Sparianthis chickeringi ( Gertsch, 1941 ), Rheims, 2020

Rheims, Cristina A., 2020, Revision of the spider genus Sparianthis Simon, 1880 (Araneae, Sparassidae Sparianthinae), Zootaxa 4890 (2), pp. 151-191: 164-166

publication ID

https://doi.org/10.11646/zootaxa.4890.2.1

publication LSID

lsid:zoobank.org:pub:5EF7FF4A-0857-415F-B30F-DA2910F5B6EB

DOI

http://doi.org/10.5281/zenodo.4333410

persistent identifier

http://treatment.plazi.org/id/4E338797-872D-FFFE-D8E9-7D49FB8BF9E2

treatment provided by

Plazi

scientific name

Sparianthis chickeringi ( Gertsch, 1941 )
status

comb. nov.

Sparianthis chickeringi ( Gertsch, 1941)   comb. nov.

Figs 39–53 View FIGURES 39–42 View FIGURES 43–47 View FIGURES 48–53 , 144 View FIGURES 143–144

Tentabunda chickeringi Gertsch, 1941: 12   , fig. 33 (Holotype ♀ from Panama, Canal Zone   GoogleMaps , Barro Colorado Island [9.1500, - 79.8333], AMNH, examined).

Pseudosparianthis chickeringi   . Roewer 1955: 683, World Spider Catalog 2020.

Additional material examined. PANAMA: Canal Zone: 1♀, Barro Colorado Island [9.1500, -79.8333], 28 July 1939, A.M. Chickering leg. ( MCZ 69080 View Materials ) GoogleMaps   ; 1♀, 2 juv., 3 July 1954 ( MCZ 69081 View Materials )   ; 1♀, 25 June 1939 ( MCZ 69082 View Materials )   ; 1♀, 15 August 1954 ( MCZ 69083 View Materials )   ; 1³, 30 July 1936 ( MCZ 69084 View Materials )   ; 1♀, 1juv., 5 August 1939 ( MCZ 69085 View Materials )   ; 1♀, 21 August 1954 ( MCZ 69086 View Materials )   ; 1³, 1 juv., 8 July 1939 ( MCZ 69087 View Materials )   ; 1♀, 28 July 1936 ( MCZ 69088 View Materials )   ; 1♀, 1 juv., 18 August 1936 ( MCZ 69089 View Materials )   ; 1♀, 2 July 1950 ( MCZ 69090 View Materials )   ; 1♀, no date ( MCZ 69091 View Materials )   ; 1♀, July 1950 ( MCZ 69093 View Materials )   ; 4³, 1♀, 2 juv., 1934 ( MCZ 69094 View Materials )   ; 1³, 1941 ( MCZ 69095 View Materials )   ; 1³, 1♀, August 1950 ( MCZ 69096 View Materials )   ; 1♀, 15 July 1950 ( MCZ 69097 View Materials )   ; 1♀, June 1950 ( MCZ 69098 View Materials )   ; 1³, 2 July 1954 ( MCZ 69099 View Materials )   ; 1♀, June 1950 ( MCZ 69100 View Materials )   ; 1♀, 22 August 1939 ( MCZ 69101 View Materials )   ; 1♀, 4 July 1936 ( MCZ 69102 View Materials )   ; 1♀, 13 July 1954 ( MCZ 69103 View Materials )   ; 1³, 2 August 1926 ( MCZ 69104 View Materials )   , all from the same locality and with the same collector   . Colon: 1³, 1 juv., Portobello [9.6500, -79.6500], August 1936, A.M. Chickering leg. ( MCZ 69092 View Materials ) GoogleMaps   .

Diagnosis. Males of S. chickeringi   resemble those of S. caracarai   sp. nov. and S. ravida   by the palp with mRTA represented by small, short, blunt projection, arising from tibia, close to vRTA ( Figs 34 View FIGURES 32–38 , 50 View FIGURES 48–53 , 139 View FIGURES 137–142 ). They are distinguished from the latter species by the TBE with apical projection gutter-shaped and TBC reduced to narrow keel, not covering base of conductor (TBE with distal projection short and laminar and TBC wider, covering base of conductor in the other species) ( Fig. 49 View FIGURES 48–53 ). Females are distinguished from all other species of the genus by anterior furrow medially indented and lateral lobes bearing secondary furrows that extend anteriorly reaching anterior furrow ( Figs 46 View FIGURES 43–47 , 51 View FIGURES 48–53 ).

