MINISTERIO DE AMBIENTE Y ESPACIO PÚBLICO

(Figs. 45 -- 51)

Types: A. sequens -- Male holotype from NEVADA, Nye Co., Mecury (Nevada Test Site)

Northwest of Las Vegas, collected November 1960 by BYU/AEC (USNM). Georeferenced coordinates: Latitude 36.6588°, Longitude -115.9998°. Holotype examined.

A. nevadae – Male holotype from NEVADA, Nye Co., Mecury (Nevada Test Site)

Northwest of Las Vegas, collected October to December 1960 by BYU/AEC (USNM). Georeferenced coordinates: Latitude 36.6588°, Longitude -115.9998°. Holotype examined.

Diagnosis: Posterior gonopod short with spoon-shaped telopodite distal end with free

inner-piece rectangular in shape with rounded corners terminating at the bottom margin of the spoon-shaped end. Similar to A. nogalanus, but shorter and the free inner piece on

A. nogalanus more distal beginning and terminating within the margins of the spoon

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Description: Color in alcohol dark gray mottled with light gray and brown. Yellowish

margins to pleurotergites. Collum corner an acute angle, front margin uniformly narrow from posterior margin to the terminus of the submarginal anterior groove approximately mid-way through the ocellarium. Front margin widens slightly towards the terminus of the sulcus. Posterior margin more or less straight with a slight curvature. Leg pairs 1 and 2 incrassate. Coxal lobes on leg pair 3 expanded mesally forming a right-triangle shape. Leg pair 4 coxal lobes more rounded and laterally expanded. Coxal lobes on leg pairs 5, 6 and 7 wider and flatter than on leg pairs 3 or 4. Anterior gonopods with the characters of the genus. Posterior gonopod short with spoon-shaped telopodite distal end with free inner-piece rectangular in shape with rounded corners terminating at the bottom margin of the spoon-shaped end.

Remarks: Chamberlin described A. sequens and A. nevadae from a large collection of

specimens by Brigham Young University and the Atomic Energy Commission collected from the Nevada Test Site near Mercury, Nevada. Chamberlin gave no details as to the difference between the 2 species and drawings were so diagrammatic to be of little value. Examination of the types as well as the remainder of the collection indicate there is but one species in the area as the gonopod morphology is identical. The entire collection has been relocated from BYU to the USNM. One other species from the Nevada Test Site,

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Additional Records: CALIFORNIA: Inyo Co., SE Owens Lake, 5.5 mi SSE Keeler, 12

January 1996 by D. Giuliani (UCR); CALIFORNIA: Inyo Co., Paxton Sand Dunes, 13 mi N, 1 mi E Ridgecrest, 11 October 1982 by D. Giuliani (EMEC); CALIFORNIA: Inyo

Co., Saline Valley Grapevine Canyon Road Station 42, 2 April 1960 by B. Banta (CAS);

CALIFORNIA: San Bernardino Co., 17 km N Kelso, 2 January 1992 by W.E. Steiner & J.M Swearingen (USNM); CALIFORNIA: San Bernardino Co., Pisgah Crater, Sta. 71, 7 April 1962 by Norris & Heath (LACM); CALIFORNIA: San Bernardino Co., 9 mi N & 10 mi E of Ridgecrest, sand dunes, 15 February 1981 by D. Giuliani (CAS); NEVADA:

Clark Co., 30 KM SE Indian Springs, 2 December 1994 by W.E. Steiner & J.M

Swearingen (USNM); NEVADA: Nye Co., Mercury NTS, 11 December 1961 by BYU/AEC (NCSM); NEVADA: Nye Co., Mercury, NTS, on multiple dates between October 1960 and December 1969 by BYU/AEC (USNM); NEVADA: Nye Co., NTS: Area 22 Along Jackass Flats Rd., 18 August 1976 by W.K. Irwin (FSCA); UTAH:

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Figure 46. Pregonopodal leg morphology A. sequens Figure 45. Collum morphology A. sequens

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Figure 47. Cephalic view anterior gonopod A. sequens

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Figure 49. Caudal view of posterior gonopod A. sequens

Figure 50. Cephalic view of posterior gonopod A. sequens

Figure 51. Lateral view of posterior gonopod A. sequens

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93 Arinolus sequoiaensis, n. sp.

(Figs. 53 – 60)

Type: Male holotype from 2 mi N Hospital Rock Camp Ground Sequoia NP, Tulare Co.,

CALIFORNIA, United States, collected on 12 February 1967 by J.S. Buckett & M.R. Gardner (UCD). Georeferenced coordinates: 36.532099°, -118.77378°. Primary key: 3601.

Diagnosis: Similar to A. anahiae and A. shelleyi, which both have blade-like posterior

gonopod telopodites with a twist along the long axis. The distal end of the telopodite of A.

sequoiaensis is narrow and rounded. The distal end of the telopodite of A. anahiae is a

broad, inverted triangle shape. A. sequoiaensis telopodite narrower than A. shelleyi and with a rounded mesal curve at approximately 2/3 the length of the telopodite. A. shelleyi mesal curve much sharper at approximately a right angle at approximately ¾ of the length of the telopodite. The telopodite of A. shelleyi is emarginate along the outside margin at approximately 1/3 the length. The degree of twist in the telopodite is less in A.

sequoiaensis than A. shelleyi.

