Description of two new spider genera of Trechaleidae (Araneae: Lycosoidea) from Northern Brazil
Author
Silva, Estevam Luís Cruz Da
Author
Lise, Arno Antonio
text
Zootaxa
2006
1275
61
68
journal article
10.5281/zenodo.173319
34d1bd96-0917-441f-a3c7-dc0aefe486bb
11755326
173319
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
).