Jocezia Dellape & Fuentes 2021, new genus
Creators: name: Dellapé, Gimena
name: Fuentes, Daniela
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pentatomidae
Jocezia

description: Jocezia Dellapé & Fuentes, new genus
Type-species: Jocezia inusitata Dellapé & Fuentes new species
Etymology: The genus name is the combination of the name and surname of our colleague, Prof. Jocelia Grazia, as a tribute to her many and valuable contributions to the knowledge of the Pentatomoidea. The gender is feminine.
Diagnosis. This genus is recognized from other genera of the Hypatropis group by a combination of the following features: apex of scutellum attaining to the anterior margin of connexivum of segment VI; corium with a discontinuous impunctate narrow strip visible on the anterior third and at the end of radial vein, extending to the end of the corium; connexivum covered by the forewings in the rest position; and males with the ductus seminis distalis sclerotized in the distal portion.
Description. Body oblong, flattened dorsoventrally. Coloration predominantly castaneous. Dorsal surface densely and almost uniformly punctate with dark brown to black punctures (Fig. 1A). Abdominal ventral surface more densely punctate than dorsal surface, punctures slightly smaller (Fig. 1B). Head in lateral view with mandibular plates in a higher level than clypeus. Dorsal surface of head with an impunctate area between eyes and ocelli, almost the size of an eye. Antenniferous tubercules with a lateral rhomboid spine. First antennomere not attaining apex of head (Fig. 1D). First and second antennomeres subequal in length, third subequal to fifth, and both longer than fourth; fourth antennomere slightly depressed dorsoventrally. Ventral surface of head with uniformly distributed punctures, more dense at bucculae. Bucculae with a small anterior tooth, rectilinear, weakly developed and tapering towards base of head. First labiomere contained between bucculae and covered by them in lateral view. Second labiomere shorter than third and fourth together. Labium ending between pro- and mesocoxae (Fig. 1B). Pronotum trapezoidal, anterior two thirds slightly declivent; densely and uniformly punctate. Cicatrices concolorous with the pronotal disc, delimited by punctures, and with few punctures at middle; 1+1 small pale yellow spots posterior to inner angles of the cicatrices (Figs. 1A, 1D). Anterolateral angles of pronotum with a small tooth (Fig. 1D). Anterolateral margins subrectilinear, slightly crenulated on anterior third. Humeral angles not protruding (Fig. 1A). Scutellum densely and uniformly punctate, basal angles with foveae, apex rounded reaching the anterior margin of connexivum of segment VI. Corium uniformly punctate, with a discontinuous impunctate narrow strip (srv) visible on the anterior third and at the end of radial vein, extending to the end of the corium, and with other impunctate narrow strip parallel to claval suture (scs). Apex of each radial vein with a small, pale yellow callus. Posterior angle of corium acute, reaching the connexivum of segment VI medially. Hemelytral membrane hyaline and infuscate, veins brown, some bifurcated (Fig. 1A). Pro-, meso- and metasternum dark brown, punctate and with a median longitudinal narrow pale strip bearing white setae (Fig. 1E). Mesosternum not carinate. Metasternum flattened. Peritreme spout-shaped, shorter than half the width of the metapleural evaporatorium. Evaporatorium dull and punctate (Fig. 1F). Coxae, trochanters and tarsi immaculate. Femora and tibiae with black dots at base of setae. Tibiae sulcate dorsally (Fig. 1B). Connexivum covered by the forewings in the rest position, with dark brown to black punctures, posterolateral angles of each segment with a small darker spot. Posterolateral angles of each connexivum almost rectilinear. Ventral surface of abdomen punctate, more densely punctate in a longitudinal strip at level of spiracles. Subcalloused pale-yellow small spots (s), ventral to spiracles, impunctate. Each trichobothrium separated by an imaginary line tangential dorsal to spiracles (Figs. 1B–C).
