Ummidia colemanae, 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 colemanae sp. nov. Fig. 20 , Map 3

Type material.

HOLOTYPE: 1 ♂ (UMM504) from 8 miles NE Sinton, San Patricio County, Texas, 28.0852 -97.2647 1, 2 m a.s.l., 28.iv.1960, coll. HE Laughlin, AMNH.

Etymology.

The specific epithet is a patronym named in honor of Texas native Bessie Coleman (1892-1926), the first African American and Native American woman to obtain her pilot’s license.

Diagnosis.

Ummidia colemanae is an extremely small species found in southern Texas. Males can be differentiated from U. rongodwini by the absence a pale dorsal heart patch and from U. audouini and U. rosillos by lacking a brush on the retrolateral face of tarsus IV. Comb on prolateral face of tarsus IV is more distinct than that of U. beatula , U. mercedesburnsae , and U. macarthuri . Males disperse from April to June.

Description of male holotype.

Specimen preparation and condition. Specimen preserved in 80% EtOH. Left palp, leg I removed, in vial with specimen. Left leg II missing. General coloration. Carapace and chelicerae dark red 2.5YR 3/6, leg dark yellowish brown 10YR 4/6. Abdomen dark reddish gray 2.5YR 3/1. Cephalothorax. Carapace 2.73 long, 2.56 wide. Pars cephalica 1.76 long. Foveal groove procurved, 0.16 long, 0.43 wide. All eyes on dark, high tubercle. AER procurved. PER straight. Eye group 0.38 long, 0.73 wide, AME 0.19, PME 0.17, ALE 0.22, PLE 0.15. Sternum sparsely setose around outer 1/3, thicker anteriorly, STRl 1.61, STRw 1.5. Chelicerae with anterior tooth row comprising two teeth, posterior margin with four teeth. Palpal endites with 13 cuspules spread over proximal half of endite face, lacking distal endite cuspules, ENDw 0.63, ENDl 1.07. Labium with three cuspules, LBw 0.58, LBl 0.37. Rastellum with many spines on process. Abdomen setose with pale speckles concentrated into faint chevrons at apodemes. Legs. F1 2.73; F1w 0.54; P1 1.28; Ti1 1.78; Mt1 1.23; Tr1 0.72; F3 1.84; F3w 0.74; P3 0.93; Ti3 1.02; Sd3 0.53; Mt3 1.05; Tr3 0.81; F4 2.54; F4w 0.71; P4 1.11; Ti4 1.64; Mt4 1.75; Tr4 0.93. Retrolateral face of tarsus IV with defined comb over length of tarsus. Leg I spination pattern: TSp 2, TSpv 4, TSrd 0, TSr 0, TSrv 18, MtSp 6, MtSr 8, TrSp 2, TrSr 5. Pedipalps. PTl 1.8, PTw 0.65, Bl 1.4. Embolus evenly curved.

Females.

Unknown.

Figures

Map 3. Locality records for eastern United States species.

Figure 20. Ummidia colemanae sp. nov. male holotype specimen (UMM 504) from Sinton, Texas A habitus illustration B prolateral aspect, leg I C retrolateral aspect, leg I D line drawings, leg I prolateral and retrolateral aspects E retrolateral aspect, pedipalp. Scale bars: 4.0 mm (A), 1.0 mm (B-E).