Saprinus (Hemisaprinus) subvirescens
Creators: name: Lackner, Tomáš
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Histeridae
Saprinus
Saprinus subvirescens

description: Saprinus (Hemisaprinus) subvirescens (Ménétriés, 1832)
(Figs. 10, 69, 103, 135, 643–659)
Hister subvirescens Ménétriés, 1832: 171.
Hister subvirescens: FALDERMANN (1835): 230.
Saprinus subvirescens: MARSEUL (1855):736; REICHARDT (1922): 50; REICHARDT (1941): 184, 240, Fig. 87; DAHLGREN (1968): 87, 93, Figs. 2G, 5A; KRYZHANOVSKIJ & REICHARDT (1976): 127, 183, Figs. 357–360; MAZUR (1984): 62; MAZUR (1997): 231; MAZUR (2004): 96.
Saprinus syriacus Marseul, 1855: 469. Synonymized by REICHARDT (1941): 240.
Saprinus viridulus Marseul, 1855: 468. Synonymized by DAHLGREN (1968): 87.
Saprinus foveisternus Schmidt, 1884: 9. Synonymized by AUZAT (1920): 3.
Type locality. Russia, Caucasus.
Type material. Saprinus subvirescens: Hol ot ype:spec., ‘ subvirens / Mén.Cauc (written) // Salian [red label, printed] // Holotypus [red label, printed] // round golden label’ (ZIN).
Additional material examined. ISRAEL: Adullam, 17.v.2002, 2 ♁♁, Y. Mandelik & V. Chikatunov lgt. TAJIKISTAN: Aruk Tau Mts., 20.iv.1978, 2 ♁♁, A. Olexa lgt. TURKMENISTAN: Ashgabat, Nisa, 21.iv.1975, 4 ♁♁, A. Olexa lgt. (TLAN).
Redescription. Body length: PEL: 2.25–3.00 mm; APW: 0.75–1.00 mm; PPW: 1.75–2.325 mm; EL: 1.50–1.925 mm; EW: 1.875–2.50 mm.
Body (Figs. 643–644) roundly oval, convex, cuticle pitch-black with greenish hue, shining; legs, mouthparts and antennae dark brown; antennal club black.
Antennal scape (Fig. 646) not particularly thickened, with shallow sparse punctures and two short setae; club round, without visible articulation, entire surface with dense short sensilla intermingled with sparser longer erect sensilla; sensory structures of antennal club (Fig. 10) in form of four ovoid sensory areas on ventral side and one vesicle situated under internal distal margin.
Mouthparts. Mandibles (Fig. 103) with rounded outer margin, laterally with deep dense punctures, moderately curved inwardly, mandibular apex apically pointed; sub-apical tooth obtuse, inconspicuous; labrum (Fig. 69) convex, densely punctate, anterior margin medially with a small convexity interrupting concavity; labral pits deep, each with two well-sclerotized long setae; terminal labial palpomere elongated, its width about one-third its length; mentum sub-trapezoid, anterior margin (Fig. 135) medially with deep notch surrounded with sparse short setae, lateral margins with single row of sparse shorter setae, several setae present also on disc of mentum; cardo of maxilla with few short setae; stipes triangular, with three short setae; terminal maxillary palpomere elongated, its width about one-fourth its length, approximately 2.5 times as long as penultimate.
Clypeus (Fig. 646) flat, constricted laterally, with coarse and dense punctures; frontal stria largely interrupted medially, for short distance prolonged onto clypeus, supraorbital stria well impressed, carinate; frontal disc (Fig. 646) with coarse and dense punctures; eyes convex, well visible from above.
Pronotal sides moderately (Fig. 643) narrowing anteriorly, apical angles obtuse, pronotal foveae vaguely impressed, anterior incision for head shallow, almost straight in middle; marginal pronotal stria complete; pronotal disc laterally with longitudinal depression, with very coarse and dense punctures, punctures become finer and sparser medially; row of ovoid punctures present along pronotal base; pronotal hypomeron glabrous; scutellum small, but visible.
Elytral epipleura with scattered fine punctures, area between marginal epipleural stria and elytral margin smooth; marginal epipleural stria fine, complete; marginal elytral stria straight, well impressed and slightly carinate, continued as weakened complete apical elytral stria; along marginal elytral stria row of round dense punctures present. Humeral elytral stria weakly impressed on basal third; inner subhumeral stria present as short median fragment; all four dorsal elytral striae 1–4 weakly impressed, short, not reaching elytral half apically, in shallow punctures; fourth dorsal elytral stria basally vaguely connected with sutural elytral stria; sutural elytral stria well-impressed and complete, in deep punctures, apically connected with apical elytral stria; entire elytral disc with punctation, punctures dense and coarse; along elytral margin, on elytral humeri and on interval between fourth dorsal and sutural elytral striae punctation weakens, extreme apex of elytra impunctate.
