSP 166485).

Diagnosis. Males of S. gugai  sp. nov. resemble those of S. peri  sp. nov. in the long bulb keels ( Figs 12–14View FIGURES 7 – 16), but can be distinguished by the retrolateral keel being ca. half the length of the bulb ( Fig. 14View FIGURES 7 – 16) with a triangular apex and diagonal embolus tip ( Figs 12, 14View FIGURES 7 – 16). Females resemble those of S. leticiae  sp. nov. by the spermathecal base being anteriorly developed, covering the basal dome ( Figs 15, 16View FIGURES 7 – 16), but can be distinguished by the absence of an anterior projection where a receptaculum originates ( Figs 15, 16View FIGURES 7 – 16), and the abdomen with discernible dorsal chevron ( Fig. 4View FIGURES 1 – 6).

Etymology. The specific name is a patronym in honor of Gustavo Kuerten, known by the nickname, Guga. He is a retired former professional tennis player who was born in Florianópolis, Santa Catarina, Brazil. He won several tournaments, among them, three Grand Slam/Roland Garros, one Masters Cup and five Masters Series. In 2000, he reached the No. 1 position in world ranking of Association of Tennis Professionals. He has received honors from several institutions related to tennis and social activities.

Description. Male (holotype). Color pattern in ethanol: carapace and femora I–IV brown, patellae–tarsi yellowish brown. Body with light pubescence ( Fig. 3View FIGURES 1 – 6), covered with golden setae. Abdomen dorsally brownish yellow with brown mottling forming discrete chevron ( Fig. 3View FIGURES 1 – 6) and ventrally yellowish brown. In living specimen: body and leg pubescence covered with pinkish setae, and all segments darker ( Fig. 3View FIGURES 1 – 6). Total length 12.79. Carapace 5.67 long, 4.38 wide, with short, procurved fovea ( Fig. 3View FIGURES 1 – 6). Abdomen 5.42 long, 3.41 wide. Thoracic region slightly raised. Clypeus narrow, 0.10 ( Fig. 3View FIGURES 1 – 6). Eye tubercle weakly elevated, wider than long. Anterior eye row slightly procurved, posterior recurved. Eye sizes: AME 0.26, ALE 0.30, PME 0.22 and PLE 0.24. Chelicerae with seven teeth in prolateral row, with ca. 30 basal smaller teeth and rastellum weak, formed by long thin setae. Intercheliceral tumescence small, pale yellow covered with few setae. Labium 0.45 long, 1.03 wide, without cuspules. Maxillae with ca. 55 pointed, elongated cuspules on internal basal angle. Serrula developed. Sternum oval 3.25 long, 2.32 wide. Sternal sigilla small, granulate, marginal: anterior and median rounded, posterior ovalelongated, twice size of anterior, separated from margin by ca. 1/2 length. Palp: measurements: femur 2.42/ patella 1.50/ tibia 2.02/ cymbium 0.93/ total 6.85; spination: femur d0-0-0-2, tibia 0-0-0-1. Legs: measurements: I: femur 4.73/ patella 2.90/ tibia 3.70/ metatarsus 3.41/ tarsus 2.80/ total 17.54; II: 4.20/ 2.30/ 3.30/ 2.92/ 2.41/ 15.13; III: 3.85/ 1.90/ 2.69/ 3.60/ 2.32/ 14.36; IV: 5.32/ 2.40/ 3.92/ 5.10/ 2.50/ 19.24; spination: I: femur d0-0-0-2-2, patella 0, tibia v0-1r-0-1r-0-2-0-(1r megaspine), p0-1-0-1, metatarsus v0-1-0-2ap, p0-1-0-1; II: femur d0-0-0-1p-2, patella 0, tibia v0-1r-0-1r-0-2ap, p0-1-0-1-0, metatarsus v0-1r-0-1r-0-0-2ap, p0-1-0-1-0-0-1; III: femur d0-2-2-2-0, patella p0-1-1-1, r0-0-1-0, tibia v2 -0-2-0-3ap, p1-0-1-0, r0-1-0-1-0, metatarsus d1r-2-0-2-0-2, v0-2-0-2-3ap, p0-1-0-1-0-1, r0-0-0-1; IV: femur d0-1-0-2-0-1r-2-2-0, patella r0-0-1-0, tibia v0-2-0-0-2-0-0-2ap, p0-1-0-1-0, r0-1-0-1-0, metatarsus d0-1r-0-1p-0-1r-1p-0-0-2, v0-0-2-1p-0-1-0-3ap, p0-1-0-1-0-1-0, r0-1-0. Metatarsal preening combs: III: 4VP, 5VR thin setae; IV: 5VP, 3VR. Tarsi I–IV flexible. Scopulae on tarsi I, II dense and symmetric, III, IV light. Scopulae on tarsi I–IV divided by thin setae: I, II by two rows, III by five rows and IV by seven rows. Scopulae on 1/5 of metatarsi I, II divided by six rows of setae, III, IV absent. STCAbout STC large with double row of teeth: I: 5, 7, 7, 5; II: 6, 7, 7, 4; III: 5, 7, 6, 6; IV: 6, 6, 7, 6. ITCAbout ITC on tarsus IV (broken). Trichobothria and tarsal organ as in S. pavesii  sp. nov. Four spinnerets: PLS: basal segment 0.96, median segment 0.82, apical segment triangular 0.62 long. Spigots as in S. pavesii  sp. nov. Palp: cymbium with thin setae, resembling tarsal scopulae setae; tibia long, narrow ( Figs 12, 14View FIGURES 7 – 16) and with shallow ventral excavation ( Figs 12, 14View FIGURES 7 – 16); tibial excavation and basal region of tegulum ( Figs 12, 13View FIGURES 7 – 16) with grooves, suggesting possible stridulatory apparatus; bulb piriform with seven parallel keels ( Fig. 13View FIGURES 7 – 16).

