Ummidia okefenokee, Godwin & Bond, 2021

Godwin, Rebecca L. & Bond, Jason E., 2021, Taxonomic revision of the New World members of the trapdoor spider genus Ummidia Thorell (Araneae, Mygalomorphae, Halonoproctidae), ZooKeys 1027, pp. 1-165 : 1

Ummidia okefenokee sp. nov. Fig. 14 , Map 3

Type material.

HOLOTYPE: 1 ♂ (UMM163) from Billy’s Island, Okefenokee Swamp, Charlton County, Georgia, United States, 30.8056 -82.3371 5, 36 m a.s.l., 17.v.1921, AMNH.

Etymology.

The specific epithet is a noun taken in apposition and refers to the type locality.

Diagnosis.

Ummidia okefenokee can be differentiated from U. audouini by the presence of a comb on the retrolateral face of tarsus IV, which is more defined than the comb in U. neilgaimani . Males can further be distinguished from U. gingoteague and U. carabivora by lacking spines on the prolateral aspect of tibia I and from U. rongodwini by lacking a pale dorsal heart patch. Males disperse from May to June.

Description of male holotype.

Specimen preparation and condition. Specimen preserved in 80% EtOH. Specimen has been dried at some point; many leg articles broken, in vial with specimen. General coloration. Carapace and chelicerae very dusky red 10R 2.5/2, legs dark brown 7.5YR 3/4. Abdomen black 10YR 2/1. Cephalothorax. Carapace 5.26 long, 4.86 wide. Pars cephalica 3.51 long. Foveal groove procurved with posterior pointed extension, 0.18 long, 0.88 wide. All eyes on moderate tubercle. AER procurved. PER straight. Eye group 0.63 long, 1.2 wide, AME 0.24, PME 0.17, ALE 0.32, PLE 0.25. Sternum with outer fringe of setae, STRl 2.83, STRw 2.81. Chelicerae with anterior tooth row comprising three teeth, posterior margin with five teeth. Palpal endites with mix of 28 hastate and small/thin cuspules over proximal half of endite face and lacking distal endite cuspules, ENDw 1.18, ENDl 2.07. Labium with five cuspules, LBw 1.11, LBl 0.71. Rastellum reduced with only small denticles on small process. Abdomen setose with pale speckles. Legs. F1 4.19; F1w 1.22; P1 2.16; Ti1 2.84; Mt1 1.82; Tr1 1.09; F3 3.25; F3w 1.28; P3 1.74; Ti3 1.69; Sd3 1; Mt3 1.74; Tr3 1.61; F4 4.07; F4w 1.25; P4 1.94; Ti4 2.64; Mt4 2.62; Tr4 1.57. Retrolateral face of tarsus IV with defined comb over length of tarsus. Leg I spination pattern: TSp 0, TSpv 0, TSrd 0, TSr 0, TSrv 19, MtSp 3, MtSr 8, TrSp 3, TrSr 9. Pedipalps. PTl 2.38, PTw 0.89, Bl 1.84. Embolus evenly curved.

Variation, males

(n = 2). CL 5.26-5.66, 5.46 ± 0.2; CW 4.86-5.55, 5.21 ± 0.34; Cap 3.51-4.11, 3.81 ± 0.3; ENDl 0.63-0.7, 0.67 ± 0.04; ENDw 1.2-1.33, 1.27 ± 0.07; STRl 2.83-3.18, 3.01 ± 0.17; STRw 2.81-3.05, 2.93 ± 0.12; LBl 0.71-0.75, 0.73 ± 0.02; LBw 1.11-1.11, 1.11 ± 0; F1 4.19-4.72, 4.46 ± 0.27; F1w 1.22-1.32, 1.27 ± 0.05; P1 2.16-2.36, 2.26 ± 0.1; Ti1 2.84-3.15, 2.99 ± 0.16; Mt1 1.82-1.97, 1.9 ± 0.07; Tr1 1.09-1.12, 1.1 ± 0.02; F3 3.25-3.63, 3.44 ± 0.19; F3w 1.28-1.5, 1.39 ± 0.11; P3 1.74-1.96, 1.85 ± 0.11; Ti3 1.69-1.99, 1.84 ± 0.15; Mt3 1.74-1.8, 1.77 ± 0.03; Tr3 1.61-1.74, 1.68 ± 0.06; F4 4.07-4.55, 4.31 ± 0.24; F4w 1.25-1.48, 1.36 ± 0.12; P4 1.94-1.97, 1.96 ± 0.01; Ti4 2.64-2.98, 2.81 ± 0.17; Mt4 2.62-2.81, 2.71 ± 0.1; Tr4 1.47-1.57, 1.52 ± 0.05; TSp 0-3, 1.5 ± 1.5; TSpv 0-0, 0 ± 0; TSr 0-0, 0 ± 0; TSrv 15-19, 17 ± 2; PTl 2.38-2.72, 2.55 ± 0.17; PTw 0.89-0.97, 0.93 ± 0.04; BL 1.72-1.84, 1.78 ± 0.06.

Females.

Unknown.

Material examined.

United States: Florida: Alachua Co: 36 mi W Melrose , 29.7135 -82.1526 7, 42 m a.s.l. (UMM0532, 13.vi.1962, 1♂, JA Beatty, AMNH) ; Georgia: Charlton Co: Billy’s Island, Okefenokee Swamp , 30.8056 -82.3371 5, 36 m a.s.l. (UMM0163, 17.v.1921, 1♂, AMNH) .

Figures

Map 3. Locality records for eastern United States species.

Figure 14. Ummidia okefenokee sp. nov. male holotype specimen (UMM 163) from Okefenokee Swamp, Charlton Co., Georgia. A retrolateral aspect, leg I B prolateral aspect, leg I C line drawings, leg I retrolateral and prolateral aspects D retrolateral aspect, pedipalp E habitus illustration. Scale bars: 1.0 mm (A-D), 4.0 mm (E).