Propygidium and pygidium densely and coarsely punctate, punctures separated by about half their own diameter.
Anterior margin of median portion of prosternum (Fig. 648) almost straight; marginal prosternal stria present laterally and as short anterior fragment; prosternal process concave, surface between carinal prosternal striae with scattered fine punctation, laterally finely strigulate, punctures coarser and deeper; carinal prosternal striae well-impressed, parallel on prosternal apophysis, slightly divergent anteriorly, not connected apically; pre-apical foveae deep; lateral prosternal striae carinate, sub-parallel, apically terminating in pre-apical foveae.
Anterior margin of mesoventrite (Fig. 649) deeply emarginate medially; discal marginal mesoventral stria well impressed, carinate, slightly weakened medially; disc of mesoventrite with scattered punctation; meso-metaventral sutural stria marked as straight row of coarse punctures; intercoxal disc of metaventrite (Fig. 649) flattened (in male with median longitudinal excavation), with fine punctures, becoming coarser and denser along posterior and lateral margins (especially behind hind coxa); lateral metaventral stria (Fig. 650) well impressed, carinate, almost straight, shortened; lateral disc of metaventrite (Fig. 650) slightly concave, with dense shallow setiferous punctures; metepisternum with even denser and coarser punctation, punctures not setiferous; fused metepimeron with somewhat sparser punctures; metepisternum + fused metepimeron with metepisternal stria, interrupted on fusion between metepimeron and metepisternum.
Intercoxal disc of the first abdominal sternite laterally with incomplete stria; except for median part with coarse round punctures, becoming finer along posterior margin.
Protibia (Fig. 651) slightly dilated, outer margin with 5 moderately large triangular teeth topped with short rounded denticle, diminishing in size in proximal direction, followed by 4 tiny denticles; setae of outer row regular, rather short; protarsal groove deep, strigulate; anterior protibial stria complete apically; setae of median row about as long as those of outer row, becoming more sclerotized apically; two tarsal denticles present near tarsal insertion; protibial spur short, bent, growing out from apical margin of protibia; apical margin of protibia posteriorly with 3 tiny denticles abutting each other; outer part of posterior surface (Fig. 651) obscurely variolate, separated from glabrous median part of posterior surface by vague boundary and row of short sclerotized setae; posterior protibial stria complete, with a row of tiny sclerotized setae becoming thicker apically; inner row of setae double, setae dense and short.
Mesotibia slender, outer margin with two rows of short denticles; setae of outer row regular, dense, shorter than denticles; setae of median row regular, shorter and finer than those of outer row; posterior mesotibial stria almost complete; anterior surface of mesotibia (Fig. 645) strigulate-punctate; anterior mesotibial stria complete, terminating in single tiny inner anterior denticle; mesotibial spur short; apical margin of mesotibia anteriorly with two short denticles; claws of apical tarsomere slightly bent, shorter than half its length; metatibia slenderer and longer than mesotibia, in all aspects similar to it, but denticles on outer margin much sparser and claws of apical tarsomere slightly longer than half its length.
Male genitalia. Eighth sternite (Figs. 652–653) widely separated medially, covered with pseudopores, apically with numerous close-set setae forming a conspicuous apical brush, velum with dense much shorter and finer setae; apex fringed with single row of longer setae; eighth tergite and eighth sternite fused laterally (Fig. 654). Ninth tergite (Figs. 655–656) typical for the subfamily; spiculum gastrale (Fig. 655) widely expanded on apical end, on basal end only slightly expanded. Aedeagus (Figs. 657–659) slender; basal piece of aedeagus short, ratio of its length: length of parameres 1: 3.50; parameres fused almost along their apical three-fourths; aedeagus constricted apically, thence slightly dilated, curved ventrad (Fig. 658).
description: Published as part of Lackner, Tomáš, 2010, Review of the Palaearctic genera of Saprininae (Coleoptera: Histeridae), pp. 1-254 in Acta Entomologica Musei Nationalis Pragae (suppl.) (suppl.) 50 on pages 205-209, DOI: 10.5281/zenodo.4272127