Two new species of the genus Paramitraceras Pickard-Cambridge, 1905 (Opiliones: Laniatores: Stygnopsidae) from Chiapas, Mexico Author Cruz-López, Jesús A. Author Francke, Oscar F. text Zootaxa 2013 3641 4 481 490 journal article 10.11646/zootaxa.3641.4.13 f6cd896c-eca3-4b80-9a57-d71ca6194644 1175-5326 219410 864D523A-C4EF-4B80-9E63-B6F9A313AFE4 Paramitraceras pickardcambridgei sp. nov. ( Figures 3 , 4–10 , 25–30 ) Paramitraceras granulatus (partim): Goodnight and Goodnight (1953a): 25 (Pichucalco specimen), misindentification. Type material: male holotype (CNAN-0731) [ July/17/1947 ; C. & M. Goodnight], (lat 17.50861º lon -93.11833º), MEXICO : Chiapas: Pichucalco. Etymology: The specific name is a patronymic in honor of O. F. Pickard-Cambridge, the author who described the genus and its type species. Diagnosis: Differs from P . femorale , P . hispidulum and P . veracruz in males having a bigger cheliceral hand. Similar to P. granulatum and P. t z o t z i l sp. nov. , but it is distinct in the distal apex of the eye mound; dorsal body ornamentation composed of numerous spiniform setae; middle tooth of the cheliceral movable finger rounded; basal tooth of the fixed finger low; medium notch of cheliceral fixed finger shallow, wide; mesodistal tubercle of the pedipalpal tibia with basal bulge; mesal margin not convex in middle portion; femur and tibia IV with ventrodistal tubercles slightly developed; male genitalia with middle portion of pars distalis wide, lateral setae arranged in two rows (with four and six setae, respectively). Description . Male holotype : Measurements: Scutum length: 4.9, scutum width: 4.1. Dorsum : Granulose, densely covered by small rounded tubercles; setae of these tubercles long and spiniform, longer posteriorly; eye mound conical, apex not elongated, straight in both anterior and posterior margins; eye mound ornamentation similar to body ( Fig. 7 ). Venter : Tubercles similar in size and shape to those on dorsum; setae longer in free sternites; lateral margins of the sternum short, only present between fourth coxae. Chelicera : Scutum /cheliceral hand ratio: 1.37. Middle tooth of movable finger rounded, pointing to fixed finger base. Basal tooth of the fixed finger inconspicuous, flat; median notch shallow, wide, approximately half of fixed finger length; middle tooth hump-shaped, low ( Fig. 8 ). Cheliceral hand covered with a few long setae at the fingers base. Pedipalps : Measurements: 2.30/1.00/1.75/1.80/1.00. Femur with six rounded tubercles ventrally, scattered, decreasing in size distally. Tibia with ectodistal tubercle hook-shaped, distally rounded; mesodistal tubercle flat, with basal bulge. Tarsus widened in middle, spoon-shaped, mesal margin with at most eight robust spiniform setae, not uniformly scattered ( Figs. 4–6 ). Legs : Measurements: I: 2.70/0.97/2.00/2.32, II: 3.50/1.35/2.85/3.20, III: 2.90/1.00/2.35/2.80, IV: 3.65/1.00/ 3.10/3.80. All legs similar in ornamentation; densely covered with small rounded tubercles, like those on the dorsum. Femur IV with a row of tiny spiniform tubercles ventrally; ectodistal tubercle thorn-shaped, similar to ectodistal tubercle on tibia IV ( Fig. 10 ). Genitalia : Pars distalis wide in middle, with distal edge dorsally turned and concave in the middle; bilobular projection with lateral lobes stout, distally pointed, spiniform projections hidden behind stylus . Lateral setae arranged in two rows, the basal row composed of four setae, distoventral seta separate from the rest; lateral row composed of six setae, along lateral edge of pars distalis , distal pair slightly ventral, close to ventral microsetae. Lateral setae slightly spatulate distally ( Figs. 25–30 ). Female: Unknown. Distribution. Known only from the type locality.