Euspilotus (Neosaprinus) perrisi ( Marseul, 1872 )

Lackner, Tomáš, 2010, Review of the Palaearctic genera of Saprininae (Coleoptera: Histeridae), Acta Entomologica Musei Nationalis Pragae (suppl.) 50, pp. 1-254 : 106-111

publication ID	https://doi.org/ 10.5281/zenodo.4272127
DOI	https://doi.org/10.5281/zenodo.4342013
persistent identifier	https://treatment.plazi.org/id/0385915E-FFFA-095B-601E-FA9CCF4AFDAD
treatment provided by	Felipe
scientific name	Euspilotus (Neosaprinus) perrisi ( Marseul, 1872 )
status

Treatment

Euspilotus (Neosaprinus) perrisi ( Marseul, 1872) View in CoL

( Figs. 35 View Figs , 53 View Figs , 74 View Figs , 88 View Figs , 117 View Figs , 162–167 View Figs , 178 View Figs , 318–338 View Figs View Figs )

Saprinus perrisi Marseul, 1872: 415 View in CoL . Saprinus perrisi: SCHMIDT (1885a) View in CoL : 308. Saprinus pseudognathoncus Reitter, 1904: 34 View in CoL . Synonymized by DAHLGREN (1968): 86. Saprinus pseudognathoncus: REICHARDT (1941) View in CoL : 184, 240, Fig. 82P; IABLOKOFF- View Figs KHNZORIAN (1964): 109. Euspilotus (Neosaprinus) perrisi: DAHLGREN (1968) View in CoL : 86, Figs. 24 View Figs , 4B,C; KRYZHANOVSKIJ View Fig & REICHARDT (1976): 124,

Figs. 170–173 View Figs ; VIENNA (1980): 128, Figs. 48, 49 View Figs ; MAZUR & KASZAB (1980): 48, Figs. 25 View Figs A–D; MAZUR (1984):

71; MAZUR (1997): 238; YÉLAMOS (2002): 293, Figs. 145 View Figs , 146 View Fig A–E; MAZUR (2004): 91.

Note. Sensory structures of the antennal club and spermatheca were studied by De Mar zo & Vienna (1982a,b). Larva was described by Kal ashian (1996).

Type locality. France, Corsica.

Type material examined. Saprinus perrisi . SYNTYPE: ♀, ‘ Saprinus / perrisi m / Corse [illegible] / Aug. [?] [18]73 [round label, written] // Pokoy [illegible] [round, written label glued onto a mounting card] // Museum Paris / Coll. De Marseul / 28490 [written] // TYPE [red-printed label]’ ( MNHN).

Saprinus pseudognathoncus . HOLOTYPE: ♁, male genitalia extracted and glued to the same mounting card as the specimen: ‘Caucas. / Occid. / Novoross. / 15.vi.[18]99. / Starck [printed-written] // pseudognathon- / cus m. 1904. Typ [written] // coll. Reitter [printed] // Sapr. perrisi / Mars. / G Dahlgren det. [printed-written] // Monotypus 1904 / Saprinus / pseudognathoncus / Reitter [red-framed printed-written]’ ( HNHM).

Additional material examined. BULGARIA: Harmanli , 27.vi.1975, 4♀♀ 4♁♁, A. Olexa lgt .; Arkutino , vii.1972, 1 ♁ 1♀, A. Olexa lgt . KAZAKHSTAN: Ak-Say (Alma-Ata), 1.vi.1974, 1♁, A. Olexa lgt . TAJIKISTAN: Babatag , Bulbulchashma, 23.v.1974, 3 ♀♀, A. Olexa lgt . UZBEKISTAN: Kara Tepe (Samarkand), 28.vi.1976, 1 ♀ 3 ♁♁, A. Olexa lgt. ( TLAN) .

Redescription. Body length: PEL: 2.75–3.45 mm; APW: 0.875 –1.125 mm; PPW: 2.05–2.375 mm; EL: 1.75–2.15 mm; EW: 2.50–3.0 mm.

Body ( Figs. 318–319 View Figs ) roundly oval, moderately convex, body color dark brown to black, cuticle not metallic, elytral apex slightly rufous; legs, antenna and mouthparts rufous.

Antennal scape ( Fig. 322 View Figs ) darker than antennal flagellum, with sparse punctures with few short setae; club round, without visible articulation, with thick short yellow sensilla intermingled with sparser longer sensilla; sensory structures of antennal club ( Fig. 35 View Figs ) in form of two sensory areas on ventral side and five vesicles; one of them is larger than other four; vesicles arranged in two pairs on ventral and dorsal side respectively.

Mouthparts. Mandibles ( Fig. 88 View Figs ) densely punctate, lateral margins rounded, mandibular apex acute; subapical tooth on left mandible obtuse; labrum ( Fig. 53 View Figs ) sparsely punctate, shallowly depressed medially; labral fold ( Fig. 74 View Figs ) weakly developed; two labral pits present, with one seta arising from each; terminal labial palpomere elongated, its width about one-third its length; mentum sub-trapezoid, anterior angles slightly produced, anterior margin shallowly emarginate medially, with shallow median notch ( Fig. 117 View Figs ), with several long setae; disc of mentum with sparse short setae; cardo of maxilla laterally with several short setae; stipes triangular, with three longer setae; terminal maxillary palpomere elongated, its width about one-fourth its length, about 2.5 times as penultimate.

