Bioacoustics of Califorctenus cacachilensis

Description. Male ( holotype ). Coloration. Carapace brown covered with setae and with scattered dark marks. Chelicerae the same color as the carapace, with numerous long and stiff setae in front face, red condyles and stridulatory file occupy almost the internal face ( Fig. 4B ). Promargin of chelicerae with three teeth, the median almost twice as high as the laterals; retromargin with four similar sized teeth and one, two or none intermarginal denticles present between retrolateral teeth ( Figs. 3E , 4A ). Endites (1.5/2.7) brown, darker on mesal face. Labium (1.3/1.4) dark brown. Sternum (3.6/4.3) dirty yellow with black setae. Legs slightly darker than the carapace but the tarsi dark brown. Opistosoma dirty yellow covered with numerous dorsal, erect black and yellow hyaline setae, venter dark. Spinnerets dirty yellow with dark setae and black setae in their apical part. Habitus: Total length 23.1; carapace length 11.9, width 9.8; clypeus high 0.3. Eyes diameter: AME 0.4, ALE 0.5, PME 0.7, PLE 0.6, AME- AME 0 2, AME-ALE 0.3, PME-PME 0.3, PME-PLE 0.5, AME-PLE 1.0, AME-PME 0.1. MOQ, front width 2.5, back width 3.1. Leg lengths: I-femur 12.5/patella 4.9/tibia13.0/metatarsus11.1/tarsus 5.5/total 47.0; II 11.9/4.8/ 12.3/9.9/4.9/43.8; III 11.1/4.9/8.4/9.2/4.8/38.4; IV 13.8/5.0/12.9/14.6/5.6/51.9. Legs spination: Femur I d1-1-1, p1- 1-1-1, r1-1-1-1, v0; tibia I d0, p1-1, r1-1, v2-2 -2-2-2; metatarsus I d0, p1-1, r1-1, v2-2 -2. Femur II d1-1-1, p1-1-1- 1-1, r1-1-1-1, v0; tibia II d0, p1, r1-1, v2-2 -2-2-2; metatarso II d0, p1-1, r1-1-1, v2-2 -2. Femur III d1-1-1, p1-1-1- 1-1, r1-1-1-1, v0; tibia III d1, p1-1, r1-1-1, v2-2 -2-2; metatarsus III d0, p1-1-1, r1-1-1, v2-2 -2. Femur IV d1-1-1, p1-1-1, r1-1-1,v0; tibia IV d1-1-1, p1-1, r1-1, v2-2 -2; metatarsus IV d0, p1-1-1, r1-1-1-, v2-2 -2-2. Leg formula: 4- 1-2-3. Allotype . Female (CARCIB 0156). With ocular area darker and without black marks, with hyaline, thick and long setae between the eyes, chelicerae with many thick hyaline setae, promargin with three teeth and retromargin with four teeth and one intermarginal denticle. Endites (2.2/3.7), labium (2.1/2.5) and sternum (5.1/5.7) as in the male. Legs with two claws with two or three teeth. Pedipalp claw with eight pairs of teeth ( Fig. 4 E-F). Opisthosoma with two small dorsal sclerites. Habitus. Total length 27.0, carapace length 14.4, wide 11.9; clypeus length1.1. Eyes diameter: AME 0.5, ALE 0.5, PME 0.8, PLE 0.6, AME-AME 0.2, AME-ALE 0.8, PME-PME 0.4,PME, PLE 0.9, AME-PLE 1.2, AME-PME 0.4, MOQ, front width 3.1, back with 3.8. Leg lengths: I-13.8/6.2/ 13.1/10.3/4.6/48.0; II-12.3/6.3/11.9/9.4/4.0/43.9; III-11.3/5.0/8.9/7.6/4.4/37.2; IV-13.1/5.4/12.5/13.4/4.8/49.2.Legs