Andinopanurgus chirosimpson Packer 2021, new species

Andinopanurgus chirosimpson Packer, new species ZooBank: urn:lsid:zoobank.org:act: 602929D3-03C0-459E-9641-5350C04C653C (Figs. 1–8, 24) DIAGNOSIS: The new species, known only from the male, can be differentiated from all other bees except the second new species described below by the very unusual setal patern on S4 (Figs. 4–5), which involves setae that are branched into two unequal halves or three or four more equal thirds or quarters respectively. Each branch is somewhat digitiform and the whole structure can look like a human hand (minus the thumb) or rake while the three-branched hairs look somewhat like tridents. There are weak longitudinal raised lines on these branches (Fig. 5). While some related species, A. bachue (Gonzalez & Ruz), A. rangeli (Gonzalez & Ruz), and A. wayruronga (Gonzalez & Ruz), have short, broad setae apicomedially on S5, these species do not have unusual setae on S4 (they also differ in numerous other ways, but the details of the setation of S4 of the new species alone is sufficient to diagnose it). It can be differentiated from A. lynnae, described below, by the absence of the pale transverse clypeal marking that is present in A. lynnae and in details of the setation on S4 (compare Figs. 4–5 with Figs. 11–12). DESCRIPTION: ♂: Body length 6.05 mm, forewing length 4.3 mm, head width 1.55 mm, intertegular distance ≈ 0.9mm [thorax somewhat distorted by pin]. Coloration. Black, following parts dark red-brown: apex of mandible, base of labrum, legs, tegula, vein R and prestigma; apex of apical impressed areas of T 4– T 6, all of T 7, apical impressed areas of S1–S5; all of S6; following parts dark yellow brown: reflexed sides of terga and most remaining wing veins and stigma; F2–F11 dark brown ventrally, black-brown dorsally; wing membranes pale yellow-brown. Pubescence. Whitish with numerous short branches, sparse unless stated otherwise; longest less than 2.5 MOD on face, mesoscutum and scutellum and relatively dense on sides and ventral surface of mesosoma including procoxa, protrochanter, and metacoxa; shorter ≈1.5 MOD on genal area below, lateral surface of propodeum above; dense, somewhat anteriorly oriented and short ≈1 MOD on metanotum; metasomal terga with obscure hairs except T 6– T 7 with pale orange hairs ≈1.5 MOD; apex of T 7 with dense cream-colored plumose short ≈0.5 MOD hairs obscuring underlying integument; S1 and apicolateral portions of S2–S6 with branched hairs ≈1.5 MOD; S4 apicomedially with setae that are divided from near the base into two to four parallel, digitiform branches, setae up to ≈0.3 MOD wide, the four-branched ones are less than twice as long as the width of a seta; S5 with erect hairs broad at base ≤1 MOD. Hairs on vertex brown, <1.5 MOD. Surface sculpture. Microsculpture absent on clypeus; weak lateral of lateral ocelli, on discs of mesoscutum and scutellum, T 7 and S6; distinct, surface somewhat dull elsewhere except strong and surface dull on metanotum, metapostnotum and sides of mesosoma. Clypeal punctures large, elongate, i d, T 5– T 7 punctures increasingly distinct, variable in size, i>d except towards side of T 7 i

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