Euthycaelus colonicus Simon 1889

Guadanucci, José Paulo Leite & Weinmann, Dirk, 2014, The spider genera Euthycaelus Simon and Schismatothele Karsch (Mygalomorphae, Theraphosidae), Zootaxa 3795 (3), pp. 275-288 : 276-278

Euthycaelus colonicus Simon 1889

( Figs 1 A–H; Tables 1–2 )

Euthycaelus colonicus Simon 1889: 200 (description of ♀).

Hapalopus cervinus Simon 1889: 209 (description of ♀). New synonymy. Hemiercus cervinus: Simon 1903: 929 (transfer from Hapalopus); Rudloff 1997: 14.

Type material. Lectotype, by present designation, ♀, E. colonicus , MNHN 9850, from San Esteban, Carabobo, Venezuela, examined. Paralectotypes, by present designation: four ♀, same data as lectotype, examined. Holotype ♀, Hapalopus cervinus , MNHN 9873, from San Esteban, Carabobo, Venezuela, examined.

Diagnosis. Males of E. colonicus can be distinguished from their congeners by the shape of the palpal bulb ( Figs 1 A–C), which bears keels on the ventral face near the embolus and by the long spines on the retrolateral face of the palpal tibia ( Figs 1 E, F). Females are distinguished from their congeners (except E. amandae sp. nov.) by the shape of the spermathecae ( Figs 1 G, H), composed of two triangular receptacles and from those of E. amandae sp. nov. by having the two spermathecae receptacles close together.

Description. Male (MZSP 57221). Total length: 25.2. Carapace: length 10; width 7.9. Eye tubercle: length 1.5; width 1.8. Labium: length 1.1; width 1.7. Sternum: length 4.3; width 4.2. Basal segment of chelicerae with 9–10 teeth. Labium subquadrate, with more than 100 cuspules. Maxillae with more than 100 cuspules, each one. Sternum rounded, slight bulge near labium, posterior sigilla away from sternal margin. Thoracic fovea straight and narrow. Spines: Palp: femur (d) 0-0-p1, tibia (r) 11 thick spines. Legs: I: femur (d) 0-0-p1, tibia (v) 1-2-1, metatarsus (v) 1-0-ap2; II: femur (d) 0-0-p1, tibia (v) 2-2-ap3, (p) 0-0-1, metatarsus (v) 1-1-ap3, (p) 0-1-0; III: femur (d) 0-0-r1, patella (p) 1, tibia (r) 1-1-0, (v) 2-2-ap2, (p) 1-1-0, metatarsus (r) 0-1-1, (v) 2-3-ap3, (p) 1-1-1; IV: femur (d) 0-0-r1, tibia (v) 2-2-ap2, (r) 1-0-1, metatarsus (v) 1-3-ap3, (p) 1-1-1, (r) 1-0-1. Palpal bulb with short embolus, small keels on ventral surface, long and narrow keel on dorsal surface near the embolus.( Figs 1 A–C). Palpal tibia swollen, with long spines in two rows ( Figs 1 E, F). Retrolateral branch of tibial spur very long, tapering, with small spine inserted on its midlength, prolateral branch longer than contiguous spine ( Fig.1 D). Metatarsus I bends retrolaterally to tibial spur. Metatarsal scopulae extent (ventral surfaces only): I, for almost entire length; II, for more than distal 3/4; III, for more than distal half; IV, for less than half. Tarsal scopulae (ventral surfaces only): I–II entire; III–IV divided by longitudinal band of thick setae. Paired tarsal claws with row of small teeth.

Female (MNHN 9850). Total length: 33.4. Carapace: length 12.3; width 9.9. Eye tubercle: length 1.5; width 2.1. Labium: length 1.7; width 2.4. Sternum: length 5.4; width 5.3. Basal segment of chelicerae with 10–11 teeth. Labium subquadrate, with more than 100 cuspules. Maxillae with more than 100 cuspules, each one. Thoracic fovea procurved. Spines: Palp: femur (d) 0-0-p1, tibia (v) 0-0-ap3. Legs: I: femur (d) 0-0-p1, tibia (v) 0-0-ap1, metatarsus (v) 1-0-ap1; II: femur (d) 0-0-p1, tibia (v) 0-1-ap2, (p) 0-1-0, metatarsus (v) 1-0-ap3; III: femur (d) 0-0- 2, patella (p) 1, tibia (r) 1-1-0, (v) 1-2-ap3, (p) 0-1-0, metatarsus (r) 0-1-1, (v) 2-1-ap3, (p) 1-1-1; IV: femur (d) 0-0- r1, tibia (v) 2-2-ap3, (r) 1-1-0, metatarsus (v) 1-2-ap3, (r) 0-1-1, (p) 1-1-1. Spermathecae comprising two conical and short receptacles, heavily sclerotized ( Figs1 G, H). Metatarsal scopulae extent (ventral surfaces only): I–II, for distal ¾; III, for more than distal half; IV, for less than half. Tarsal scopulae (ventral surfaces only): I–II, entire; III–IV, divided by longitudinal band of thick setae. Paired tarsal claws with small teeth in one row.

Additional material. VENEZUELA: ARAGUA: Uraca: 1♂ (DW GS59) and 1♀ (DW KS167), P. N. Henry Pittier, 24.VI.2002. CARABOBO: San Esteban: 1♂ ( MZSP 57221), 1♀ ( SMF), 22.III.2000, F. Pribik leg. FALCÓN: San Luis: 1♂ ( MZSP 28427), 1♂ ( MZSP 28428), 1♀ ( MZSP 28429), 1♀ ( MZSP 28430), 1♂ ( MZSP 28431), 1♂ and 1♀ ( SMF), N11°10.852´, W69°43.891, 17-21.IX.2002, D. Weinmann, F. Pribik leg. TRUJILLO: Escuque: 1♂ ( MZSP 28425) and 1♀ ( MZSP 28426), 26.III.2000, F. Pribik leg. Sabaneta: 1♀ ( SMF), 7.X.2000, D. Weinmann leg.

Figures

FIGURE 1. Euthycaelus colonicus Simon 1889. A – C. Male palpal bulb, prolateral (A), retrolateral (B), and dorsal (C) views. D. Male, leg I, tibial apophysis, ventro-prolateral view. E, F. Male palpal tibia, ventral (E) and retrolateral (F) views. G, H. Female spermathecae, ventral (G), and dorsal views (H). Scale = 1 mm.