Taxonomic revision of the “ mexicanus ” group of the genus Vaejovis C. L. Koch, 1836 (Scorpiones: Vaejovidae) Author A, Contreras-Félix Gerardo Author Oscar, Francke B. text Zootaxa 2019 2019-05-03 4596 1 1 100 journal article 26928 10.11646/zootaxa.4596.1.1 cb288575-93a8-4e59-86fd-ee6bae784b6a 1175-5326 2659091 B88EA161-04D3-4D50-B3FD-E98A60DA3740 Vaejovis prendinii Santibáñez-López & Francke, 2010 Figures 4 , 35b , 36b , 37b , 38b , 39b , 40b , 41b , 42 Vaejovis prendinii Santibáñez-López & Francke, 2010 : 556 , 558, 561–563, Fig: 1, 16–22, 54. Type material. Holotype male. MEXICO : Oaxaca , Distrito Ixtlan de Juarez , San Juan Atepec , Rio Grande ( N 17.4° , W 96.566667° , elev. 1327 m ). VII-3-2008 . Cols. : O. Francke , C. Santibáñez and A. Quijano. (CNAN- T0378). Examined. Paratypes : 1 ♂ , 1 ♀ ( CNAN-T0379 ) ; 1 ♀ ( AMNH ), same data as holotype . 1♀ MEXICO : Oaxaca , Distrito Ixtlan de Juarez , San Juan Atepec , 2 km NW of San Juan Atepec , Rio Grande ( N 17.416667° , W 96.55° , elev. 1849 m ). VII-4-2008 . Cols. : O. Francke , C. Santibáñez and A. Quijano. ( AMNH ). Examined . Other specimens examined. MEXICO : Oaxaca , Distrito Ixtlan de Juarez , San Juan Atepec . VII-2008 . Col. : R. Reyes. 1 ♀ ( CNAN-SC3484 ) . MEXICO : Oaxaca , Distrito Ixtlan de Juarez ,. VI-2-1952 . Without collector data. 1 ♂ ( CNAN-SC3483 ) . FIGURE 38. Comparison in shapes and trichobothrial patterns in the pedipalp patella, in species within “ mexicanus ” group: a— V. nigrofemoratus ; b— V. prendinii ; c— V. pusillus ; d— V. rossmani ; e— V. santibagnezi sp. nov. ; f— V. setosus ; g— V. sierrae ; h— V. smithi ; i— V. sprousei ; j— V. talpa sp. nov. ; k— V. tapalpa sp. nov. ; l— V. tenamaztlei ; m— V. tesselatus ; n— V. trespicos ; o— V. zapoteca . Scale bar = 1 mm. Diagnosis. Adults 25 to 34 mm long (Fig: 42-a, b). Carapace (Fig: 35-b) shorter than metasomal segment V (Carapace L/MS-V 0.85±0.1 [0.97]), longer than femur (Carapace L/Femur L 1.17±0.05 [1.26]); anterior margin of carapace concave. Mesosomal tergite VII with a pair granular carinae starting on middle of segment and not reaching posterior margin. Pectinal teeth 19–20 [15–17]; sternite V on males with a small, bright, whitish patch on posterior margin; sternite VII with one pair of faint paramedian carinae, and 20–23 (22) [22] setae. Metasomal segment I wider than long, subquadrate in dorsal view (MSI L/ W 0.78 ±0.01 [0.69]), with ventral submedian carinae smooth to faint; intercarinal spaces on segments I–IV smooth; segment V conspicuously hirsute (MS-V L/ W 1.99 ±0.1 [1.91]; W/D 1.12±0.03 [1.09]). Vesicle (Fig: 36-b) rounded (L/ W 1.68 ±0.1 [1.47]) and broad (W/D 1.31±0.05 [1.18]); dorsal surface flat, posteromedially with a small whitish vesicular gland. Pedipalp femur (Fig: 37-b) and patella (Fig: 38-b) about three times longer than wide (Femur L/ W 2.93 ±0.1 [3.09]; Patella L/ W 2.92 ±0.3 [2.92]); patella dorsointernal carina strong, composed by well differentiated granules. Chela (Fig: 39, 40- b) rounded, as wide as deep (CM L/ W 1.74 ±0.06 [1.87]; W/D 0.95±0.05 [1]; CM L/FF 1.2±0.03 [1.07]) with dorsal retrolateral, dorsal prosubmedian, dorsal median and retrolateral median carinae weak, crenulated to smooth. Pedipalp chela fingers dentate margins slightly scalloped on males, straight on females. FIGURE 39. Comparison in shapes and trichobothrial patterns in the pedipalp chela of males in species within “ mexicanus ” group: a— V. nigrofemoratus ; b— V. prendinii ; c— V. pusillus ; d— V. rossmani ; e— V. santibagnezi sp. nov. ; f— V. setosus ; g— V. sierrae ; h— V. smithi ; i— V. sprousei ; j— V. talpa sp. nov. ; k— V. tapalpa sp. nov. ; l— V. tenamaztlei ; m— V. tesselatus ; n— V. trespicos ; o— V. zapoteca . Scale bar = 1 mm. Hemispermatophore (Fig: 41-b): Lamelliform (TL 2.8; LL 1.5; LW 0.5 mm ), lamella simple, narrower at the level of the hooks, without distal crest; hooks present basally, lobe shaped. Full morphometric variation is given in tables 13 and 14. Setae variation is given in tables 9–12. Distribution. Mexico : Oaxaca . This species is only known from secondary vegetation near San Juan Atepec, Oaxaca ( Figure 4 ). Natural history. Most specimens were collected at night with the aid of black lights; nothing else is known about this species.