Female (paratype IBSPAbout IBSP 166212). Color pattern and pubescence in ethanol, as in male. In living specimen: carapace and femur I–IV dark-brown ( Fig. 4View FIGURES 1 – 6) and patella to the tarsus reddish-brown. Total length 17.93. Carapace 6.52 long, 5.21 wide, with short and procurved fovea ( Fig. 4View FIGURES 1 – 6). Abdomen 8.11 long, 5.31 wide. Thoracic region slightly raised. Clypeus narrow, 0.22. Eye tubercle weakly elevated, wider than long. Anterior eye row procurved, posterior recurved. Eye sizes: AME 0.30, ALE 0.32, PME 0.20 and PLE 0.30. Chelicerae with 8/9 teeth in prolateral row, with ca. 35 basal smaller teeth; rastellum weak, formed by long thin setae. Labium 0.70 long, 1.32 wide, with one pointed cuspule. Maxillae with ca. 105 blunt cuspules on internal basal angle. Serrula absent. Sternum oval 3.84 long, 3.02 wide. Sternal sigilla as in male. Palp: measurements: femur 3.02/ patella 1.90/ tibia 2.01/ tarsus 1.20/ total 8.13; spination: femur d0-0-0-1p, tibia v2-2 -0-3ap, p0-1-0, tarsus v1 r-0-0-0. Legs: measurements: I: femur 4.44/ patella 3.20/ tibia 3.02/ metatarsus 2.81/ tarsus 1.90/ total 15.37; II: 4.02/ 2.71/ 2.51/ 2.60/ 2.01/ 13.85; III: 3.41/ 2.30/ 2.02/ 2.90/ 1.71/ 12.34; IV: 5.02/ 2.81/ 3.42/ 4.41/ 2.01/ 17.67; spination: I: femur d0-0-0-1p, metatarsus v1 r-0-0-3ap; II: femur d0-0-0-1p, metatarsus v1 r-1r-1p-0-2ap; III: patella p0-1-1-1, r0-1-1-0, tibia d0-0-1, v2 ap, p0-1-1-0, r0-1-1-0, metatarsus d1r-1r-1p-0-2-0-2, v0-2-0-2-0-3ap, p1-1-1; IV: patella r0-0-1-0, tibia d0-1r-0-1r-0, v2 ap, p0-1-0, metatarsus d1r-1p-1r-2-0-2, v0-2-0-1p-2-3ap, p1-1-1. Metatarsal preening combs: II: 5VP; III: 5VP, 5VR; IV: 3VP, 4VR. Tarsi I–III not flexible, rigid. Scopulae on tarsi I, II dense and symmetric, III, IV light. Scopulae on tarsi I undivided, II–IV divided by thicker setae: II by three rows, III by four rows, IV by 10 rows. Scopulae on full length of metatarsi I, II: I undivided, II divided by one row of setae. Scopulae on metatarsi III, IV absent. STCAbout STC large with double row of teeth: I: 4, 10, 10, 5; II: 5, 5, 5, 4; III: 4, 5, 5, 4; IV: 4, 6, 6, 4. ITCAbout ITC on tarsus IV. Palpal claw with four teeth on promargin. Trichobothria and tarsal organ as in S. pavesii  sp. nov. Four spinnerets: PLS: basal segment 0.65, median segment 0.95, apical segment triangular 0.55 long. Spigots as in S. pavesii  sp. nov. Spermathecae with posterior diagonally-elongated basal dome with two receptacula on each side ( Figs 15, 16View FIGURES 7 – 16).

Variation. Males (n=3): total length 12.00–13.65; carapace 4.80–5.67 long; maxillae with 55–60 cuspules. Females (n=5): total length 12.90–17.93; carapace 5.00–6.52 long; maxillae with 90–105 cuspules. Spermathecae with 2–3 receptacula on each side.

Distribution. Southern Brazil, state of Santa Catarina, Santa Catarina Island.

IBSP

Instituto Biologico de Sao Paulo

STC

Sichuan Teacher's College

ITC

International Transit Centre