Clypeus ( Fig. 322 View Figs ) rounded laterally, with round punctures, separated about twice their own diameter; frontal, supraorbital striae absent; postorbital stria vaguely impressed; frontal disc flat, with regular round punctures, separated by about their own to several times their diameter; eyes convex, well visible from above.

Pronotum ( Fig. 318 View Figs ) conspicuously narrower than elytra; pronotal sides on apical half almost straight, thence slightly convergent forwardly, on basal fourth strongly convergent; apical angles blunt; marginal pronotal stria well impressed, complete; pronotal disc slightly convex, with slight lateral depressions, pronotal foveae absent, disc laterally covered with coarse punctures, punctation weakened medially; pronotal hypomeron smooth; scutellum small, well visible.

Elytral epipleuron with regular round dense punctation; marginal epipleural stria complete, continued along elytral apex as incomplete apical stria; marginal elytral stria well impressed, obliterated near elytral apex. Humeral elytral stria weakly impressed on basal third, someti- mes double; inner subhumeral stria present as short median fragment; elytra with four well impressed dorsal striae 1–4, in small punctures, all about the same length, reaching about half of elytral length apically; fourth dorsal elytral stria curved towards sutural elytral stria, but not connected with it; sutural elytral stria shortened on basal third and apical sixth, in round punctures, not continuous with apical elytral stria; between sutural elytral stria and elytral suture a row of minute punctures present. Elytral disc entirely punctate, on apical half punctures denser and coarser, separated by about their own diameter; on basal half the punctation much finer and sparser.

Propygidium almost completely exposed, transverse, with deep coarse punctures; pygidium with sparser oblong punctures separated by about their own diameter, becoming smaller and sparser apically. Sexually dimorphic species, female with deeply impressed curious pygidial sulci ( Figs. 162–167 View Figs ).

Anterior margin of median portion of prosternum ( Fig. 323 View Figs ) rounded, densely punctate; preapical foveae vaguely impressed, linked by vague transverse sulcus; prosternal process distinctly convex, with sparse punctures; lateral prosternal striae straight, parallel, terminating on twothirds of process’ length apically; carinal prosternal striae on prosternal apophysis subparallel, thence strongly divergent anteriorly, parallel, terminating in vague pre-apical foveae.

Anterior margin of mesoventrite ( Fig. 325 View Figs ) shallowly emarginate medially; discal marginal mesoventral stria well impressed, carinate; disc of mesoventrite flat, with sparse punctures separated up to several times their own diameter; meso-metaventral suture vaguely impressed; meso-metaventral sutural stria absent.

Intercoxal disc of metaventrite ( Fig. 325 View Figs ) with a shallow longitudinal median depression in male, disc medially almost smooth, along posterior margin several rows of scattered punctures present; lateral metaventral stria well impressed, carinate, straight, almost reaching metacoxa; lateral disc of metaventrite ( Fig. 324 View Figs ) with setiferous punctures separated about their own diameter; metepisternum + fused metepimeron ( Fig. 324 View Figs ) evenly covered with much coarser and denser punctation, punctures separated less than half time their own diameter; metepisternal stria deeply impressed.

Intercoxal disc of first abdominal sternite broad, lateral stria vaguely impressed; disc with dense punctation, becoming finer and sparser medially.

Protibia ( Fig. 326 View Figs ) slightly dilated, outer margin with about ten low teeth topped with short thin denticle, diminishing in size in proximal direction; setae of outer row regular, short; protarsal groove deep; anterior protibial stria shortened apically; setae of median row shorter but denser than those of outer row, terminating in several tarsal denticles; protibial spur well developed, bent, growing out from apical margin of protibia; outer part of posterior surface ( Fig. 326 View Figs ) obscurely variolate, separated from substrigulate median part of posterior surface by vague boundary and row of minute denticles present on basal half; posterior protibial stria complete, with tiny sclerotized setae turning into three inner posterior denticles; inner row of setae double.

Mesotibia ( Fig. 327 View Figs ) slender, outer margin with two rows of short denticles; setae of outer row regular, sparse, about as long as denticles themselves; median row of setae double, setae shorter but denser than those of outer row; posterior mesotibial stria almost complete; anterior surface of mesotibia coriarious-punctate; anterior mesotibial stria complete, terminating in two tiny sclerotized setae; mesotibial spur short; claws of apical tarsomere slightly bent, longer than half its length; metatibia slenderer than mesotibia, in all aspects similar to it, but denticles on outer margin even sparser.

Male genitalia. Eighth sternite ( Figs. 328–331 View Figs ) completely fused, laterally with dense rows of long setae, apically with large inflatable membrane (velum) ( Fig. 331 View Figs ); eighth tergite and eighth sternite not fused laterally ( Fig. 330 View Figs ); eighth tergite comparably short. Ninth tergite ( Figs. 332–333 View Figs ) conspicuously broader than small tenth tergite; spiculum gastrale ( Figs. 337–338 View Figs ) widely expanded on apical end, on basal end not expanded; basal end dilated from ventral view. Aedeagus ( Figs. 334–336 View Figs ) slender; basal piece of aedeagus rather long, ratio of its length: length of parameres 1: 2.10; parameres fused almost along their entire length with a small circular slit for ejaculatory duct of median lobe; aedeagus apically slightly curved ventrad ( Fig. 335 View Figs ).