Ummidia tunapuna, 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 tunapuna sp. nov. Fig. 71 , Map 6

Type material.

HOLOTYPE 1: ♀ (UMM724, AMNH) from Tunapuna near Pax Guest House, St. George, Trinidad and Tobago, 10.6638 -61.3950 4, 179 m a.s.l., 28-29.vi.1999, coll. P Miller, W Miller, G Stratton, B Suter, V Suter, AMNH.

Etymology.

The specific epithet is a noun taken in apposition and is in reference to the type locality, Tunapuna.

Diagnosis.

Ummidia tunapuna females can be differentiated from all other geographically proximate species by the presence of a setal fringe on the lateral and posterior margins of the carapace and by having spermathecal stalks relatively straight with a slight medial bend distally and bulbs facing anteromedially. Females can be further distinguished from U. erema , U. tibacuy , U. asperula , and U. neblina by the presence of a distinct comb of long spinules only on the retrolateral face of tarsus IV.

Description of female holotype.

Specimen preparation and condition. Specimen preserved in 80% EtOH. Spermathecae removed, cleared, in vial with specimen. General coloration. Carapace strong brown 7.5YR 3/4, chelicerae and legs dark reddish brown 5YR 3/4. Abdomen very dark brown 7.5YR 2.5/2, spinnerets dark yellowish brown 10YR 4/6. Cephalothorax. Carapace 7.89 long, 7.72 wide. Pars cephalica 5.4 long. Foveal groove procurved, 0.58 long, 2.04 wide. Eye tubercle low. AER procurved. PER slightly recurved. Eye group 1.1 long, 1.93 wide, AME 0.41, PME 0.34, ALE 0.67, PLE 0.46. Sternum sparsely setose around outer edges, thicker anteriorly, STRl 4.93, STRw 5.02. Chelicerae with anterior row comprising seven teeth, posterior margin with seven teeth. Palpal endites with 22 cuspules spread across proximal half of endite and 54 cuspules distally, equal in size to proximal cuspules anteriorly, smaller posteriorly, ENDw 1.99, ENDl 3.09. Labium with five cuspules, LBw 1.89, LBl 1.47. Rastellum with very many strong spines on process and along margin continuing up cheliceral face ~ 3 ' length of rastellar process. Abdomen. Evenly setose with pale speckles concentrated into patches at apodemes. Legs. F1 5.01; F1w 1.64; P1 3.26; Ti1 3.08; Mt1 2.28; Tr1 1.34; F3 4.04; F3w 2.22; P3 2.8; Ti3 2.34, Sd3 1.58; Mt3 2.02; Tr3 2.11; F4 4.96; F4w 2.19; P4 2.77; Ti4 3.11; Mt4 3.03; Tr4 1.67. Retrolateral face tarsus IV with defined comb over 2/3 of article. Pedipalps. PF 4.48, PP 2.61, PTi 2.88, PTr 2.73. Spermathecae simple on relatively long, weak stalks, bulbs facing anteromedially.

Variation, females.

Known only from female holotype.

Males.

Unknown.

Figures

Map 6. Locality records for South American and Caribbean species.

Figure 71. Ummidia tunapuna sp. nov. female holotype (UMM 724) from St. George, Trinidad and Tobago A female habitus illustration, scale bar = 4.0 mm B cleared spermathecae, scale bar = 1.0 mm. Scale bars: 4.0 mm (A), 1.0 mm (B).