Liscocephala BARROs & Barão & Grazia 2020, gen.n
| Main Authors: | BARROs, Lurdiana D., Barão, Kim R., Grazia, Jocélia |
|---|---|
| Format: | info publication-taxonomictreatment Journal |
| Terbitan: |
, 2020
|
| Subjects: | |
| Online Access: |
https://zenodo.org/record/4362546 |
Daftar Isi:
- Liscocephala gen.n. Type species. Liscocephala fumosa sp.n., here desig- nated. Diagnosis. Antennomere 2 much reduced, less than 1/4 of the length of antennomere 1, hardly visible and an- tennomere 3 conical, flattened dorsally, longer than an- tennomere 5. Posterior margin of pronotum rectilinear. Scutellum longer than wide, post-frenal width of scutel- lum more than the basal width of the scutellum. Foveae smaller than the diameter of a compound eye. Coria longer than scutellum, not surpassing apices of abdomi- nal tergite 5. Metathoracic spiracle narrow. Valvifers 8 flat. Description. Body oval, small (total length: 8.55 mm) (Fig. 13 A– B). Head: Head longer than wide, apex rounded (Figs. 13A, 20C). Mandibular plates shorter than clypeus, apices obtuse; lateral margins sinuous. Clypeal apex obtuse, in a higher level than mandibular plates in lateral view; clypeal suture beginning after an imaginary line crossing anterior margin of compound eyes. Anten- niferous tubercles visible in dorsal view, each with an ob- tuse process laterally. Antennomere 1 not reaching apex of head; antennomere 2 much reduced, less than 1/4 the length of the first antennomere, hardly visible; antenno- mere 3 conical, flattened dorsally; antennomere 4 coni- cal, slightly flattened dorsally (Figs. 13D, 18 Fiv, 20G). Bucculae sinuous, tapering toward the base of head. First labiomere robust, lying entirely between bucculae, la- biomere 2 flattened laterally (Figs. 13D, 20E). Thorax: Pronotum trapezoidal (Figs. 13A, 20I); anterolateral margins explanate, not reflexed, impunctate; posterior margin rectilinear. Mesosternal carina elevated, smooth (Fig. 13E); metasternal furrow shallow. Each ostiole of ESES guttiform, opening posterolaterally; each peri- trema spout-shaped; medial furrow of the each ostiolar peritreme relatively long, extending more than half of the length of peritreme; evaporatorium punctate, occu- pying more than half of each meso- and metapleuron; evaporatorium on mesopleuron reaching its anterior and posterior angles, surpassing the limits of mesocoxal su- tures (Fig. 18K). Metathoracic spiracle narrow (Fig. 18K, red arrow). Femora longer than tibiae; unarmed femora; tarsi 3-segmented (Fig. 13C). Scutellum longer than wide (Figs. 13A). Basal angles of scutellum foveate; fovea rel- atively smaller than the diameter of a compound eye (Fig. 20K, red arrow). Corium longer than scutellum, extend- ing beyond apex of scutellum; apex of each radial vein punctate (inconspicuous callosity, Fig. 20K). Abdomen: Connexivum exposed (Fig. 13A). Sublateral margins of abdominal sternites not concolourous with abdominal venter (lighter than abdominal venter, Fig. 13C). Medial longitudinal groove reaching abdominal sternite 6 (Fig. 13F, red arrow). Female terminalia (Figs. 13F, 16A, C): Valvifers 8 flat. Valvulae 8 not visible. Valvifers 9 lev- eled, relative to the position of Xsegment Xin lateral view. Laterotergites 9 not surpassing tergite 8. Etymology. Lis, given in honour of Lis de Barros Borg- es, L. D. Barros’s daughter; “- cocephala ”, relative to the Mecocephala group; feminine. Distribution. Uruguay: Canelones (Fig. 17).
- Published as part of BARROs, Lurdiana D., Barão, Kim R. & Grazia, Jocélia, 2020, Systematics of the Mecocephala group (Hemiptera: Heteroptera: Pentatomidae) based on a phylogenetic perspective: Inclusion of Hypanthracos, description of three new genera, and redescription of Ogmocoris, pp. 321-360 in Arthropod Systematics & Phylogeny 78 (2) on page 343, DOI: 10.26049/ASP78-2-2020-07, http://zenodo.org/record/4360215