Etymology. The name is a Latinized adjective: of the type locality at Sequoia National

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Description: Male holotype about 39 mm long, 3.49 mm wide at the collum, 4.01 mm

wide at segment 6/7, 3.47 mm wide at the epiproct with 47 rings. Ocelli: 28/28 (right/left) in a rounded patch. Color in alcohol is light reddish-brown mottled with dark reddish- brown and reddish yellow posterior margins to the pleurotergites. Collum: Front margin broad at corner and narrowing as it rises, widening near the bottom margin of the ocellarium until the submarginal anterior grooveterminates. Posterior margin of corner more or less straight with a slight curve. Surface smooth. . Pre-gonopodal legs: leg pairs 1 and 2 incrassate. Coxae of leg pair 3 elongated ventrocaudally and triangular in shape, not extending past leg pair 4. Coxae of leg pairs 4, 5, 6 and 7 flattened and triangular in shape with rounded ends. Anterior gonopods with characters of the genus. Posterior gonopod telopodite long and blade-like with a twist along the long axis with a rounded mesal curve at approximately 2/3 the length. Telopodite distal end narrow and rounded. Outside margin more or less straight.

Additional Records: CALIFORNIA: Tulare Co., Kaweah Cave, J. Krejca, P. Sprouse,

S. Fryer, D. Ubick, P. Paquin, W. Savary, 28 April 2004 (NCSM); CALIFORNIA:

Tulare Co., 3 mi E Three Rivers, Kaweah Power House #3, R.M. Shelley, N.J. Smith,

R.D. Haines, 22 April 1991 (NCSM); CALIFORNIA: Tulare Co., Sequoia National Park, Unknown Collector, 22 February 1967 (FSCA); CALIFORNIA: Tulare Co., 8.7 mi

above Park Hdq. 12 N Hammond, Sequoia Natl Park, D. Tiemann, 2 March 1965 (FSCA); CALIFORNIA: Tulare Co., Junct of Hot Springs & Sugarloaf Roads, D.L. Tiemann, 21 February 1965 (FSCA); CALIFORNIA: Tuolumne Co., 4 mi NNW Columbia, J. Reddell, 30 March 1979 (TMM); CALIFORNIA: Tuolumne Co., 5 mi W Oakdale, J.S. Buckett &

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M.R. Gardner, 1 December 1967 (UCD); CALIFORNIA: Mariposa Co., 2 mi E Briceburg, J.S. Buckett & M.R. Gardner, 2 December 1967 (UCD). (Fig. 60).

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Figure 54. Pregonopodal leg morphology A. sequoiaensis Figure 53. Collum morphology A. sequoiaensis

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Figure 55. Cephalic view anterior gonopod A. sequoiaensis

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Figure 57. Caudal view of posterior gonopod A. sequoiaensis

Figure 59. Lateral view of posterior gonopod A. sequoiaensis

Figure 58. Cephalic view of posterior gonopod A. sequoiaensis

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100 Arinolus shelleyi, n. sp.

(Figs. 61 – 67)

Type: Male holotype from CA Hwy 63, ca. 1 mi S CA 180, Fresno Co., CALIFORNIA,

United States, collected on 22 April 1991 by R.M. Shelley, N.J. Smith. NCSM. Georeferenced coordinates: 36.716999°, -119.285747°. Primary key: 1047

Diagnosis: Similar to A. anahiae and A. sequoiaensis which both have blade-like

posterior gonopod telopodites with a twist along the long axis. A. shelleyi differs from A.

anahiae in the distal end of the telopodite, which is rounded. A. anahiae telopodite distal

end is a broad, inverted triangle shape. A. shelleyi differs from A. sequoiaensis with a broad telopodite with a sharp, approximately right angle curve at approximately ¾ of the length and an emarginate outside margin at approximately 1/3 the length. A. sequoiaensis telopodite narrow with a rounded curve at approximately 2/3 of the length and a more or less straight outside margin.

Etymology. The name is a noun in the genitive case. This species is named in honor of

the first collector and fellow field researcher, Rowland Shelley.

Description: Male holotype about 52 mm long, 4.75 mm wide at the collum, 4.83 mm

wide at segment 6/7, 4.6 mm wide at the epiproct with 47 rings. Ocelli: 29/29 (right/left) in a rounded patch. Color in alcohol reddish-gray mottled with light reddish-yellow.

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Posterior margins of pleurotergites reddish-yellow. Collum: Front margin broad at corner and narrowing as it rises, widening near the bottom margin of the ocellarium until the submarginal anterior grooveterminates. Submarginal anterior grooveterminates near the bottom margin of the ocellarium. Posterior margin of corner more or less straight with at least one faint striae. Pre-gonopodal legs: leg pairs 1 and 2 slightly incrassate. Coxae of leg pair 3 elongated caudally and curved, extending past leg pair 5. Coxae of leg pairs 4, 5, 6 and 7 flattened and triangular in shape. Anterior gonopods with characters of the genus. Posterior gonopod telopodite broad, blade-like with a twist along the long axis, a sharp, approximately right angle curve at approximately ¾ of the length, and an

emarginate outside margin at approximately 1/3 the length.

Additional Records: CALIFORNIA: Fresno Co., Bass Lake, D. Tieman, 20 February

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Figure 62. Pregonopodal leg morphology A. shelleyi Figure 61. Collum morphology A. shelleyi

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Figure 63. Cephalic view anterior gonopod A. shelleyi

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Figure 65. Caudal view posterior gonopod A. shelleyi

Figure 67. Lateral view posterior gonopod A. shelleyi

Figure 66. Cephalic view posterior gonopod A. shelleyi

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106 Arinolus torynophor Chamberlin 1940

A. torynophor Chamberlin 1940 p. 81, figs A-B, p. 82.