Description. Male ( MCZ 69094 View Materials ): Prosoma, chelicerae, legs and palps brown; fovea darker brown; eye borders black. Labium and endites brown, distally yellowish brown. Sternum brownish yellow with pale brown margins. Opisthosoma brownish gray; dorsally with dense dorsal pattern of irregular marks laterally, dark cardiac mark and 4–5 median chevrons on posterior half; ventrally with few scattered spots laterally and V-shaped lines of muscle sigilla reaching half the opisthosoma length ( Figs 39–40 View FIGURES 39–42 ). Total length 10.6. Prosoma: 5.0 long, 4.1 wide. Opisthosoma: 5.2 long, 3.0 wide. Eyes: diameters: 0.35, 0.25, 0.17, 0.25; interdistances: 0.25, 0.10, 0.53, 0.33, 0.15, 0.06. Legs (1243): I: 16.0 (4.5, 2.3, 4.1, 4.2, 0.9); II: 15.8 (4.6, 2.3, 3.9, 4.1, 0.9); III: 12.3 (3.7, 2.0, 2.7, 3.1, 0.8); IV: 15.0 (4.3, 1.8, 3.4, 4.4, 1.1). Spination follows the generic pattern except tibia III–IV: d0-0-1; metatarsus III: v1p-2-2. Metatarsus III with single, ventral distal spine; metatarsus IV with ventral distal preening comb. Palp: tibia with prolateral spines short; tegulum with retro-proximal protrusion; embolus slender, with no projections, running distally and curving ventral-proximally at distal margin of alveolus ( Figs 43–45 View FIGURES 43–47 , 48–50 View FIGURES 48–53 ).

Redescription. Female ( MCZ 69094 View Materials ): coloration pattern as in male, much lighter. Opisthosoma ventrally with more lateral marks on posterior half and less conspicuous muscle sigilla ( Figs 41–42 View FIGURES 39–42 ). Total length 11.6. Prosoma: 5.1 long, 4.1 wide. Opisthosoma: 6.4 long, 3.5 wide. Eyes: diameters: 0.30, 0.25, 0.17, 0.24; interdistances: 0.34, 0.13, 0.55, 0.34, 0.21, 0.14. Legs (1243): I: 14.9 (4.4, 2.4, 3.9, 3.4, 0.8); II: 14.6 (4.4, 2.4, 3.6, 3.4, 0.8); III: 11.5 (3.6, 1.9, 2.6, 2.6, 0.8); IV: 13.7 (4.2, 1.8, 3.1, 3.7, 0.9). Spination follows the generic pattern except tibia III: r1-0- 1; tibia IV d0-0-1; metatarsus IV r1-1-0. Metatarsus III with single, ventral distal spine; metatarsus IV with ventral distal preening comb. Epigyne: epigynal field rectangular, longer than wide; median septum longer than wide, narrowed anteriorly, with posterior margin rounded ( Figs 46 View FIGURES 43–47 , 51 View FIGURES 48–53 ). Vulva: internal ducts slender, approximately one fourth spermathecae width from copulatory openings to first turn and half spermathecae width from first turn to spermathecae; first turn anteriad; glandular projection large, rounded, arising from ducts at first turn; spermathecae oval, consisting of coiled ducts ( Figs 47 View FIGURES 43–47 , 52–53 View FIGURES 48–53 ).

Variation. Male (n = 10): total length: 10.5–12.5; prosoma length 5.0–5.5; femur I length 4.5–5.2. Females (n = 10): Total length 10.8–16.0; prosoma length 4.7–6.0; femur I length 3.7–4.6.

Distribution. Known from central Panama, Canal Zone and Colón ( Fig. 144 View FIGURES 143–144 ).

MCZ

Museum of Comparative Zoology

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Sparassidae

Genus

Sparianthis

Loc

Sparianthis chickeringi ( Gertsch, 1941 )

Rheims, Cristina A. 2020
2020
Loc

Pseudosparianthis chickeringi

Roewer, C. F. 1955: 683
1955
Loc

Tentabunda chickeringi

Gertsch, W. J. 1941: 12
1941