Aamunops hoof, Sánchez-Ruiz & Bonaldo, 2024

Sánchez-Ruiz, Alexander & Bonaldo, Alexandre B., 2024, Updating the morphological phylogenetics of Nopinae (Araneae: Caponiidae): novel terminals and characters, with two new species, European Journal of Taxonomy 930 (1), pp. 182-204 : 189

Aamunops hoof sp. nov.

urn:lsid:zoobank.org:act:3C53B565-DE2F-4228-ABC2-FC23D37B0AAA

Figs 2 , 5B , 13

Diagnosis

The males of A. hoof sp. nov. resemble those of A. noono and A. yiselae sp. nov. by having a short embolus, shorter than the palpal tibia, but can be distinguished by the wide and straight embolus, with a hoof-shaped tip and a very wide hyaline process ( Figs 2D , 5B ).

Etymology

The specific name refers to the shape of the embolus tip that resembles a horse hoof.

Type material

Holotype MEXICO • ♂; Guerrero, Tepecoacuilco de Trujano, Cerro de la Coronilla ; 18.01628° N, 99.52875° W; 855 m a.s.l.; Oct. 2009; T. López, C. Quijano and A. Valdez leg.; CNAN-Ar 9727 .

Description

Male (holotype)

Carapace orange ( Fig. 2C ). Chelicerae, palps, endites, labium, sternum and legs light orange; tibia, metatarsi and tarsi lighter.Abdomen pale gray, without dorsal pattern. Anal tubercle and spinnerets lighter than abdomen. Crista short, covering less than half of metatarsi of legs I–II. Total length 3.5. Carapace 1.4 long, 0.9 wide. Sternum 1.3 long, 0.8 wide. Leg measurements: I: 4.0; II: 3.7; III: 2.9; IV: 4.2. Tegulum globose, spherical; embolus short, wide, length hardly reaching middle of palpal tibia length, with hoof-shaped tip, spermatic duct with very wide hyaline process at tip of embolus ( Figs 2D , 5B ).

Female

Unknown.

Distribution

Known only from the type locality in Mexico ( Fig. 13 ).

Figures

Fig. 2. Aamunops hoof sp. nov., holotype, ♂ (CNAN-Ar 9727). A. Habitus, dorsal view. B. Habitus, ventral view. C. Carapace, dorsal view. D. Left palp, in square a detail of the embolus tip, prolateral view. E. Left palp, retrolateral view. F. Sternum and mouth parts, ventral view. G. Right coxa I and endite, arrows show the basal posterior projections, ventral view. H. Right leg IV, arrows show the adesmatic joints, retrolateral view. Scale bars: A‒B = 1 mm; C‒F = 0.5 mm; G‒H = 0.2 mm.

Fig. 5. Drawings of the embolus tip, prolateral view. A. Aamunops yiselae sp. nov., B. Aamunops hoof sp. nov. Abbreviations: see Material and methods. Scale bars = 0.1 mm.

Fig. 13. Distribution map of species of Aamunops Galán-Sánchez & Álvarez-Padilla, 2022. Aamunops chimpa Galán-Sánchez & Álvarez-Padilla (black square), A. hoof sp. nov. (triangle), A. misi Galán- Sánchez & Álvarez-Padilla (white stars), A. noono Galán-Sánchez & Álvarez-Padilla (white square), A. yiselae sp. nov. (circle) and A. olmeca Galán-Sánchez & Álvarez-Padilla (black star).