Pimoa mono Hormiga 1994

Pimoa mono

TYPES.—Female holotype and three females paratypes from Meander Cave, Twin Lakes, near Mono Hot Springs, Mono Co., California; 3 Sep 1972, A. Jung, B. Lem, and T. Briggs col. Holotype deposited in CAS, paratypes deposited in DU.

ETYMOLOGY.—The species epithet is a noun in apposition taken from the county name of the type locality.

DIAGNOSIS.—It can be distinguished from its sister species hespera by the rounded end of the epigynum and the small distance between the copulatory openings (Figures 152, 153).

Male: Unknown.

Female (holotype): Cephalothorax 5.0 long, 3.5 wide, 2.5 high; brown. Sternum 2.8 long, 2.1 wide; dark brown. Abdomen 6.0 long, 4.0 wide, 4.7 high; whitish with a dark gray pattern. AME diameter 0.20. PME 1.00, PLE 1.00, ALE 1.00 times one AME diameter. AME separation 0.90 times their diameter, PME separation 0.90 times their diameter. PME-PLE separation 1.20 times one PME diameter. AME-ALE separation 0.90 times one ALE diameter. Clypeus height 3.00 times one AME diameter. Chelicerae with three prolateral and two retrolateral teeth. Cheliceral stridulating files scale-like and inconspicuous. Legs dark reddish brown. Leg and pedipalp lengths of female described above:

Legs 1243. Femur I 2.18 times length of cephalothorax. Legs (particularly I and II) covered with long setae. Metatarsus I trichobothrium 0.88. Epigynum as in Figures 90, 147, 153.

VARIATION.—Female cephalothorax ranges in length from 4.2 to 5.0.

ADDITIONAL MATERIAL EXAMINED.—None.

DISTRIBUTION.—Known only from the type locality in eastern California (Figure 117).

Pimoa haden Chamberlin and Ivie

Pimoa haden Chamberlin and Ivie. 1943:10, figs. 13, 14 [, ].—Brignoli, 1975:13; 1983:231.—Crawford, 1988:23.—Roth. 1988:45.

TYPES.—Male holotype and female paratype, labels state “Pimoa haden Chamberlin and Ivie Idaho: Hayden Lake HOLOTYPE ALLOTYPE” and “Hayden Lake Ida. Lot 34.70.” Deposited in AMNH. Examined.

DIAGNOSIS.—Male with distal end of the PEP rolled (Figure 99) and five to six retrolateral trichobothria in the palpal tibia, which also has dorsal conical apophysis. Very similar to its sister species jellisoni, but can be distinguished from it because haden has thicker pedipalpal femur which bears a group of spines in its ectal side (Figure 159). Females of haden and jellisoni are difficult to tell apart when their respective males are not available. The epigynum of haden (Figures 161–163) is projected more perpendicularly to the abdominal wall than in jellisoni, which has it more parallel to the abdomen.

Male (from Cedar Lake, Washington): Total length 7.9. Cephalothorax 4.0 long, 3.0 wide, 2.1 high; red-brown, slightly darker at margins. Sternum 2.3 long, 1.8 wide; dark brown. Abdomen 3.9 long, 2.6 wide, 4.7 high whitish with a dark gray pattern (Figure 158). AME diameter 0.22; whitish with a dark gray pattern. PME 0.58. PLE 0.73, ALE 0.91 times one AME diameter. AME separation 0.45 times their diameter. PME separation 1.00 times their diameter. PME-PLE separation 1.00 times one PME diameter, AME-ALE separation 0.44 times one ALE diameter. Clypeus height 2.27 times one AME diameter. Chelicerae with three prolateral and two retrolateral teeth. Cheliceral stridulating files present and conspicuous. Legs red brown, without annuli. Leg and pedipalp lengths of male described above:

Legs 1243. Femur I 2.40 times length of cephalothorax. Legs covered with long setae. Metatarsus I trichobothrium 0.87. Pedipalp as in Figures 156–159, 170–175.

