Eremosaprinus vlasovi ( Reichardt, 1941 )

Lackner, Tomáš, 2010, Review of the Palaearctic genera of Saprininae (Coleoptera: Histeridae), Acta Entomologica Musei Nationalis Pragae (suppl.) 50, pp. 1-254 : 101-105

publication ID

https://doi.org/ 10.5281/zenodo.4272127

DOI

https://doi.org/10.5281/zenodo.4342079

persistent identifier

https://treatment.plazi.org/id/0385915E-FFFF-0945-60CC-FDD5CA65FD8A

treatment provided by

Felipe

scientific name

Eremosaprinus vlasovi ( Reichardt, 1941 )
status

 

Eremosaprinus vlasovi ( Reichardt, 1941) View in CoL

( Figs. 37 View Figs , 42 View Figs , 52 View Figs , 87 View Figs , 116 View Figs , 144 View Figs , 299–317 View Figs View Figs )

Gnathoncus (Erebidus) vlasovi Reichardt, 1941: 161 View in CoL , 170, 173, Figs. 74 View Figs , 83 View Figs .

Eremosaprinus vlasovi: Kryzhanovskij in KRYZHANOVSKIJ & REICHARDT (1976) View in CoL : 123, Figs. 165–169 View Figs View Figs ; MAZUR (1984): 107; MAZUR (1997): 216; MAZUR (2004): 91.

Type locality. Turkmenistan, Ashgabat.

Type material. PARATYPES: 1 spec., ‘Okr. [= surroundings of] Ashgabata [= Ashgabat] / Vlasov 26.iv.[19]31 [printed-written] // V glubine nory [= in the depth of a burrow of] / Rhombomys / opimus (written) // Gn. ( Erebidus ) / vlasovi , sp. n. Paratyp / Reichardt det. (printed-written) // Paratypus [red label, printed]’ ( ZIN); 1 spec., ‘Okr. [= surroundings of] Ashgabata [= Ashgabat] / Vlasov 8.iii.[19]31 [printed-written] // pri roskopke nory [= digging up the burrow; written] // Gn. ( Erebidus ) / vlasovi , sp. n. Paratyp / Reichardt det. [printed-written] // Paratypus [red label, printed]’ ( ZIN).

Additional material examined. UZBEKISTAN: Kyzyl Kum , Buchara, 28.–30.iv.1975, 1♁, A. Olexa lgt. TURK- MENISTAN: Ashgabat, Annau, 23.iv.1979, 1 ♁, A. Olexa lgt .; C Karakul Desert, Yerbent , 39°19'N 58°36'E, ex gerbil burrow, 10.–30.xi.1987, 1 spec., H. Atamuradov lgt GoogleMaps .; W Kopet-Dagh Mts. , km 64, rd. Kizil-Arvat-Kara-Kala, 1.–18.xi.1984, 1 spec., ex Meriones erythrourus burrow, 1 spec., H. Atamuradov lgt. ( TLAN) .

Redescription. Body length: PEL: 2.375–2.70 mm; APW: 0.925–1.00 mm; PPW: 1.825–2.00 mm; EL: 1.375 –1.775 mm; EW: 2.00– 2.25 mm.

Body ( Figs. 299–300 View Figs ) roundly oval, moderately convex, somewhat flattened from above, cuticle brown without metallic luster; legs, mouthparts and antennae rufous.

Antennal scape ( Fig. 302 View Figs ) thin, elongate, with two thin short setae; pedicel rectangular, elongate; club ( Fig. 301 View Figs ) elongated, without visible articulation, entirely with dense short sensilla, intermingled with much sparser somewhat longer sensilla; sensory structures of antennal club ( Fig. 37 View Figs ) in form of two differently sized sensory areas on ventral side of club and one large round vesicle situated under distal sensory area.

Mouthparts. Mandibles ( Fig. 87 View Figs ) regularly rounded, mandibular apex acute; sub-apical tooth on left mandible obtuse; labrum ( Fig. 52 View Figs ) depressed medially, sparsely punctate, with labral pits fringed with two setae; labral fold ( Fig. 42 View Figs ) weakly developed; mentum sub-trapezoid, anterior margin ( Fig. 116 View Figs ) with a tiny median notch, disc of mentum ( Fig. 304 View Figs ) substrigulate, with sparse minute setae; terminal labial palpomere elongate, its width about one-fourth its length; maxilla ( Fig. 144 View Figs ) with lacinial hook; cardo of maxilla with few short setae; stipes triangular, with three short setae; terminal maxillary palpomere elongate, its width about one-fourth its length.

Clypeus ( Fig. 302 View Figs ) large, rectangular, somewhat convex, rounded laterally, with shallow punctures separated by about their own to twice their diameter; frontal and supraorbital striae absent; postorbital stria complete; frontal disc densely punctate, punctures shallow, separated by about their own diameter; eyes moderately convex, visible from above.

Pronotal sides ( Fig. 299 View Figs ) on basal two-thirds moderately narrowing anteriorly, on apical third strongly narrowing anteriorly; apical angles blunt; marginal pronotal stria complete, somewhat weakened behind head; disc entirely punctate, punctation becomes coarser and denser laterally; pronotal base with ante-scutellar depression; scutellum very small, almost invisible.

