Goloboffia pachelbeli, Ferretti & Ríos-Tamayo & Goloboff, 2019

Ferretti, Nelson E., Ríos-Tamayo, Duniesky & Goloboff, Pablo A., 2019, Four new species of Goloboffia (Mygalomorphae: Migidae) from Chile, Zootaxa 4712 (2), pp. 251-268 : 260-264

publication ID

https://doi.org/10.11646/zootaxa.4712.2.5

publication LSID

lsid:zoobank.org:pub:185A7E45-F88F-40E4-BEB7-5C1C3DF9A63B

persistent identifier

https://treatment.plazi.org/id/C611B7ED-6A4A-486A-9E79-F65A2309D536

taxon LSID

lsid:zoobank.org:act:C611B7ED-6A4A-486A-9E79-F65A2309D536

treatment provided by

Plazi

scientific name

Goloboffia pachelbeli
status

sp. nov.

Goloboffia pachelbeli   sp. nov.

( Figs 48–71 View FIGURES 48–55 View FIGURES 56–59 View FIGURES 60–65 View FIGURES 66–70 View FIGURE 71 )

Type material. Holotype: ♂, MACN-Ar 36292, Chile, Región de Coquimbo (IV), Elqui, Totoralillo Norte (29°33′33.1″S, 71°18′57.8″W), collected under stone, 12.vii.2009, M. Izquierdo, A. Ojanguren, J. Pizarro and F. Alfaro, leg .. GoogleMaps   Paratypes: 1 ♂, MACN-Ar 36292, same collection data GoogleMaps   ; 1 ♀, MACN-Ar 36123, Chile, Región de Co- quimbo (IV), Route 5, 35 km north of La Serena, 2.xi.1988, P. Goloboff leg.  

Additional material examined. 1 juvenile, MACN-Ar 36123, Chile, Región de Coquimbo (IV), Route 5, 35 km north of La Serena , 2.xi.1988, P. Goloboff leg.  

Etymology. The specific epithet is a patronym in honor of Johannes Pachelbel (1653–1706), a German composer and organist, and one of the most important composers of the middle Baroque era.

Diagnosis. Males of Goloboffia pachelbeli   sp. nov shares with G. vellardi   the general aspect of the palpal bulb, but differ from them by a shorter, thicker and uniformly curved embolus ( Figs 56–57 View FIGURES 56–59 ) and by a more spinose metatarsi IV ( Fig. 54 View FIGURES 48–55 ); females differ from the other known species of Goloboffia   by the ocular group occupying almost the entire cephalic width (0.93) ( Fig. 64 View FIGURES 60–65 ), in combination with the absence of spines on tarsi III and IV ( Figs 66–67 View FIGURES 66–70 ). Females also differ by the shape of the spermathecae with long straight ducts 1.5 longer than spermathecal head width, large oval lobes ( Fig. 70 View FIGURES 66–70 ).

Description. Holotype male, MACN-Ar 36292. Coloration (in alcohol): Carapace and chelicerae reddish brown, legs brown, abdomen brownish with grayish central chevron ( Figs. 48–51 View FIGURES 48–55 ). Total length 9.04; carapace 4.73 long, 4.44 wide. Fovea deep, slightly recurved with recurved ends, 0.77 wide. Ocular group 1.89 wide, occupying 0.47 of cephalic width ( Fig. 50 View FIGURES 48–55 ). Eye sizes and interdistances: AME 0.19, PME 0.14, ALE 0.39, PLE 0.13, AME–AME 0.15, AME–ALE 0.41, PLE–PME 0.11, PME–PME 0.77. Labium 0.66 long, 0.63 wide, without cuspules. Labium separated from sternum by shallow groove. Maxillae without cuspules ( Fig. 52 View FIGURES 48–55 ). Fangs keeled and chelicerae with subequal teeth, 4 promarginal and 4 retromarginal, and 18 denticles between margins. Sternum elongated, 2.54 long, 2.08 wide. Posterior sigillae shallow and oval ( Fig. 49 View FIGURES 48–55 ). Leg formula 4123. Segment lengths (femur, patella, tibia, metatarsus, tarsus, total): I: 4.25, 1.68, 2.94, 2.59, 0.84, 12.3. II:3.8, 1.65, 2.66, 1.89, 0.8, 10.8. III: 2.71, 1.29, 2.36, 1.69, 0.87, 8.92. IV: 3.81, 1.98, 3.06, 2.54, 1.14, 12.53. Palp: 2.67, 0.8, 2.46, –, 0.55, 6.48. Spines: Femur: Palp: 1d; I: 1 – 1 – 1d, 1 – 1 – 1 – 1 – 1 – 2p; II: 1 – 1 – 1d, 1 – 1p; III: 1 – 1d, 1r; IV: 1 – 1 – 1d. Patella: Palp: 0; I: 2p, 1 – 2v; II: 1p, 1v; III: 1 – 1 – 2d, 1r; IV: 0. Tibia: Palp: 0 ( Figs. 58–59 View FIGURES 56–59 ); I: 1 – 1 – 1 – 1p, 2 – 1 – 1 – 2 – 1 – 2v ( Fig. 53 View FIGURES 48–55 ); II: 2 – 2 – 1 – 2 – 2v, 1 – 1 – 1p; III: 1 – 2v; IV: 2v. Metatarsus: I: 1 – 1 – 1p, 1 – 1 – 1r; II: 1 – 1 – 1 – 1p, 1 – 1 – 1 – 1r; III: 1 – 1p ( Fig. 55 View FIGURES 48–55 ); IV: 1 – 2v, 1p, 1r ( Fig. 54 View FIGURES 48–55 ). Tarsus: I – IV: 0.

