Ogmocoris Mayr, 1864

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, Arthropod Systematics & Phylogeny 78 (2), pp. 321-360 : 336-338

Ogmocoris Mayr, 1864

Ogmocoris Mayr, 1864: 908

Ogmocoris: MAYR 1866: 34 ; STÅL 1872: 30; LETHIERRY & SEVERIN 1893: 132; KIRKALDY 1909: 72; SILVA 1945: 596; COSTA LIMA 1947: 312; FERNANDES & GRAZIA 1998: 1058; FREY- DA- SILVA et al. 2002: 179– 185; SILVA et al. 2018: 432.

Ansa Walker, 1868: 548 . (syn. by STÅL 1872).

Type species. Atelocerus hypomelas Burmeister, 1835, by monotypy.

Diagnosis. Mandibular plates and clypeus subequal in length. Antennomere 2 shorter than first. Labium long, surpassing the middle of sternite 5. Ostioles elliptical. Conjunctiva with one pair of processes and two pairs of lobes: median and ventral lobes. Annular flanges conver-gent.

Redescription. Body elongate ( Figs. 8 A– B, 9A– B, 12A– B). Head: Head longer than wide, apex rounded ( Figs. 8A , 9A , 12A, D ). Mandibular plates as long as 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 shorter than 1, visible ( Figs. 8D , 9 A– B, 12D); antennomere 3 cylindrical, slightly flat-tened; antennomere 4 cylindrical, convex dorsally ( Fig. 18 Fiii). Bucculae tapering towards the base of head, not reaching its base. Labium long labium, surpassing mid-dle of sternite 5 ( Figs. 9C , 12C ); labiomere 1 lying en-tirely between bucculae, labiomere 2 flattened laterally, shorter than labiomeres 3 and 4 combined and labiomeres 3 and 4 uniformly entire. Thorax: Pronotum trapezoidal ( Figs. 8A , 9A , 12A, D , 21 A– B); anterolateral margins explanate, not reflexed and impunctate; posterior margin slightly convex. Mesosternal carina elevated, smooth; metasternal furrow shallow. Each ostiole of ESES ellip-tical, opening posterolaterally; periostiolar depressions present; each peritrema spout-shaped, occupying about 1/3 of the distance to lateral margin of evaporatorium; medial furrow of the each ostiolar peritreme long, occu-pying more than half of the length of peritreme; evapora-torium punctate, occupying more than half of meso- and metapleuron; anterolateral margin of each evaporato-rium rounded; evaporatorium on mesopleuron reaching its anterior and posterior lateral angles, and surpassing the limits of mesocoxal sutures ( Fig. 18J ). Metathoracic spiracle wide ( Fig. 18J , red arrow). Legs concolourous with abdominal venter ( Figs. 8B , 9B , 12B ). Length of femora and tibiae subequal; femora unarmed; tarsi 3-seg-mented. Scutellum longer than wide ( Figs. 8A , 9A , 12A ) and basal angles foveate. Corium longer than scutellum, surpassing apices of abdominal tergite 5. Membrane with veins linear. Hemelytra surpassing apex of abdomen. Abdomen: Connexivum exposed ( Figs. 8A , 9A , 12A , 21C – D ). Medial longitudinal groove on abdominal ven-ter reaching sternite 6 ( Figs. 8B , 9B , 12B ). Male terminalia ( Figs. 10 A– N, 12G – I): Genital cup broad, open dorsoposteriorly. Ventral rim forming two layers, inferior and superior layers of ventral rim, not separated by a ca-rina; area between layers excavated. Superior layer of ventral rim projected toward genital cup, developed lat-erally to segment X, not covering parameres. Segment X not carinate, with processes. Parameres well-developed. Female terminalia ( Fig. 11 A– C): Valvifers 8 convex. Valvulae 8 not visible. Laterotergites 8 lacking spiracles. Laterotergites 9 surpassing tergite 8 ( Fig. 11A ).

Distribution. Brazil: Amazonas, Rio de Janeiro and Par-aná ( Fig. 17 ).

