Mitripus seclusus, Bianchi, Filipe Michels, Krein, Verônica, Rider, David & Grazia, Jocelia, 2021

Bianchi, Filipe Michels, Krein, Verônica, Rider, David & Grazia, Jocelia, 2021, Finding Padaeus bovillus (Hemiptera: Pentatomidae): A Phylogenetic Placement and the Description of Its Sister Species, Zoological Studies 60, No. 11, pp. 1-13 : 4-8

Mitripus seclusus sp. n. Bianchi, Krein, Rider and Grazia

( Figs. 1–5, Table 3 )

urn:lsid:zoobank.org:act:ECBED1B6-EC60-440D-A826- 89322D5F6674

Type Material: Holotype: ECUADOR: 1 male, Paramba, Ecuador / Coll. I. R. Sc. N. B, Equateur: Paramba, Ecuador ( UFRG) ; 1 female, Paramba, Ecuador / Collection Rosenberg / NMNH .

Etymology: The name is allusive to the seclusion among the authors while describing this species (L. seclusus : shut up, separated, recluse, seclude). Most of the intellectual work was made during the pandemic of COVID-19, with the authors respecting proper social distancing.

Diagnosis: Mitripus seclusus sp. n. may be distinguished from M. convergens and M. legionarius by each humeral angle developed laterally as a stout spine; from M. acutus by the clypeus being slightly longer than the mandibular plates, and the anterolateral margins of the pronotum entirely smooth; and from M. bovillus by the humeral angles not depressed anteriorly, and by the shape of the parameres ( Fig. 3).

D e s c r i p t i o n: C o l o r a t i o n: D o r s a l s u r f a c e ochraceous with black punctures, giving an overall dark brown matte aspect; antennae ochraceous ventrally and basally, brownish dorsally. Scutellum darker basally than apically. Connexivum brownish, middle third ochraceous. Ventral surface yellowish ochraceous; head and abdomen impunctate, thorax with brownish-yellow punctures. Legs ochraceous with reddish-brown spots on femora and tibiae; each femur with brownish ring at apex; apex of each tarsomere brownish.

Head: Clypeus slightly longer than mandibular plates, both rounded apically. Head tapering to apex, lateral margins of mandibular plates sinuous, concave near eyes. Ocelli red or yellow. Antennomere proportions: I <II <III ( IV and V lacking). Anterior margins of bucculae truncate with sharp projections, posterior margins evanescent. Gena flat. Rostrum reaching anterior margins of metacoxae.

Thorax: Anterolateral margin of pronotum smooth on anterior half, slightly sinuous; anterolateral angles developed as small yellowish-ochraceous spines, projected laterally. Each humeral angle produced laterally as a black stout spine. Pronotal cicatrices brownish, with an ochraceous spot posterior to each mesial angle. Basal angles of scutellum with small foveae. Apex of radial vein with a small ivory dot at endocorium. Membrane of hemelytra fumose, with subparallel veins. Evaporatoria each extending halfway from ostiole to metapleural lateral margin; surface impunctate, presenting gyrification near ostioles; lateral fold present; peritreme spout-like.

Abdomen: Each posterolateral angle of connexiva developed as a tiny black spine. Posterolateral angles of urosternite VII slightly projected as a spine. Spiracles concolorous with abdominal disc.

Male genitalia: Pygophore ( Fig. 3 A – C): In dorsal view, trapezoidal; genital cup not well exposed; each posterolateral angle of pygophore projected as a small triangle, rounded apically; median projection of dorsal rim short. Dorsal rim interrupted by diagonal depressions flanking median projection of dorsal rim; lateral margins slightly sinuous, discontinuous near median projection of dorsal rim; superior process of dorsal rim exposed, rectangular; ventral rim concave with a triangular projection at middle. In posterior view, genial cup opening ellipsoid; dorsal rim concave, smooth; superior process of dorsal rim long, bladelike; transverse ridge concave medially, U-shaped; inferior layer of ventral rim medially straight, tumescent laterally. In ventral view, ventral rim concave with a triangular projection at middle; posterolateral angles projected posteriorly, slightly bifid. Tenth segment: posterior margin trapezoidal with setae; disc smooth; tubercles on basal third slightly developed. Parameres ( Fig. 3 D – G): In dorsal and ventral view: each with basal apodeme smaller than crown; stem slightly smaller than crown; crown bending outward nearly at a 45° angle. Basal process of paramere narrow, rounded, with long setae; apical process of paramere enlarged basally, tapering towards truncate apex. In mesial and lateral views: apical process of paramere stout, triangular, with scale-like structures on its outer surface. Phallus ( Fig. 3 H – J): Phallotheca tubular, slightly constricted basally; ventral basal processes of phallotheca quadrangular; dorsal processes of phallotheca hook-like, bent ventrally in about 45°, short, not surpassing expanded conjunctiva; vesica process spout-like; conjunctiva lacking processes; ductus seminis distalis short, not exposed out of phallotheca.

Female genitalia: In posteroventral view ( Fig. 4 A), gonocoxites VIII with shallow punctures, concolorous with ochraceous disc; surface flat with a slightly depressed area near posterolateral margin; mesial margins straight, overlapping, with a brown spot apically; apex squared. Laterotergites VIII with black margins; apex spine-like. Gonocoxites IX trapezoid, about three times wider than long, anterior and lateral margins straight, posterior margin concave. Laterotergites IX rounded apically, mesial margins forming a right angle, lateral margins convex, slightly surpassing tergite VIII; segment X rectangular.

Distribution: Mitripus seclusus sp. n. is known only from Ecuador ( Fig. 5).