Eremocosta striata ( Putnam 1883 ),

Cushing, Paula E., Channiago, Felix & Brookhart, Jack O., 2018, Revision of the camel spider genus Eremocosta Roewer and a description of the female Eremocosta gigas Roewer (Arachnida, Solifugae), Zootaxa 4402 (3), pp. 443-466: 459-460

publication ID

https://doi.org/10.11646/zootaxa.4402.3.2

publication LSID

lsid:zoobank.org:pub:50282593-0195-4899-980F-493E062B71B0

persistent identifier

http://treatment.plazi.org/id/03CE2E66-542B-FFD9-FF0C-FCBEFEED04B5

treatment provided by

Plazi

scientific name

Eremocosta striata ( Putnam 1883 )
status

 

Eremocosta striata ( Putnam 1883) 

Figs. 1FView FIGURE 1, 2S –VView FIGURE 2, 3FView FIGURE 3, 4EView FIGURE 4, 5GView FIGURE 5

Datames striatus Putnam1883: 255  –257.

Datames cinerea Putnam1883: 260  –261.

Eremobates cinereus ( Putnam 1883)  : Kraepelin 1901: 124. Eremorhax striatus ( Putnam 1883)  : Muma 1951: 45 –47, figs. 26–31. Eremopus striatus ( Putnam 1883)  : Muma & Muma 1988: 10 –11, fig. 2. Eremocosta striata ( Putnam 1883)  : Harvey 2002: 451.

Type material. Datames striatus  : Female holotype from Camp Grant, Arizona  , USA ( BNHM). Datames cinerea  : Type locality of male holotype unknown (Academy of Natural Sciences, Philadelphia, Pennsylvania, USA). We did not examine the female holotype  .

Specimens examined. Males (8). USA: Arizona, Graham County, 6 miles south of San Carlos, San Carlos Reservoir, N 33.24996°, W 110.44431°, 805 m elev., 5 August 1974, coll. Martin H. Muma (2 males: DMNS ZA.16329); USA: Arizona, Santa Cruz County , E. of Amado along Hopkins Mountain Rd GoogleMaps  ., between the 2–5 Km signs, N 31.714°, W 111.009°, 1011 m elev., 30 July 2008, coll. Joe Warfel ( DMNS ZA.21079); USA: Arizona, Santa Cruz County, Hopkins Mountain Rd GoogleMaps  ., toward Whipple Observatory, N 31.67222°, W 110.90528°, 1753 m elev., 28 July 2009, coll. Joe Warfel, on roadway ( DMNS ZA.25446); USA: Arizona, Santa Cruz County, Hopkins Mountain Rd GoogleMaps  ., N 31.46139°, W 111.00417°, 1112 m elev., 28 July 2009, coll. Joe Warfel, on roadway at 21:28 hrs ( DMNS ZA.25453); USA: Arizona, Pima County, 10 miles E Continental, 3 miles N Madera Canyon, 14–15 July 1989, K. Ribardo (2 males: CAS Casent 9033604).GoogleMaps 

Females (2). USA: Arizona, Santa Cruz County, Esplendor Resort , 1069 Camino Caralampi , Rio Rico , N 31.46194°, W 110.99746°, 1063 m elev., July 2009, coll. Lou Perrotti, caught in room ( DMNS ZA.25451)GoogleMaps  ; MÉXICO: Sonora, 73.9 miles N. of Hermosillo , 5 August 1968, coll. T. Briggs ( CAS Casent-9033697). 

Diagnosis. The shape of the male chelicera with its slightly rounded fondal notch, a tiny MM, and a flattened ridge-like MD distinguishes this species from all other Eremocosta  . Only E. gigasella  has a ridge-like structure positionally homologous to the sharper distal ridge that might be a modified MD (see Figs. 2S & OView FIGURE 2, arrows). Eremocosta gigas  has a distinctive MD tooth at that same position on the movable finger ( Fig. 2KView FIGURE 2, arrow). The genital operculum of E. striata  is most similar to that of E. calexicensis  ; however, the curved distal portions of the genital wings are more rounded than those of E. calexicensis  (compare Figs. 4E & BView FIGURE 4).