Female (same locality than male): Total length 7.4. Cephalothorax 3.4 long, 2.6 wide, 2.0 high; brown, slightly darker at margins. Sternum 2.1 long, 2.0 wide; dark brown. Abdomen 3.7 long, 2.9 wide, 4.2 high; whitish with a dark gray pattern (Figures 164, 165). AME diameter 0.20. PME 0.75, PLE 0.85, ALE 0.90 times one AME diameter. AME separation 0.50 times their diameter, PME separation 1.00 times their diameter. PME-PLE separation 1.00 times one PME diameter, AME-ALE separation 0.56 times one ALE diameter. Clypeus height 1.90 times one AME diameter. Chelicerae with three prolateral and two retrolateral teeth. Cheliceral stridulating files absent. Legs brown, without annuli. Leg and pedipalp lengths of female described above:

Legs 1243. Femur I 1.85 times length of cephalothorax. Legs covered with long setae. Metatarsus I trichobothrium 0.89. Epigynum as in Figures 161–163, 166–168, 176.

VARIATION.—Male cephalothorax ranges in length from 3.0 to 4.0, female from 2.2 to 4.6. The number of tibial retrolateral trichobothria of the male palp varies between five and six. Variation in cheliceral striae in two different males can be seen in Figures 181, 182, 184, 185. Some females show subtle cheliceral striae (Figures 180, 183).

ADDITIONAL MATERIAL EXAMINED.—CANADA: BRITISH COLUMBIA: Staglcap Park (49°05′N, 117°02′W), 24 Dec 1980, on snow, 5000 ft (I. Askevold, CNC), 1. UNITED STATES: IDAHO: Clearwater Co.: Pierce (46°30′N, 115°47′W), 29 Aug 1959 (W.J. Gertsch. V. Roth. AMNH), 1, 7, Kootenai Co.: Coeur d'Alene, Aug 1949 (Mulaik, AMNH), 1. Shoshone Co.: Wallace, 3 Sep 1949 (S. Mulaik, AMNH), 2. MONTANA: Sanders Co.: Thompson Falls, 26–30 Jun 1950 (B. Malkin, AMNH), 1. WASHINGTON: Pend Oreille Co.: Crawford State Park (48.995°N, 117.370°W), 21 Oct 1980, web on outside of building, 2680 ft (R. Crawford, UW), 1; Middle Br. Leclerc Cr. (48.595–597°N, 117.266°W), 9 Jun 1986, under log bark, 2840 ft (R. Crawford, UW), 1. Stevens Co.: Cedar Lake (48°55′N, 117°36′W), 30 sep 1964 (J. and W. Ivie, AMNH), 1, 8; Cedar Lake, N of Lead Point (48°56′N, 117°36′W), 27 Jul 1968 (W. Ivie, AMNH), 3; Cedar Lake, N of Lead Point (48°56′N, 117°36′W), Apr to Jun 1968 (H. Cusic, AMNH), 1; Cedar Lake, N of Lead Point (48°55′N, 117°35′W), May 1962 (W. Ivie, AMNH), 1, 17; Cedar Lake, N of Lead Point (48°55′N, 117°35′W), May 1968 (W, Ivie, AMNH), 7; Cedar Lake, N of Lead Point (48°55′N, 117°35′W), 1–10 Jun 1968 (W. Ivie, AMNH), 1; Cedar Lake (48°55′N, 117°36′W), 10 Sep 1963 (J. and W. Ivie, AMNH), 2, 2.

DISTRIBUTION.—Northern Idaho, northeastern Washington, northwestern Montana, and their bordering region of Canada (Figure 189).

Pimoa jellisoni (Gertsch and Ivie)

Labulla jellisoni Gertsch and Ivie, 1936:18–19, figs. 37–38 [].—Gertsch and Jellison, 1939:4–5.—Bonnet, 1957:2335.

Labulla jelliconi.—Roewer, 1942:577 [lapsus calami].

Labulla ellisoni.—Fage, 1946:387 [lapsus calami].

Pimoa jellisoni.—Chamberlin and Ivie, 1943:10, fig. 12 [].—Brignoli, 1971:163; 1975:13.—Roth, 1988:45.

TYPES.—Female holotype, label states “Labulla jellisoni G and I. Blodgett Canyon, holotype April 21, 1933 Mont. Jellison.” Female paratype “West Fork, Rovalli Co. PARATYPE Mar 11, 1934 Montana W. Jellison.” Deposited in AMNH. Examined.

DIAGNOSIS.—Male very similar to its sister species haden, but can be distinguished by a slimmer palpal femur (Figure 193), which lacks the cluster of spines characteristic of haden. Females are difficult to distinguish from haden in the absence of males. Although the epigynum seems to be quite variable (Figures 195–203) it is usually less protruding (more parallel to the abdominal wall) than in haden.

