Revision of the camel spider genus Eremocosta Roewer and a description of the female Eremocosta gigas Roewer (Arachnida, Solifugae) Author Cushing, Paula E. Author Channiago, Felix Author Brookhart, Jack O. text Zootaxa 2018 2018-03-29 4402 3 443 466 journal article 30380 10.11646/zootaxa.4402.3.2 57f8ff28-59ea-403a-8d53-2f16eef6d0d8 1175-5326 1209676 50282593-0195-4899-980F-493E062B71B0 Key to the species of Eremocosta 1 Fondal notch (male) deep and distinct ( Figs. 2I , K, S )....................................................... 2 - Fondal notch short and/or indistinct ( Figs. 2A, E, O, W )...................................................... 4 2 VDC (male) proximal on ventral edge of fixed finger ( Figs. 1C , 2I , J )................................. E. formidabilis - VDC distal on ventral edge of fixed finger................................................................. 3 3 Male fixed finger dagger-like ( Fig. 2K ) with distinct MM and distinct tooth-like MD ( Fig. 2K , arrow). Female genital operculum as in Fig. 4C with wings tear-drop shaped......................................................... E. gigas - Fixed finger not dagger-like, MM lacking or greatly reduced and MD present as a ridge ( Fig. 2S , arrow). Female genital operculum with straight, parallel, narrow anterior arms broadening into distinct, rounded club-shaped wings, shaped like hockey sticks ( Fig. 4E )................................................................................ E. striata 4 Male movable finger with quadrate MD ( Fig. 2O , arrow), female genital operculum as in Fig. 4D with recurved anterior arms and recurved posterior margins................................................................. E. gigasella - Movable finger with no MD, female genital operculum not as above............................................. 5 5 Male fixed finger usually as long as or slightly longer than movable finger. Movable finger usually with two small MSM (sometimes only one) ( Fig. 2W ). Lower edge of VDC, when viewed from ectal side of chelicera, slightly concave ( Fig. 2W ). Female genital operculum with long straight anterior arms; posterior wings quadrate as in Fig. 4F. .............. E . titania - Fixed finger usually slightly shorter than movable finger. Movable finger usually with just one small MSM ( Figs. 2A, 2E ). Lower edge of VDC, when viewed from ectal side of chelicera, slightly convex ( Figs. 2A, 2E ). Female genital operculum as in Figs. 4A or B........................................................................................ 6 6 Male movable finger with small but distinct MM ( Fig. 2E ). Female genital operculum club-shaped with long anterior arms and a posterior knob, posterior wing ovate as in Fig. 4B............................................... E . calexicensis - Movable finger with barely visible MM (sometimes a tiny ridge) ( Fig. 2A ). Wings of genital operculum thin and curved as in Fig. 4A..................................................................................... E . bajaensis