Ummidia paulacushingae, 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 paulacushingae sp. nov. Fig. 26 , Map 4

Type material.

HOLOTYPE: 1 ♂ (DMNS_ZA40253) from Grand Junction, Mesa County, Colorado, United States 39.0636 -108.5518 6, 1399 m a.s.l., 14.ix.2009, RW Hammon, DMNS.

Etymology.

The specific epithet is a patronym in honor of arachnologist Dr. Paula Cushing who is also the curator of arachnids for the Denver Museum of Natural History and first female president of the American Arachnological Society. The second author is generally afraid of her.

Diagnosis.

Ummidia paulacushingae can be differentiated from U. rosillos by the lack of a pale dorsal heart patch and brush on the retrolateral face of tarsus IV. Males can be differentiated from U. rosillos , U. modesta , U. timcotai , U. gabrieli , and U. rodeo by having an embolus with an even curve and from U. mercedesburnsae by having relatively more spines on the retrolateral face of tibia I. Males can also be differentiated from all other geographically proximal species except U. gertschi by having a distinct comb comprising close set heavy setae on the retrolateral face of tarsus IV.

Description of male holotype.

Specimen preparation and condition. Specimen preserved in 80% EtOH. Right leg II removed, in vial with specimen. General coloration. Carapace, chelicerae, and legs black 5YR 2.5/1. Abdomen reddish black 2.5YR 2.5/1. Cephalothorax. Carapace 7.35 long, 7.13 wide. Pars cephalica 4.94 long. Foveal groove procurved, 0.49 long, 1.62 wide. Tubercle moderate with all eyes on tubercle. AER procurved. PER straight. Eye group 0.92 long, 1.64 wide, AME 0.33, PME 0.29, ALE 0.53, PLE 0.24. Sternum sparsely setose around outer 1/3, thicker anteriorly, STRl 4.32, STRw 4.42. Chelicerae with anterior tooth row comprising seven teeth, posterior margin with four teeth. Palpal endites with 33 cuspules spread over proximal half of endite face, lacking distal endite cuspules, ENDw 1.71, ENDl 2.96. Labium with 13 cuspules, LBw 1.56, LBl 1.08. Rastellum with many spines. Abdomen setose. Legs. F1 6.61; F1w 1.86; P1 3.33; Ti1 4.03; Mt1 3; Tr1 1.31; F3 4.77; F3w 2.02; P3 2.55; Ti3 3; Sd3 2.06; Mt3 3.17; Tr3 1.95; F4 6.27; F4w 1.93; P4 2.95; Ti4 3.86; Mt4 4.21; Tr4 2.14. Retrolateral face of tarsus IV with defined comb over proximal half of tarsus and paired spinules distally. Leg I spination pattern: TSp 6, TSpv 7, TSrd 0, TSr 2, TSrv 24, MtSp 5, MtSr 12, TrSp 5, TrSr 13. Pedipalps. PTl 3.52, PTw 1.51, Bl 3.27. Embolus evenly curved.

Variation, males

(n = 2). CL 6.69-7.35, 7.02 ± 0.33; CW 6.63-7.13, 6.88 ± 0.25; Cap 4.35-4.94, 4.64 ± 0.3; ENDl 0.89-0.92, 0.91 ± 0.01; ENDw 1.49-1.64, 1.56 ± 0.07; STRl 3.73-4.32, 4.03 ± 0.29; STRw 4.01-4.42, 4.21 ± 0.2; LBl 1.03-1.08, 1.05 ± 0.03; LBw 1.56-1.58, 1.57 ± 0.01; F1 6.54-6.61, 6.57 ± 0.04; F1w 1.68-1.86, 1.77 ± 0.09; P1 3.12-3.33, 3.22 ± 0.11; Ti1 4.03-4.2, 4.11 ± 0.09; Mt1 3-3.2, 3.1 ± 0.1; Tr1 1.29-1.31, 1.3 ± 0.01; F3 4.66-4.77, 4.72 ± 0.06; F3w 1.85-2.02, 1.94 ± 0.08; P3 2.38-2.55, 2.46 ± 0.08; Ti3 2.81-3, 2.9 ± 0.1; Mt3 2.82-3.17, 2.99 ± 0.17; Tr3 1.84-1.95, 1.89 ± 0.06; TSp 0-6, 3 ± 3; TSpv 5-7, 6 ± 1; TSr 0-2, 1 ± 1; TSrv 12-24, 18 ± 6; PTl 3.52-3.54, 3.53 ± 0.01; PTw 1.39-1.51, 1.45 ± 0.06; BL 3.03-3.27, 3.15 ± 0.12.

Females.

Unknown.

Material examined.

United States: Colorado: Delta Co: F Street, Crawford , 38.7058 -107.611, 2000 m a.s.l. (DMNS_ZA37484, 17.x.2001, 1♂, B McCullaugh, DMNS) ; Mesa Co: Grand Junction , 39.0636 -108.5518 6, 1399 m a.s.l. (DMNS_ZA40253, 14.ix.2009, 1♂, RW Hammon, DMNS) .

Figures

Map 4. Locality records for western United States and northern Mexico species.

Figure 26. Ummidia paulacushingae sp. nov. male holotype specimen (CMNS 40253) from Mesa Co., Colorado 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).