Pedinonotus, Fernandes & Grazia, 2002

Fernandes, José Antônio M. & Grazia, Jocélia, 2002, Pedinonotus, a new southern Neotropical genus (Heteroptera, Pentatomidae, Pentatomini), Zootaxa 101, pp. 1-7 : 2-3

Pedinonotus gen. nov.

Etymology. From Greek, Pedinos­ flat, notus­ back.

Jugae longer than tylus, somewhat convergent before it. Jugae higher than tylus, hiding it in profile. Antenniferous tubercles with lateral rhomboid spine. First antennal segment not attaining apex of head. Bucculae evanescent. First rostral segment concealed by bucculae; segment II slightly shorter than III and IV together.

Anterior angles of pronotum not toothed. Anterior margin of pronotum emarginate. Humeral angles not developed. Sterna with narrow, medial row of white hair. Metasternum flat. Ostiolar rugae clavate, developed through 1/6 of the metapleural width. Evaporative area dark and finely punctured. Basal angles of scutellum foveate, apex rounded reaching connexival segment VI. Corium with two narrow stripes parallel to radial vein and another parallel to clavus, lacking punctures. Hemelytral membrane hyaline and infuscate. Femora, tibiae, coxae with piceous dots at base of hairs. Tarsi immaculate. Tibiae dorsally sulcated.

Connexivum exposed, with rough punctures and pale­yellow callused angles. One pair of trichobothria close to spiracles. Trichobothria separated by a longitudinal line tangent to spiracles.

Male. Pygophore trapezoidal, globose, and open dorsoposteriorly. Dorsal rim (dr) biconvex, not projected over genital cup. Ventral rim (vr) formed by two layers. The superior one (sl) with posterior margin biconvex forming posterior processes (ppsl) and expanded in 1+1 short arms (asl) directed dorsoanteriorly. Superior layer concave below posterior processes. Margin of inferior layer (il) with keel. Proctiger (pr) concave, basal third with tiny lateral processes (bpp), apex ogival in posterior view. Parameres (pa) small, truncate. Phallus slightly flattened dorsoventrally. Dorsal connectives (dc) of articulatory apparatus short, with broad capitati processes (cp). Phallotheca (ph) with lateral angles almost inconspicuous. Processus phallotheca (pph) ventral, digitiform, short, not reaching apex of processus conjunctivae 1. Conjunctiva (cj) broad and complex with two processes. Processus conjunctivae 1 (pcj1) ventral, digitiform, strongly sclerotized, lateral to processus phallotheca. Processus conjunctivae 2 (pcj2) laterad, digitiform, short, strongly sclerotized. Vesica (v) with U­shaped membranous collar between processus phallotheca. Processus vesicae (pv) shield­like. Ductus seminis distalis extremely long, spiral­shaped, delicate, usually not preserved after dissection.

Female. Gonocoxites 8 (gc8) convex, medial rim parallel. Laterotergites 8 (la8) without spiracles. Laterotergites 9 (la9) clavate, basal half concave. Gonocoxites 9 (gc9) trapezoidal, antero­lateral angles expanded as straight short arms reaching base of gonocoxites 8. Secondary thickening (st) of gonapophyse 9 (g9) partially hiding chitinellipsen (ch). Thickening of vaginal intima (tvi) conical. Vesicular area (va) longer than remaining parts of ductus receptaculi (dur). Annular crests (ac) parallel. Pars intermedialis (pi) with a narrow sclerotized ring at base. Capsula seminalis (cs) without projections.

Distribution: Brazil: Santa Catarina.

Comments: Pedinonotus belongs to a monophyletic group of 12 genera, whose phylogeny is under investigation (Frey­da­Silva, pers. comm.); two of these genera are Hypatropis and Tibraca Stal, 1860 both recently revised by Fernandes & Grazia (1996, 1998). Pedinonotus and Hypatropis ­group have a similar facies and share characters like body shape, jugae higher than tylus in profile, and first rostral segment concealed by bucculae. Pedinonotus also shares such characters with the Tibraca ­group as presence of paramere and ductus receptaculi short. Only a cladistic analysis will indicate the real position of Pedinonotus .