Oukhypencha ophthalmica ophthalmica ( Stål, 1863 ) Magnien, 2023

Magnien, Philippe, 2023, New genera, species and subspecies of tessaratomine true bugs (Heteroptera: Tessaratomidae, Tessaratominae), Zootaxa 5375 (4), pp. 533-549 : 538-540

Oukhypencha ophthalmica ophthalmica ( Stål, 1863) comb. nov.

( Figs. 4 , 20 , 29 )

Hypencha ophthalmica : Stål (1863) p 596

Specimen studied. holotype ♀, Ligor Malacca [Nakhon Si Thammarat, South Thailand] ( NHRS) .

Diagnosis. Medium sized Tessaratomina , characterized by the following set of characters: head very small, with eyes and ocellae relatively very large, antennae long, little more than half of habitus length; connexivum bicolourous; posterior ductus of spermatheca of even width on all its length save for striated dilation which is about 20 % wider than the ductus itself, ring sclerites conspicuous on the posterior wall of the vagina.

Description. Habitus: body of common pentatomoid shape ( Fig. 4 ), general hue bronze brownish above, coria of a lighter brownish, underside yellow-brownish, apex of scutellum and forepart of each connexivum segment yellowish.

Head. As in genus description; rostrum surpassing the anterior coxae by more than one third of mesosternum median length; eyes and ocellae large (ocular index 1.1, ocellar index 1.3)

Thorax. Pronotum densely punctate apart from callosities, less so along the posterior margin; anterior margins almost straight. Scutellum also densely punctate except apex. Corium overall densely, finely punctate. Sternum laterally densely punctate; evaporatoria small ( Fig. 19 ), reduced to narrow strips on both meso and metasternum; legs flavescent, femora with a black ring at apex, length of apical teeth of posterior femora little more than half its diameter, tibiae furrowed outside, with a black line on on either side of furrow.

Abdomen. Sternites almost umpunctate.

Female genitalia. Ring sclerites ovoid, anterior ductus short, about half the length of posterior, about as long as receptacle and intermediate part taken together; posterior ductus of even width on all its length, save for striated dilation which is about 20 % wider.

Measurements (mm); ♀ (type)—length 23,4; width 10.7; antennal articles length (4 th antennomere broken) (A1: 1.0, A2: 3.5, A3: 4.0).

Host plant. Unknown.

Distribution. Peninsular Thailand.

Figures

FIGURE 29: distribution map of Oukhypencha n. gn. and Homoiacoris n. gn.: ✦: Oukhypencha clemenceae n.sp.—⦿: Oukhypencha florenceae n.sp. △: Oukhypencha ophthalmica sumaterensis n.subsp.—▲: Oukhypencha ophthalmica s.str.—❀: Oukhypencha stali n. sp.—★: Homoiacoris annemarieae n. sp.

FIGURES 4–6: habitus.—4 Oukhypencha ophthalmica ophthalmica Stål ♀ (holotype); 5–6: Oukhypencha ophthalmica sumaterensis n. sp.—5: ♂ (holotype)—6: ♀ (paratype). Scale 10 mm

FIGURES 19–23: Oukhypencha, female genitalia, evaporatoria.—19–22: female genitalia.—23: evaporatoria.—19, 23: Oukhypencha clemenceae n. sp.—20: Oukhypencha ophthalmica ophthalmica—21: Oukhypencha ophthalmica sumaterensis— 22: Oukhypencha stali. Abbreviations: ad—anterior duct, ev—evaporatoria field, ip—intermediate part, o—ostiole, pd—posterior duct, pw—posterior wall of vagina, r—receptacle, rs—ring sclerite, sd—striated dilation All scales 1 mm.