Elytral epipleuron with deep scattered punctures of various sizes; marginal epipleural stria weakly impressed but complete; marginal elytral stria well impressed, carinate, shortly continued along elytral apex as shortened apical elytral stria. Outer and inner subhumeral striae absent; humeral stria vaguely impressed on basal fourth; elytral disc with five dorsal elytral striae 1–5 (fifth dorsal elytral stria present only as short apical fragment), not in punctures, rather thin, reaching about two-thirds of elytral length apically, occasionally fourth dorsal elytral stria slightly shortened basally, not connected with sutural elytral stria; sutural elytral stria shortened on basal fourth, apically stopping just short of elytral apex. Elytral disc with regular dense punctation, becoming sparser anteriorly, on elytral flanks and especially around scutellum, punctures separated by about 1.0–1.5 times their diameter, interspaces finely imbricate. Propygidium transverse, short; pygidium ( Fig. 306 View Figs ) about as long as broad; punctation of propygidium and pygidium fine, punctures round, small, separated by about their own to twice their diameter, interspaces with microsculpture.

Anterior margin of median portion of prosternum ( Fig. 305 View Figs ) straight; marginal prosternal stria anteriorly almost invisible, extremely thin; prosternal process laterally coriarious-punctate, dorsally smooth, flat, broad; carinal prosternal striae slightly sinuous, slightly carinate ‘open’ anteriorly; lateral prosternal striae absent; outer-lateral costa reaches prosternal process, its basal margin distinctly elevated.

Anterior margin of mesoventrite ( Fig. 309 View Figs ) almost straight; discal marginal mesoventral stria well impressed, somewhat weakened anteriorly; meso-metaventral sutural stria ( Fig. 309 View Figs ) sinuate, distanced from meso-metaventral suture; meso-metaventral suture vague, almost invisible; disc of mesoventrite flat, surface between discal marginal mesoventral stria and sinuate meso-metaventral stria with shallow scattered punctation, surface between mesometaventral sutural stria and meso-metaventral suture itself smooth.

Metaventrite somewhat convex, with scattered punctures of various sizes, becoming larger and denser in the area behind hind coxa and apical margin; lateral metaventral stria well impressed, carinate, almost straight, reaching hind coxa; lateral disc of metaventrite almost flat, with round deep large punctures; metepisternum + fused metepimeron with dense deep punctures.

Intercoxal disc of first abdominal sternite completely striate laterally; surface with sparse scattered round punctation, punctures separated by about 1.5–2.0 times their diameter.

Protibia ( Figs. 307–310 View Figs ) flattened and slightly dilated, anterior surface with complete anterior protibial stria; outer row of setae inconspicuous; setae of median row minute, sparse; outer margin explanate, with 14 small denticles growing out from posterior surface ( Fig. 310 View Figs ); protarsal groove deep; protibial spur tiny, growing out from apical margin of protibia; outer part of posterior surface ( Fig. 310 View Figs ) obscurely variolate, separated from median part of posterior surface by a vague line with one row of about eight minute denticles; median part of posterior surface finely substrigulate to smooth; posterior protibial stria complete, terminating in two tiny inner ventral denticles; setae of inner row well sclerotized, short.

Mesotibia slender, long, outer margin with two rows of short thin sparse denticles, outer and median rows of setae inconspicuous; posterior mesotibial stria complete; anterior surface coriarious-punctate; mesotibial spur short; apical margin of mesotibia anteriorly with two short inner ventral denticles; anterior mesotibial stria almost complete, terminating in two minute sclerotized setae; setae of inner row very sparse; tarsus (including claws) about as long as tibia itself; claws of apical tarsomere bent, longer than half its length; metatibia in all aspects similar to mesotibia, but outer margin ( Fig. 308 View Figs ) with even sparser denticles.

Male genitalia. Eighth sternite ( Figs. 311–312 View Figs ) longitudinally separated medially, on apical half widely separated, vela on distal margin with several rows of minute dense setae; apex laterally with sparse minute setae; eighth tergite and eighth sternite not fused laterally ( Fig. 313 View Figs ). Ninth tergite ( Figs. 314–315 View Figs ) divided longitudinally; tenth tergite ( Figs 314–315 View Figs ) apically with two minute setae; spiculum gastrale ( Fig. 314 View Figs ) widely expanded on apical end. Aedeagus ( Figs. 316–317 View Figs ) slender; basal piece of aedeagus short, ratio of its length: length of parameres 1: 3.75; parameres fused almost along their entire length with a small circular slit for ejaculatory duct of median lobe; aedeagus apically slightly curved ventrad ( Fig. 317 View Figs ).

ZIN

Russian Academy of Sciences, Zoological Institute, Zoological Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Histeridae

Genus

Eremosaprinus

Loc

Eremosaprinus vlasovi ( Reichardt, 1941 )

Lackner, Tomáš 2010
2010
Loc

Eremosaprinus vlasovi: Kryzhanovskij in KRYZHANOVSKIJ & REICHARDT (1976)

MAZUR S. 2004: 91
MAZUR S. 1997: 216
MAZUR S. 1984: 107
KRYZHANOVSKIJ O. L. & REICHARDT A. N. 1976: 123
1976
Loc

Gnathoncus (Erebidus) vlasovi

REICHARDT A. 1941: 161
1941
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