spination: Femur I d1-1-1, p1-1-1, r1-1-1-1, v0; tibia I d0, p0, r0, v2-2 -2-2-2; metatarso I d0, p0, r0, v2-2 -2. Femur II d1-1-1, p1-1-1-1, r1-1-1-1, v0; tibia II d0, p0, r0, v2-2 -2-2-2; metatarsus II d0, p0, r0, v2-2 -2. Femur III d1-1-1, p1-1-1-1, r1-1-1-1, v0; tibia III d1-1-1,p1-1, r1-1, v2-2 -2; metatarsus III d1, p1-1-1, r1-1-1, v2-2 -2. Femur IV d1-1- 1, p1-1-1, r1, v0; tibia IV d1-1-1, p1-1, r1-1, v2-2 -2; metatarsus IV d0, p1-1-1, r1-1-1, v1-1 -1. Leg formula: 4-1-2- 3. Variation. Male and females specimens present similar coloration as the types . Chelicerae in some males (CARCIB 0157-0160, 0204) with one or no denticles in retromargin, legs with two claws, each with two to five teeth. Total body length in males (n=3): 16.9-18.5, length 9.6-10.0, wide 7.8-8.1, clypeus high 0.3-0.4. Leg length: I-7.5–10.9/2.6–4.6/7.8–12.1/7.0–10.0/3.9–4.8/28.8–42.4; II 9.9–10.0/4.1–4.8/9.4–10.0/8.3–8.8/3.8–4.4/35.5–38.0; III 9.3–9.6/3.6–3.8/7.3–7.4/6.4–7.6/3.5–3.8/30.7–31.9; IV11.5–11.9/3.8–4.4/10.2–11.5/12.4–13.3/4.5–4.8/42.4– 45.9. Total body length in females (n=1): 24.6, carapace length 13.1, wide 9.9, clypeus high 0.9. Leg lengths: I- 11.5/6.2/13.1/10.3/4.6/45.7; II 11.3/5.5/7.3/8.5/3.8/36.4; III 10.0/4.3/10.9/8.6/4.1/37.9; IV 1 2.9/4.9/11.2/12.0/4.6/ 45.6. Paratypes : MEXICO : Baja California Sur : Municipality of La Paz , Sierra de las Cacachilas , Los Pisos , ( 24°12’40” N , 110°06’52” W , 545 m . a.s.l.). 19. X.2014 , C. Palacios and J. Maya , one female (CARCIB 0157) ; same locality, 16. X.2014 , J. H. Valdéz-Villavicencio , C.R. Mahrdt , B.D. Hollingsworth & M. A. Stepek , one male (CARCIB 1058) ; same locality (24.12’21”N, 110°06’35”W , 568.14 m ). 16. X.2014 , M.A. Wall & J. E. Berrian , one male (CARCIB 0204). Municipality of Los Cabos, Biosphere Reserve Sierra La Laguna , Boca de la Sierra ( 23°38’59”N , 119°81’91”W , 311.4m 17.XI-2014 ) J. H. Valdéz-Villavicencio , C.R. Mahrdt , B.D. Hollingsworth & M. A, Stepek , one male (CARCIB 1059) ; same locality and collectors, one female (CARCIB 0160). Municipality of La Paz , Biosphere Reserve Sierra La Laguna , Arroyo La Junta , Casa Verde mines ( 23o39'31"N , 110o5'18"W , 529m . a.s.l.), 7.XII.2015 , M.A. Wall & J.E. Berrian , one male ( SDNHM 072696 ), and one immature ( SDNHM 072705 ) ; Municipality of La Paz , Biosphere Reserve Sierra La Laguna , Arroyo La Junta , Rancho Pareicitos ( 23o39'48"N , 110o4'53"W , 477m . a.s.l.), 4.XII.2015 , M.A. Wall & J.E. Berrian , one immature ( SDNHM 072598 ) ; Municipality of La Paz , Biosphere Reserve Sierra La Laguna , Arroyo La Junta , Casa Verde camp ( 23o39'36"N , 110o5'25"W , 530m . a.s.l.), 5.XII.2015 , M.A. Wall & J.E. Berrian , one male ( SDNHM 072696 ) .