Male (from Lost Lake, Idaho): Total length 8.6. Cephalothorax 4.0 long, 3.1 wide, 2.0 high; brown, slightly darker at margins. Sternum 2.4 long, 1.9 wide; brown. Abdomen 4.2 long, 3.3 wide, 5.1 high; whitish with dark gray pattern. AME diameter 0.20. PME 0.90, PLE 0.90, ALE 0.90 times one AME diameter. AME separation 0.50 times their diameter, PME separation 0.78 times their diameter. PME-PLE separation 1.11 times one PME diameter, AME-ALE separation 1.11 times one ALE diameter. Clypeus height 2.50 times one AME diameter. Chelicerae with three prolateral and two retrolateral teeth. Cheliceral stridulating files present. Legs red-brown, without annuli. Leg Leg and pedipalp lengths of male described above:

Legs 1243. Femur I 2.70 times length of cephalothorax. Legs covered with long setae. Metatarsus I trichobothrium 0.93. Pedipalp as in Figures 190–193, 210–217.

Female (same locality as male): Total length 8.8. Cephalothorax 4.5 long, 3.4 wide, 2.3 high; brown, slightly darker at margins. Sternum 2.5 long, 1.8 wide; dark brown. Abdomen 4.5 long, 3.3 wide, 3.5 high; whitish with dark gray pattern. AME diameter 0.20. PME 0.90, PLE 0.90, ALE 0.90 times one AME diameter. AME separation 0.70 times their diameter, PME separation 1.00 times their diameter. PME-PLE separation 1.00 times one PME diameter, AME-ALE separation 0.67 times one ALE diameter. Clypeus height 2.40 times one AME diameter. Chelicerae with three prolateral and two retrolateral teeth. Cheliceral stridulating files present, but inconspicuous and ridges scale-like. Legs brown, without annuli. Leg and pedipalp lengths of female described above:

Legs 1243. Femur I 1.78 times length of cephalothorax. Legs covered with long setae. Metatarsus I trichobothrium 0.88. Epigynum as in Figures 195–203, 206–208.

VARIATION.—Male cephalothorax ranges in length from 2.9 to 4.1, female from 3.0 to 4.5. Some specimens have a particularly dark coloration. The morphology of the epigynum is quite variable (Figures 195–203).

ADDITIONAL MATERIAL EXAMINED.—UNITED STATES: IDAHO: Adams Co.: 7 mi (11.2 km) NE of Council (44°48′N, 116°22′W), 5 Aug 1943 (W. Ivie, AMNH), 4, summit 7 mi (11.2 km) NE of Council (44°49′N, 116°24′W), 7 Oct 1944 (W. Ivie, AMNH), 2 Evergreen Camp, Upper Weiser river (44°52′N, 116°22′W), 2 Jul 1943 (W. Ivie, AMNH), 3 6 Aug 1943 (W. Ivie, AMNH), 1, 1 Boise Co.: Lost Lake, below dam (44°N, 116°W), 20 Aug 1936 (W. Ivie, AMNH), 15 7 Aug 1943 (W. Ivie, AMNH), 1 2 Clearwater Co.: Greer (46°24′N, 116°04′W), 30 Aug 1959 (W.J. Gertsch and V. Roth, AMNH), 1 Idaho Co.: Clearwater Creek, nr Kooskia (46°N, 115°W), 23 Aug 1940 (W. Ivie, AMNH), 2 Mud Cr. Jct, 25 Nov 1978, with grylloblattids on snow (AMNH), 2, 2; Latah Co.: Moscow Mts., Moscow, Jun 1936 (C.B. Philips, AMNH), 1 Valley Co.: NE of McCall (44°55′N, 116°04′W), 31 May 1944 (W. Ivie, AMNH), 2, MONTANA: Granite Co.: Rock Creek Rec. Area, Kitchen Gulch, Lolo Natl. Forest, 23 Sep 1950, (V. Roth, AMNH), 3 Ravali Co.: Forest Service, Garbae Pt., East Fork, 24 Jul 1944 (Jellison, AMNH), 1. WASHINGTON: Spokane Co.: Newman Lake, 29 May 1937 (M.H. Hatch, CAS), 1 Spokane Mt., 25 mi (40 km) NE of Spokane, 28 Aug 1959 (V. Roth and WJ. Gertsch, AMNH), 8, 17 Mt. Spokane, 30 May 1937 (M.H. Hatch, CAS), 1.

DISTRIBUTION.—Idaho, northeastern Washington, and western Montana (Figure 189).