Aamunops Galan-Sanchez & Alvarez-Padilla 2022
Creators: name: Sánchez-Ruiz, Alexander
name: Bonaldo, Alexandre B.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Caponiidae
Aamunops

description: Genus Aamunops Galán-Sánchez & Álvarez-Padilla, 2022
Type species
Aamunops olmeca Galán-Sánchez & Álvarez-Padilla, 2022 by original designation.
Emended diagnosis
Members of Aamunops can be distinguished from all non-nopines genera by the presence of adesmatic joints on the tarsi (Figs 2H, 3G, 4H–I); males differ from all other Nopinae by the presence of a hyaline process associated with the seminal duct, protruding near the embolus tip (Fig. 5A–B), and females by the presence of a sclerotized-bifid duct on the anteromedian receptacle base (Fig. 6D).
Other species included
A. chimpa Galán-Sánchez & Álvarez-Padilla, 2022, A. hoof sp. nov., A. misi Galán-Sánchez & Álvarez-Padilla, 2022, A. noono Galán-Sánchez & Álvarez-Padilla, 2022 and A. yiselae sp. nov.
Description
Described by Galán-Sánchez & Álvarez-Padilla (2022: 55). New data and emendations: anterior median eyes dark, situated on slightly elevated black tubercle (Figs 2C, 3C, 4C). Chelicerae with promarginal and retromarginal rake setae on the anterior and posterior margins of the fang furrow (Fig. 7D–F), even reaching ectal side; a few retromarginal slit sensilla on the apical side of chelicerae (Fig. 7E). Endites with a short posterior basal projection, more pronounced in males (Figs 2G, 3D, 4D). Legs without spines; coxae I–II also with a short posterior basal projection, coxae III–IV without basal projections (Figs 2G, 3D, 4D); anterior femora enlarged, three times (or less) as long as wide (Fig. 8A–B); metatarsi I, II and III entire, metatarsus IV with a few, wide adesmatic joints restricted to a small portion in the apical third of metatarsus (Figs 2H, 3G, 4H–I, 9E–F); gladius enlarged, short, sword-shaped (Fig. 8C–E), the most common shape among nopines; all tarsi bi-segmented with a single adesmatic joint (Fig. 8E), pretarsus without a perceptible arolium (Figs 10A, 11B), unpaired claws short on all legs, smooth without small teeth (Figs 10A, 11A); few ventral frictional setae on tarsi and several other setae around pretarsal claws (Fig. 10A–B, F); tibiae, metatarsi, and tarsi with trichobothria in a single row, bases with semicircular rim bearing slight longitudinal ridges (Fig. 10C–D), tarsal organ exposed, roundish, with marginal ring slightly pronounced (Figs 10E, 11D), slit sensilla on tibiae, metatarsi and tarsi (Fig. 11C). Female spinnerets with one major ampullate gland and two piriform gland spigots on ALS (Fig. 12A, C), one presumed minor ampullate gland and an aciniform gland spigots field with at least up to nine glands on PMS (Fig. 12C), at least eleven aciniform gland spigots on PLS (Fig. 12D). Female palpal femur arcuate upwards (Fig. 4E–F), male palpal femur straight (Fig. 2D–E). Male embolus long in A. chimpa, A. misi and A. olmeca, short in A. hoof sp. nov., A. noono and A. yiselae sp. nov., strongly sclerotized, protruding from the center of the tegulum, ventrally directed (Figs 2D–E, 3H–J). Female internal genitalia consisting of a membranous posterior receptacle (pr) covering a pair of horizontal sclerotized bars (psb) which leads with the sclerotized bifid duct (mp) on anteromedian receptacle base (arb); also an anteromedian receptacle formed by a base (arb) leading to a large, oval membranous sac-like structure (sac) covered with scattered accessory gland openings (Figs 6B–D, 11E–F).
Updated key for the species of Aamunops Galán-Sánchez & Álvarez-Padilla, 2022
1. Males ................................................................................................................................................. 2
– Females ............................................................................................................................................. 7
2. Long embolus, equal to or longer than palpal tibia, with a narrow base and a hyaline process reaching the tip (Galán-Sánchez & Álvarez-Padilla 2022: figs 7, 25, 44) ...................................................... 3
– Short embolus, not as long as palpal tibia, with a wide base and a narrow tip that looks like a triangle in lateral view ................................................................................................................................... 5
3. Embolus as long as palpal tibia, distal portion bent (Galán-Sánchez & Álvarez-Padilla 2022: figs 26, 44) ..................................................................................................................................................... 4
– Embolus two times as long as palpal tibia, slender, curved (Galán-Sánchez & Álvarez-Padilla 2022: figs 7, 16) ........................................................... A. olmeca Galán-Sánchez & Álvarez-Padilla, 2022
4. Thick, rounded embolus tip; swollen cymbium (Galán-Sánchez & Álvarez-Padilla 2022: figs 27, 37) ..................................................................... A. chimpa Galán-Sánchez & Álvarez-Padilla, 2022
– Thin, sharpened embolus tip (Galán-Sánchez & Álvarez-Padilla 2022: fig. 55) ............................... ................................................................................ A. misi Galán-Sánchez & Álvarez-Padilla, 2022
5. Slender, sinuous embolus, with a curved or straight tip and a hyaline process very thin ................. 6
– Wide, straight embolus, with a hoof-shaped tip and a hyaline process very wide (Figs 2D–E, 5B) .. .................................................................................................................................... A. hoof sp. nov.
6. Embolus tip straight with small denticles on the tip and a minute hyaline process (Galán-Sánchez & Álvarez-Padilla 2022: figs 62, 68) ...................... A. noono Galán-Sánchez & Álvarez-Padilla, 2022
– Embolus tip curved without denticles on the tip and a longer and fine hyaline process (Figs 3H–J, 5A) ......................................................................................................................... A. yiselae sp. nov.
7. Anteromedian receptacle with a V-shaped sclerotized bifid duct (Galán-Sánchez & Álvarez-Padilla 2022: fig. 11) ...................................................... A. olmeca Galán-Sánchez & Álvarez-Padilla, 2022
– Anteromedian receptacle with a T-shaped sclerotized bifid duct (Fig. 6D) ..................................... 8
8. Sclerotized bifid duct with a concave anterior margin (Galán-Sánchez & Álvarez-Padilla 2022: fig. 29) ............................................................................................................................................... 9
– Sclerotized bifid duct with a convex anterior margin (Fig. 6D) ............................ A. yiselae sp. nov.
9. Sclerotized bifid duct long and thin (Galán-Sánchez & Álvarez-Padilla 2022: figs 29–30) .............. ........................................................................... A. chimpa Galán-Sánchez & Álvarez-Padilla, 2022
– Sclerotized bifid duct short and wide (Galán-Sánchez & Álvarez-Padilla 2022: figs 48–49) ............ ................................................................................ A. misi Galán-Sánchez & Álvarez-Padilla, 2022
description: Published as part of Sánchez-Ruiz, Alexander & Bonaldo, Alexandre B., 2024, Updating the morphological phylogenetics of Nopinae (Araneae: Caponiidae): novel terminals and characters, with two new species, pp. 182-204 in European Journal of Taxonomy 930 (1) on pages 187-189, DOI: 10.5852/ejt.2024.930.2493, http://zenodo.org/record/10926072