Bulb globose on base with short and thick embolus uniformly curved and expanded at tip ( Figs. 56–59 View FIGURES 56–59 ).

Female (MACN-Ar 36123), coloration (in alcohol): Carapace, legs and chelicerae brown, abdomen light gray ( Figs 60–62 View FIGURES 60–65 ). Total length 12.25; carapace 5.09 long, 4.23 wide. Fovea deep, straight with recurved ends, 1.14 wide. Ocular group 3.31 wide, occupying 0.93 of cephalic width ( Fig. 64 View FIGURES 60–65 ). Eye sizes and interdistances: AME 0.79, PME 0.84, ALE 2.54, PLE 0.63, AME–AME 0.8, AME–ALE 3.57, PLE–PME 0.66, PME–PME 4.99. Labium 0.86 long, 0.85 wide, with 6 cuspules. Labium separated from sternum by shallow groove. Maxillae with 10/7 (right/left) cuspules ( Fig. 65 View FIGURES 60–65 ). Fangs keeled and chelicerae with subequal teeth, 4 promarginal and 4 retromarginal, and 9 denticles between margins. Sternum elongated 3.03 long, 2.31 wide. Posterior sigillae shallow, small and airfoil shaped ( Fig. 63 View FIGURES 60–65 ). Leg formula 4123, tibiae and metatarsi I and II flattened, with very long spines ( Figs 68–69 View FIGURES 66–70 ). Segment lengths (femur, patella, tibia, metatarsus, tarsus, total): I: 3.5, 1.97, 2.1, 1.6, 0.79, 9.96. II: 2.72, 1.42, 1.65, 1.15, 0.54, 7.48. III: 2.28, 1.45, 1.41, 1.3, 0.81, 7.25. IV: 3.52, 2.04, 2.52, 2.67, 0.95, 11.7. Palp: 1.9, 0.82, 0.91, –, 1.11, 4.74. Spines: Femur: Palp and legs I – IV, 0. Patella: Palp: 1p; I: 1p; II: 1p; III: 15p; IV: 45d. Tibia: Palp: 1p, 1r; I: 6p, 11r; II: 5p, 5r; III: 13p; IV: 0. Metatarsus: I: 5p, 6r; II: 5p, 5r; III: ventral comb of 7 large and 14 small spines ( Figs 66–67 View FIGURES 66–70 ); IV: ventral comb of 13 large spines. Tarsus: Palp: 3p, 3r, 6v; I: 3p, 4r, 8v; II: 3p, 8r, 10v; III: 0; IV: 0.

Spermathecae having oval lobes that point outwards with a well-developed constriction between lobes and ducts only in outer faces of receptacles, ducts very long (1.5 longer than spermathecal head width) ( Fig. 70 View FIGURES 66–70 ).

Distribution. Known from Totoralillo and La Serena at Elqui province ( Fig. 71 View FIGURE 71 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Migidae

Genus

Goloboffia