Magnichela, Silva, Estevam Luís Cruz Da & Lise, Arno Antonio, 2006

Silva, Estevam Luís Cruz Da & Lise, Arno Antonio, 2006, Description of two new spider genera of Trechaleidae (Araneae: Lycosoidea) from Northern Brazil, Zootaxa 1275, pp. 61-68 : 64-65

Magnichela gen. n.

Figs 6–13

Type species. Magnichela santaremensis sp. n.

Etymology. The generic name is a combination of two Latin words, “magni” (large) and “chela” (chelicerae). The grammatical gender is feminine.

Diagnosis. This genus can be distinguished from Paradossenus , its closest related genus, by the presence of prominent and laterally dilated chelicerae ( Fig. 8 ) and the tibia of the palpus dilated at the median portion (VP) ( Fig. 9 ).

Description. Carapace low ( Fig. 7 ). Chelicerae glabrous medially, with a lateral projection ( Fig. 8 ). Legs yellowish, with brownish spots dorsally. Abdomen, oval with indistinct pattern ( Fig. 6 ). Anterior and posterior eye row moderately procurved ( Fig. 8 ). ALE the smallest and PLE the largest. Chelicerae with 3 teeth on the promargin of the fang furrow and 3 on the retromargin, being the median the largest. Ventral macrosetae pairs on tibiae: I 4, II 4, III 3, IV 3. Long legs (19.01 to 6.29 long) and straight tarsi. Bulbus of the male palpus without a conspicuous division of the median apophysis ( Fig. 11 ); subtegulum and tegulum conspicuous ( Fig. 11 ). Retrolateral tibial apophysis with two branches (ental ( END) and ectal (ECD) divisions) ( Figs 10–12 ). Ventrodistal protuberance of palpal tibia prominent ( Fig. 9 ).

Distribution. Brazil (Pará) ( Fig. 13 ).

Figures

FIGURE 13. Distribution of species of Amapalea gen. n. and Magnichela gen. n. in South America

FIGURES 6 – 12. Magnichela santaremensis gen. n. sp. n. 6 – 8, Habitus (6, dorsal; 7, lateral; 8, frontal view); 9 – 12, Left palpus (9, dorsal; 10, ventral; 11, prolateral; 12, retrolateral view). Abbreviations: DD—dorsal division of median apophysis; ECD—ectal division of retrolateral tibial apophysis; END—ental division retrolateral tibial apophysis; G—guide (terminal portion of median apophysis); VD—ventral division of median apophysis; VP—ventrodistal protuberance of male palpal tibia.