Male genitalic structures: pygophore quadrangular, external opening dorsoposteriorly; posterolateral angles rounded, slightly projected posteriorly. Ventral rim (vr) forming two layers: superior layer (sl) expanded in 1+1 conical anteriorly-directed projections (cp), on each side of proctiger; inferior layer (il) carinated, with 1+1 small tooth-like projections (tp) separated from each other; carina evanescent between the tooth-like projections (Figs. 2A–C). Proctiger (x), with a transversal carina (cx) in basal third; apex of proctiger rounded and slightly expanded (Figs. 2D–E). Parameres absent. Phallus almost as long as wide, flattened dorsoventrally. Articulatory apparatus (aa) with simple basal plates; dorsal connectives (dc) and processus capitati (pca) well-developed. Phallotheca (ph) broadly opened posteriorly; ventral face with 1+1 subparallel median processes, processus phallothecae 1 (pph1); and dorsal face with 1+1 small lateral processes, processus phallothecae 2 (pph2), near articulation zone with basal plates. Posterolateral angles of phallotheca slightly developed. Conjunctiva (cj) with two pair of well-sclerotized processes: one ventral, processus conjunctivae 1 (pcj1), in 1+1 digitiform arms; the other lateral, processus conjunctivae 2 (pcj2), in 1+1 stout structures dorsally curved at apex; a small tumescence (tu) dorsally to base of processus conjunctivae 2. Vesica (v) with a dorsal shield-like process, processus vesicae (pv) (Figs. 2F–K). Ductus seminis distalis (dsd) helicoidal and sclerotized distally (Fig. 2L).
Female unknown.
Distribution. Argentina: Corrientes.
Comments. Jocezia is related to Hypatropis, Amauromelpia, Luridocimex and Stysiana by the head in lateral view with mandibular plates in a higher level than clypeus, and the absence of parameres.
Jocezia can be distinguished from Luridocimex by the subrectilinear anterolateral margins of pronotum, the declivent head and pronotum, and the 1+1 tooth-like projections at inferior layer of ventral rim of pygophore. In Luridocimex, the anterolateral margins of pronotum are convex, the head and pronotum are not declivent, and the inferior layer of ventral rim of pygophore shows only a median tooth-like projection.
With Hypatropis and Amauromelpia, Jocezia shares the anterolateral subrectilinear margins of pronotum, and the 1+1 tooth-like projections at inferior layer of ventral rim of pygophore. The strongly sclerotized processus conjunctivae 1 of the phallus, similar to Stysiana and Amauromelpia, allow to distinguish Jocezia from Hypatropis. In this last genus the processus conjunctivae 1 of the phallus is barely sclerotized. Jocezia can be distinguished from Amauromelpia by the proctiger with an entire transversal carina, rather the 1+1 processes near middle length in Amauromelpia.
Finally, this new genus can be distinguished from Stysiana by the rectilinear anterolateral margins of pronotum, the connexivum covered by the forewings in the rest position and the ductus seminis distalis sclerotized in the distal portion. Stysiana shows convex anterolateral margins of pronotum, an exposed connexivum in dorsal view and a delicated ductus seminis distalis, character shared with Hypatropis, Amauromelpia, and Luridocimex. This last character in Jocezia, together with the scutellum attaining the anterior margin of connexivum of segment VI, the discontinuous narrow strip adjacent to the radial vein, the connexivum covered by the forewings in the rest position in dorsal view, and the abdomen with a more densely punctate longitudinal stripe at level of spiracles are all characters that differ from the other genera in the Hypatropis group and allows to discriminate this new genus.
description: Published as part of Dellapé, Gimena & Fuentes, Daniela, 2021, Jocezia, a new Carpocorini genus from the Neotropics (Heteroptera: Pentatomidae Pentatominae), pp. 503-509 in Zootaxa 4958 (1) on pages 504-505, DOI: 10.11646/zootaxa.4958.1.30, http://zenodo.org/record/4692353