Flavonuncia ubicki, Abel & Pérez-González, 2025

Flavonuncia ubicki n. sp.

( Figs 6-9 View FIG View FIG View FIG View FIG ; 23B, G, L View FIG )

urn:lsid:zoobank.org:act:98ACD478-4293-4143-9AA2-62CC86C937CF

TYPE MATERIAL. — Holotype. Madagascar • ♂; Toamasina,

Analamay-Mantadia, Ambaroharanana; Elev. 1012 m; 18°48’14”S, 48°24’18”E; coll. Malagasy ant team; 19-21.XII.2012; sifted litter, rainforest, collection code: BLF30324; CASTYPE 21649. Paratypes. Madagascar GoogleMaps • 1 ♀; same data as for holotype; CASENT 9072045 • 1 ♂ SEM voucher; same data; MACN-Ar 45999 • 1♀; same data; MACN-Ar 46000 .

D, 200 µm.

ETYMOLOGY. — Patronymic in honor of the former CAS arachnologist and friend Darrell Ubick, in recognition of his contribution to the advances of arachnology.

COMPARATIVE DIAGNOSIS. — Robust, long legged Flavonuncia species, differing from all known Flavonuncia species by the pair of apical tubercles present on the top of the ocularium. The penis is similar to Flavonuncia pupilla .

DISTRIBUTION ( Fig. 1 View FIG ). — Known only from the type locality.

DESCRIPTION

Male (CASTYPE 21649)

Measurements. See Table 1.

Dorsum ( Figs 6A, C View FIG ; 7A, B View FIG ). Outline hourglass-shaped of Eta (η) type. Ocularium conical, with a pair of apical tubercles, eyes located on the top of the ocularium. Mesotergal scutum without tubercles or apophyses. Carapace smaller than mesotergum, mesotergal areas not clearly defined, areas I-II with a row of two small setiferous granules, area III with three, area IV with eight, the posterior border with a row of 15 granules. Free tergites bearing a row of granules on each tergite.

Venter ( Figs 6E View FIG ; 7C, D View FIG ). Coxae ventral surface covered by setae; coxa I bearing 8-9 granules, almost all ventral surface covered by cerotegument, except by the proximal coxa II-III;

proximal coxa II with a remarkable tubercle with three basal setae and one tubercle with subdistal setae; coxa III with three tubercles, small bridge present, spiracles not visible. Sternum straight with a drop shape base.

Chelicerae ( Fig. 8A, B View FIG ). Basicheliceritae bearing a small tubercle on dorso-distal surface, cheliceral hand bearing seven ectal small tubercles with subdistal setae, two mesal small granules, and one mesal tubercle with subdistal setae.

Pedipalps ( Fig. 8C, D View FIG ). With one ventral and two small dorsal tubercles, femur bearing a ventral row of small tubercles and two distal acute tubercles on the distal surface, patella with four mesal tubercles, tibia ventral surface bearing sparse small tubercles, with a medial and 2-3 apical acute tubercles with subdistal setae, tarsus bearing four ectal and five mesal tubercles with setae.

Legs ( Fig. 8 View FIG E-H). Astragalus longer than calcaneus. Tarsal count: 3-6-4-4.

Genitalia ( Figs 9 View FIG ; 23B, G, L View FIG ). Penis proportionally larger than other species of Flavonuncia . Capsula interna longer than the ventral plate, ventral view with a cleft separating the capsula interna into two halves, apical portion of ventral plate narrow arch-shaped, with upper and lower macrosetae not aligned in dorsal view. Ventral view, with a group of three macrosetae. Distal capsula interna with a complex structure ending in a thin free stylus. Ventral distal part of the capsula interna bearing a hexagonal process.

Female (CASENT 9072045) ( Fig. 6B, D, F View FIG )

Similar to male, presenting dimorphism in the body coloration, females having a dark brown opisthosoma while the males are yellowish with brown stripes. Pedipalps larger in males.