Austrelmis talampayensis Manzo & Archangelsky, 2015, sp. nov.
Creators: name: Manzo, Veronica
name: Archangelsky, Miguel
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Elmidae
Austrelmis
Austrelmis talampayensis

description: Austrelmis talampayensis sp. nov.
(Figs 1 d; 5 a–c)
Diagnosis. This new species may be distinguished from all the other known Austrelmis species by the following combination of characters: 1) pronotum with sublateral carinae on apical 2/5; 2) prosternum with lateral carinae on basal half; 3) metaventrite and disc of ventrite I with complete lateral carinae; 4) sixth elytral interval with short basal row of granules and eighth interval with complete carina; 5) aedeagus long; penis elongate, apex slightly folded forward; fibula and corona present; basolateral apophyses short; parameres shorter than penis; phallobase longer than penis, open.
Description. Holotype: male. Body elongated, sides subparallel. Length: 3.15 mm; greatest width: 1.30 mm (at midlength of elytra).
Color: pronotum dark, elytra reddish dark; antennae, mouthparts and legs reddish.
Plastron: covering genae, sides of prosternum, sides of meso- and metaventrite, sides of all ventrites, epipleura, inner face of coxae and all femora.
Head: surface punctured, punctures as wide as facets of eyes, separated by 2–3 times their diameter; surface between punctures microreticulated and rugose, with dispersed long golden setae. Fronto-clypeal suture deep and straight; surface of clypeus like head. Labrum subrectangular, lateral margin rounded; surface with dispersed golden setae and punctured, small punctures separated by 2–3 times their diameter; surface between punctures shiny. Antennae with 11 antennomeres, apical segment longest.
Thorax. Pronotum: wider than long (length: 0.75 mm; width: 0.90 mm) (Fig. 1 d) with oblique and lateral impression at 3/5 of pronotum; lateral margins moderately sinuate, anterior margin arcuate, anterolateral angles long and acute; posterolateral angles short, subacute; base trisinuose; surface punctured and microreticulated, with dispersed long and golden setae. Disc convex; surface with punctures larger than the facet of eyes, separated by 2– 2½ times their diameter. Sublateral carinae on apical half, curved outwards and very evident. Surface on lateral margin and base granulated; granules as wide as facets of eyes, separated by 1–1½ times their diameter.
Hypomeron: surface microreticulated, with disperse granules. Prosternum wide; lateral carinae present on basal half; prosternal process subquadrangular, almost as wide as long, apex straight. Mesoventrite: with groove for reception of prosternal process. Metaventrite: surface punctured, punctures larger than facet of eyes, separated by 2–3 times their diameter; surface between punctures smooth and shiny; lateral surface with dispersed oval granules; lateral carinae complete, disc with complete median longitudinal line.
Legs: elongated. Surface of all tibiae and femora with dispersed oval granules. Tibiae with a single lateral cleaning fringe on apical 2/3. Length: forelegs 2.10 mm, middle legs 2.15 mm, hind legs 2.50 mm. Tarsi with 5- segmented; fifth tarsomere longest; tarsal claws long and slender, not modified.
Elytra: (length: 2.15 mm; greatest width: 1.30 mm) with ten punctuate striae, striae formed by large punctures, punctures separated by one time their diameter; elytral intervals punctured, punctures small, separated by 2–3 times their diameter; sixth interval with short basal row of subovate granules; eighth interval with complete carina; elytral apex weakly protruded. Scutellum subtriangular, surface punctured, punctures small, separated by 2–3 times their diameter.
Abdomen: ventrites convex; surface with punctures like those on metaventrite. Disc of ventrite I with complete lateral carinae; surface of ventrite V with dispersed granules; lateral margin produced as prominent tooth; apex rounded with short golden dense setae.
Male genitalia: aedeagus (Figs 5 a–b) long and moderately broad. Penis elongate, subtriangular, apex rounded and slightly folded forward (in dorsal view); fibula and corona present; basolateral apophyses slender and short.
Parameres subtriangular, shorter than penis, with rounded apices. Phallobase asymmetrical, longer than penis, open.
Female: externally similar to male.
Female genitalia: as in Fig. 5 c.
Intraspecific variation: cuticle of some specimens light brown, almost yellow, except anterior margin of pronotum (dark brown); surface of pronotum punctured, punctures large, separated by 2–3 times their diameter; elytral striae with large punctures.
Type series. Holotype (dissected and illustrated): Male. Argentina: La Rioja Province, Parque Nacional Talampaya, Shimpa River (estación I), 3- VIII-1999, M. Archangelsky leg. Paratypes: 19 males and 46 females, same data as holotype.
Etymology. Named talampayensis, for the locality, Talampaya, where the type specimens were collected.
description: Published as part of Manzo, Veronica & Archangelsky, Miguel, 2015, Austrelmis Brown (Coleoptera: Byrrhoidea: Elmidae) from Argentina: five new species, pp. 403-416 in Zootaxa 4058 (3) on pages 410-411, DOI: 10.11646/zootaxa.4058.3.7, http://zenodo.org/record/243269