Mecistostethus marseuli
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Ordo: Coleoptera
Familia: Histeridae
Genus: Mecistostethus
Name
Mecistostethus marseuli Caterino & Tishechkin & Dégallier, 2012 sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Type material
Holotype male: “GUYANE FR: Itoupé, Mont tabulaire alt. 600m, 3°1.38'N, 53°5.73'W, piège d’interception 3, 23 Mar 2010 SEAG leg.” / “Caterino/Tishechkin Exosternini Voucher EXO-00498” / “HOLOTYPE Mecistostethus marseuli Caterino, Tishechkin & Dégallier”; deposited in MNHN.
Diagnostic description
Length 2.0mm, width 1.5mm; frontal stria largely effaced, not prominently carinate; frons and epistoma with microsculpture; anterior submarginal pronotal stria absent; pronotum with >10 discal setae, scattered on disk in addition to submarginal row (Fig. 3D); lateral pronotal punctures absent; pronotal microsculpture more conspicuous at sides, lacking at base; prosternal striae absent; metaventral stria interrupted at middle (Fig. 4B); microsculpture at apex of elytra conspicuous; elytral stria 1 complete, with numerous setae; elytral striae 1 and 2 abbreviated at base; tegmen (Figs 6E–F) widest near apex, tapering in basal two-thirds, basoventral concavity well developed, occupying basal three-fifths, delimited by strong basolateral carinae and with conspicuous fine median keel; tegmen with strong ventral swelling just apicad midpoint; median lobe only about one-fourth tegmen length.
Distribution
This species is only known from the type locality, in southeastern French Guiana.
Etymology
This species is named for French entomologist Sylvain Auguste de Marseul (1812–1890), whose superb work on the family Histeridae remains almost unequaled to this day.
Original Description
- Caterino, M; Tishechkin, A; Dégallier, N; 2012: A revision of the genus Mecistostethus Marseul (Histeridae, Histerinae, Exosternini) ZooKeys, 213: 63-78. doi
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