3.2.5. Key to species of Ogmocoris

1 Outline of anterolateral margins of pronotum impunc-tate in dorsal view ( Figs. 8A , 9A , 21A ). Foveae on basal angles of scutellum relatively large, size equal to diameter of a compound eye ( Figs. 8A , 9A , 21C ). Sublateral margins of sternites lighter than of abdom-inal venter ( Figs. 8B , 9B – C , 21F ). Superior layer of ventral rim of pygophore with one pair of processes; lateral margin of each projection of superior layer of ventral rim notched ( Fig. 10 A– B). Segment X rec-tangular, with one process, medially ( Fig. 10I – K ). .. ....................................... O. hypomelas (Burmeister)

1’ Outline of anterolateral margins of pronotum punc- tate in dorsal view ( Figs. 12A,D , 21B ). Foveae on ba- sal angles of scutellum relatively small, size less than diameter of a compound eye ( Fig. 12A , 21D ). Sub- lateral margins of sternites concolourous with disc of abdominal venter ( Figs. 12B – C , 21G ). Superior layer of ventral rim without process; lateral margin of each projection of superior layer of ventral rim entire ( Fig. 12G – H ). Segment X ogival, with 1 + 1 tumes- cent processes basally ( Fig. 12H ). .... O. paranaensis ............................ Frey-da-Silva, Grazia & Fernandes

Figures

Fig. 8. Ogmocoris hypomelas (Burmeister, 1835) ♀, lectotype: A: dorsal; B: ventral; C: female terminalia; D: antenna and labels. Scale bars: A–B = 5.0 mm; C = 2.0 mm.

Fig. 9. Ogmocoris hypomelas (Burmeister, 1835) ♂: A: dorsal; B: ventral; C: lateral.Scale bars = 2.0 mm.

Fig. 12. Ogmocoris paranaensis Frey-da-Silva, Fernandes & Grazia, 2002 ♂, holotype: A: dorsal; B: ventral; C: lateral; D: head and pronotum; E: head, ventral view; F: labels; G–I: male terminalia: G: dorsal; H: posterior; I: ventral; Scale bars:A–C = 2.0 mm; D = 0.5 mm; G –H = 1.0 mm.

← Fig. 18. Representation and comparison of head and thoracic characters. A–C: head, dorsal view; D–E: head and prothorax, lateral view (antennomeres not showing due to edition of photo); F: schematic drawing showing the antennomeres; G–S: external scent efferent system; G–N: meso- and metapleura, ventral view; G: schematic drawing showing the parts of eses; O–S: SEM images of characters of eses of mestasternal glands. — (A, Fi, H): Hypanthracos meridionalis; (B, N): Mecocephala magna; (C): Paramecocephala foveata; (D, M): Tibraca limbativentris; (E, S): Hypatropis inermis; (Fii, I): Chimerocoris luridus; (Fiii, J): Ogmocoris hypomelas; (Fiv, K): Liscocephala fumosa; (Fv, L): Triunfus carvalhoi; (O): Glyphepomis adroguensis; (P): Paramecocephala fusca; (Q): Pedinonotus catarinensis; (R): Glyphepomis setigera; Scale bars: A–E, H–N = 0.5 mm; O–S = 100 μm.

Fig. 21. Comparative figure of Ogmocoris species, and some male genitalia characters. A–B: pronotum, dorsal view; C–E: hemelytra; F–G: abdomen, lateral view; H–K: male genitalia. — (A, C, F, H–J): Ogmocoris hypomelas; (B, D, G): Ogmocoris paranaensis; (E, K): Paramecocephala foveata; (I), Tibraca limbativentris. Scale bars:A–B = 1.0 mm; C–G = 2.0 mm; H –K = 0.5 mm.

Fig. 10. Ogmocoris hypomelas (Burmeister, 1835): A –C: male terminalia: A: dorsal; B: posterior: C: ventral; D– H: paramere: D: left paramere, original position; E– H: right paramere, different views; I–K: segment X, different views; L–N: male genitalia; L: dorsal; M: lateral; N: ventral. Scale bars: A–C = 1.0 mm; D– H: 0.5 mm; I–N = 0.25 mm.

Fig. 11. Ogmocoris hypomelas (Burmeister, 1835): A–B: female terminalia: A: posteroventral view; B: lateral view; C–D: female recep- taculum seminis and ausenwand. Scale bars = 0.5 mm.

Fig. 17. Map of geographical distribution. — Colors: yellow – Chimerocoris luridus sp.n.; purple – Hypanthracos meridionalis; red – Liscocephala fumosa sp.n.; green – Ogmocoris Mayr, 1864; blue – Triunfus gen. n.