Oreoeudesis Franz

Jałoszyński, Paweł, 2015, Confused identity: subgenera of Pseudoeudesis Binaghi belong in two tribes (Coleoptera: Staphylinidae: Scydmaeninae), Zootaxa 4048 (4), pp. 493-507 : 502-503

publication ID	https://doi.org/ 10.11646/zootaxa.4048.4.2
publication LSID	lsid:zoobank.org:pub:7D3B40E7-1AF7-4AA9-8416-6035840E8FEC
DOI	https://doi.org/10.5281/zenodo.6095563
persistent identifier	https://treatment.plazi.org/id/03A72D51-FB31-CB4E-FF79-1FB7FED8F8BA
treatment provided by	Plazi
scientific name	Oreoeudesis Franz
status

Treatment

Oreoeudesis Franz View in CoL , status n.

Oreoeudesis Franz, 1985: 332 View in CoL (as subgenus of Pseudoeudesis View in CoL ). Type species: Pseudoeudesis lindneri Franz, 1963 (des. orig.).

Revised diagnosis. Microphthalmous or anophthalmous, when eyes present then located anteriorly; frontoclypeal groove absent, occipital constriction slightly narrower than vertex; head lacking bristles; submentum lacking lateral sutures; hypostomal ridges short, incomplete; antennae with club composed of three antennomeres; pronotum lacking antebasal pits and grooves, broadest in front of middle; prosternum with long basisternal part, complete notosternal sutures and complete hypomeral ridges; procoxal sockets closed; prosternal process indistinctly carinate; mesoventral intercoxal process long and carinate; ventrolateral foveae present; anterior metaventral process absent; metaventral intercoxal process narrowly separating metacoxae, with two long spines; each elytron with two very small but deep asetose basal foveae.

Redescription. Body of male moderately convex, elongate and slender, deeply constricted between head and pronotum and between pronotum and elytra, with moderately long appendages, pigmentation light brown, cuticle sparsely setose.

Head ( Figs 11–12 View FIGURES 11 – 14 ) with occipital constriction ( Fig. 11 View FIGURES 11 – 14 ; occ) only slightly narrower than vertex and dividing head capsule into exposed anterior part and posterior 'neck' region retracted into prothorax; eyes, if present, rudimentary and located in anterior part of head; tempora lacking thick bristles; vertex broader than long, moderately convex, not bulging dorsocaudad; frons transverse and subtrapezoidal; frontoclypeal groove absent; antennal insertions moderately broadly separated, located beneath weakly raised supraantennal tubercles.

Labrum ( Fig. 11 View FIGURES 11 – 14 ; lb) transverse. Mandibles ( Figs 11–12 View FIGURES 11 – 14 ; md) symmetrical, subtriangular, only curved apical region of each mandible is visible in the studied specimen. Each maxilla ( Fig. 12 View FIGURES 11 – 14 ) with subtriangular basistipes ( Fig. 12 View FIGURES 11 – 14 ; bst) and mediostipes ( Fig. 12 View FIGURES 11 – 14 ; mst), long palpifer ( Fig. 12 View FIGURES 11 – 14 ; ppf), elongate galea ( Fig. 12 View FIGURES 11 – 14 ; gal) and lacinia ( Fig. 12 View FIGURES 11 – 14 ; lac) and strongly elongate and moderately large maxillary palp ( Fig. 12 View FIGURES 11 – 14 ; mxp) composed of elongate palpomere I, strongly elongate, pedunculate and slender palpomere II, large and strongly elongate palpomere III broadest slightly distally to middle, and small, slender, subconical and pointed palpomere IV. Labium with broad submentum ( Fig. 12 View FIGURES 11 – 14 ; smn) lacking lateral sutures; subtrapezoidal mentum ( Fig. 12 View FIGURES 11 – 14 ; mn); and short prementum bearing long labial palps ( Fig. 12 View FIGURES 11 – 14 ; lp) and small median ligula with pair of bristles. Hypostomal ridges ( Fig. 12 View FIGURES 11 – 14 ; hr) incomplete, extending only to middle between anterior margin of submentum and transverse impression demarcating 'neck' region.

Gular plate ( Fig. 12 View FIGURES 11 – 14 ; gp) large and subtrapezoidal; gular sutures ( Fig. 12 View FIGURES 11 – 14 ; gs) superficial; posterior tentorial pits not visible.

Antennae ( Fig. 2 View FIGURES 1 – 6 ) slender, with club composed of three antennomeres.

Prothorax ( Figs 2 View FIGURES 1 – 6 , 13 View FIGURES 11 – 14 ) in dorsal view oval, broadest anterior to middle, with all margins rounded and weakly marked blunt and obtuse-angled anterior and posterior corners; base lacking pits or grooves. Sides of pronotum with dense, thick and long bristles ( Fig. 13 View FIGURES 11 – 14 ).

Prosternum ( Fig. 13 View FIGURES 11 – 14 ) with long basisternal part ( Fig. 13 View FIGURES 11 – 14 ; bst) moderately distinctly demarcated from procoxal cavities ( Fig. 13 View FIGURES 11 – 14 ; pcc); prosternal process ( Fig. 13 View FIGURES 11 – 14 ; psp) indistinctly carinate; procoxal sockets ( Fig. 13 View FIGURES 11 – 14 ; pcs) closed; hypomera ( Fig. 13 View FIGURES 11 – 14 ; hy) elongate, each divided into broad lateral part confluent with pronotum and narrow inner (adcoxal) part; hypomeral ridges ( Fig. 13 View FIGURES 11 – 14 ; hyr) and notosternal sutures ( Fig. 13 View FIGURES 11 – 14 ; nss) complete.

Mesoscutellum (not shown) visible between elytral bases in intact specimens but very small, broadly subtriangular, several times as broad as long; scutoscutellar suture indistinct.

Mesoventrite ( Fig. 14 View FIGURES 11 – 14 ) lacking demarcated anterior ridge; mesoventral intercoxal process ( Fig. 14 View FIGURES 11 – 14 ; msvp) long, carinate and moderately projecting ventrally; sides of mesoventrite with sparsely setose impressions distant from anterior margin of ventrite; mesanepisternum with moderately long prepectus ( Fig. 14 View FIGURES 11 – 14 ; pre); ventrolateral foveae ( Fig. 14 View FIGURES 11 – 14 ; vlf) deep; mesocoxal projections ( Fig. 14 View FIGURES 11 – 14 ; mcp) prominent, with mesocoxal sockets located on their ventral surface, exposed in ventral view.

Metaventrite ( Fig. 14 View FIGURES 11 – 14 ; v3) subtrapezoidal, anteriorly fused with mesoventrite, posteriorly deeply bisinuate; metaventral intercoxal process ( Fig. 14 View FIGURES 11 – 14 ; mtvp) narrowly separating metacoxae, with two long spines. Metanepisterna and metepimera narrow.

Metafurca (not shown) with short stalk and divergent lateral furcal arms.

Elytra ( Fig. 2 View FIGURES 1 – 6 ) oval, each with two very small but deep asetose basal foveae; humeral calli, basal impressions and subhumeral lines absent.

Hind wings absent.

Legs ( Figs 2 View FIGURES 1 – 6 , 13, 14 View FIGURES 11 – 14 ) moderately long and slender; femora gradually clavate, tibiae broadening distally, tarsi short and robust.

Aedeagus ( Figs 17–22 View FIGURES 15 – 22 ) thin-walled, in ventral view approximately drop-shaped; median lobe symmetrical, endophallus asymmetrical, with bell-shaped structure and long sclerites; parameres free, slender, each with one apical seta.