Measurements. Males (n = 8). TL 31.0–50.0; CL 9.0–16.0; CH 3.4–5.6; FNL 0.3–2.0; FNH 0.4–0.9; FFH 1.0–1.6; PL 25.0–40.5; PT 7.0–8.0; PMT 1.7–3.0; LI 20.5–31.0; LIV 27.0–43.0; PPL 5.0–7.9; A/CP 4.3–5.6; FNL/ FNH 0.5–2.5; FFH/FNH 1.3–2.3; FFH/ CH 0.2–0.5.

Measurements. Females (n = 2). TL 34.5, 50.0; CL 9.0, 17.5; CH 4.0, 5.5; PL 22.0, 35.0; PT 7.5, 7.7; PMT 2.0, 2.9; LI 19.5, 26.0; LIV 34.5, 35.0; PPL 3.9, 4.0; A/CP 3.9, 4.0.

Description. Coloration. Male. Overall dusky yellow body and appendages; legs dusky violet-brown at tibiafemur joint. Propeltidium reticulate violet-brown with a longitudinal lighter stripe the width of the eye tubercle ( Fig. 5GView FIGURE 5). Abdomen dark dorsally and lighter ventrally.

Chelicera. Male. VDC apical, oriented prolaterally, narrow, with thin carina ( Fig. 1FView FIGURE 1, arrow). Fixed finger broad at the base narrowing at the apical third of the length in retrolateral view with no median dentition. Movable finger: prominent MP-two tiny MSM (some specimens with just one)-either a very small, but distinct, MM or just a slight ridge at that location (difficult to see in Fig. 2SView FIGURE 2)-a long ridge-like MD; distinct MPL ( Figs. 2S & TView FIGURE 2). Fondal notch seemingly curved and distinct ( Figs. 2S & TView FIGURE 2). Two tiny RFA; fondal teeth graded I, III, II, IV retrolaterally and I, II, III, IV prolaterally ( Fig. 3FView FIGURE 3).

Setation. Male. Typical.

Coloration. Female. Coloration as in the males but sometimes markings are less distinct.

Chelicera. Female. Fixed finger: large FP-2 small FSM-FM-2 small FSD-smaller FD. Movable finger: large MP-two small MSM-medium MM; smaller but distinct MPL ( Figs. 2U & VView FIGURE 2). Two RFA, proximal tiny; fondal teeth graded as in the male.

Setation. Female. Typical.

Genital operculum. Muma’s illustration is accurate (1951, fig. 31, p. 46). Thin anterior arms; relatively large posterior wings ( Fig. 4EView FIGURE 4).

Distribution. USA Arizona. MÉXICO: Sonora. Biome: Sonoran Desert.

Discussion. Eremocosta striata  is a large species that can be seen by vehicle headlights scurrying across a road (pers. obs, JB). It seems to occupy the Sonoran region east of the Colorado River in Arizona and the state of Sonora, México.

BNHM

Bombay Natural History Museum

DMNS

Denver Museum of Nature and Science

CAS

California Academy of Sciences

LIV

World Museum Liverpool

PPL

Agricultural Development and Advisory Service

MSM

Marine Science Museum, Tokai Univ.

MPL

Musee de Port Louis

RFA

Universidade Federal do Rio de Janeiro

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Solifugae

Family

Eremobatidae

Genus

Eremocosta

Loc

Eremocosta striata ( Putnam 1883 )

Cushing, Paula E., Channiago, Felix & Brookhart, Jack O. 2018
2018
Loc

Datames striatus

Putnam1883 : 255
Loc

Datames cinerea

Putnam1883 : 260
Loc

Eremobates cinereus (

Kraepelin 1901 : 124
Muma 1951 : 45
Muma & Muma 1988 : 10
Harvey 2002 : 451