Rhyparoclopius aokiae, Gil-Santana, Hélcio R., 2012

Gil-Santana, Hélcio R., 2012, Rhyparoclopius aokiae sp. nov., a remarkable Stenopodainae (Hemiptera: Heteroptera: Reduviidae) from Mato Grosso do Sul, Brazil, with taxonomical notes on other species of Rhyparoclopius Stål, Zootaxa 3478, pp. 93-104 : 95-98

Rhyparoclopius aokiae sp. nov.

( Figs. 6–38 )

Description. Male ( Figs. 6–30 ). Measurements (in mm): HOLOTYPE: Total length: 13.2; head: total length: 2.4; maximum width across the eyes: 1.35; anteocular length: 1.5; postocular length: 0.4; interocular space: 0.8; antennal segments: I: 0.9; II: 1.4; III: 0.5; IV: 0.6; rostral segments: I: 1.1; II: 1.2; III: 0.6. Thorax: pronotum: fore lobe length: 1.6; hind lobe: length: 0.8; width at posterior margin: 2.4; scutellum: length: 1.0; width at base: 0.75; hemelytra length: 3.7. Legs: fore legs: femur: 3.2; tibia: 2.6; tarsus: 0.8; mid legs: femur: 2.9; tibia: 2.9; tarsus: 0.7; hind legs: femur: 4.2; tibia: 5.1; tarsus: 0.9. Abdomen: length: 6.8; maximum width: 5.0. PARATYPE: Total length: 12.2; head: total length: 2.3; maximum width across the eyes: 1.35; anteocular length: 1.4; postocular length: 0.5; interocular space: 0.8; antennal segments: I: 0.7; II: 1.4; III: 0.4; IV: 0.55; rostral segments: I: 1.1; II: 1.2; III: 0.5. Thorax: pronotum: fore lobe length: 1.5; hind lobe: length: 0.7; width at posterior margin: 2.2; scutellum: length: 0.8; width at base: 0.65; hemelytra length: 3.0. Legs: fore legs: femur: 2.9; tibia: 2.6; tarsus: 0.8; mid legs: femur: 2.9; tibia: 2.7; tarsus: 0.65; hind legs: femur: 4.1; tibia: 5.2; tarsus: 0.9. Abdomen: length: 6.0; maximum width: 4.4. General color brownish to blackish with second segment of rostrum, except on apex, irregular spots on femora, a sub-basal and larger sub-apical rings on fore and middle femora, hind tibia, except on basis, which are brighter to yellowish; middle and hind tarsi somewhat brighter as well. Integument covered with bright erect bristles, curved and erect hairs ( Figs. 6–10 ). HEAD: first antennal segment with a long, erect conspicuous bristle at middle third of medial face; ocelli very small; eyes with erect short bristles. THORAX: hemelytra short, reaching apical portion of tergite III [second visible] or basal third of tergite IV, membrane glabrous; hind wings short. Scutellum with two lateral swellings covered with numerous yellowish hairs; basal mid portion moderately excavated; apex pointed ( Figs. 6–8 ). ABDOMEN: dorsal abdominal scent glands visible between tergites III–IV and IV–V; on distal portion of the latter, medially, a small tubercle covered with numerous pale hairs is present. Lateral posterior margins of tergites projected slightly, more pronounced on tergites V and VI; last tergite (VII) with two short rounded prominences laterally ( Figs. 6–7, 9–13 ). MALE GENITALIA: pygophore sub-rectangular ( Figs. 12–15 ), median process of pygophore triangular, not visible on ventral view ( Fig. 16 ). Parameres apices close to each other in resting position ( Fig. 15 ); symmetrical, moderately curved, covered with strong hairs on distal half, with a rounded apex, a keel on medial surface of approximately distal third, which ends as a rounded subapical protuberance; near the latter, on distal portion, a subspherical somewhat small structure is visible; a smaller round protuberance is present adjacent to basal portion of the medial keel ( Figs. 17–19 ). Phallus simple ( Figs. 20–21 ); articulatory apparatus with long pedicel ( Figs. 20–21 ); dorsal phallotheca plate somewhat subpentagonal ( Figs. 21, 24 ); basal plates struts larger in base, curved, connected apically ( Figs. 21, 24–26 ). Endosoma ( Figs. 21, 27–30 ) with a pair of basal processes which includes tooth-like structures ( Figs. 21, 27–28 ), in which distal portion is contiguous with other pair of processes formed by fine thickening of endosoma ( Figs. 21, 29 ); laterally to these, another pair of discrete elongated thickening of endosoma ( Fig. 21 ); at the apex of endosoma, a pair of rounded processes of conjunctive ( Fig. 30 ).

Female ( Figs. 31–38 ). Measurements (in mm): Total length: 13.2–14.0; head: total length: 2.5; maximum width across the eyes: 1.4–1.5; anteocular length: 1.5–1.6; postocular length: 0.6; interocular space: 0.8–0.9; antennal segments: I: 0.9; II: 1.3; III: 0.4; IV: 0.55–0.6; rostral segments: I: 1.0–1.1; II: 1.1–1.2; III: 0.6. Thorax: pronotum: fore lobe length: 1.5–1.6; hind lobe: length: 0.7–0.8; width at posterior margin: 2.4–2.5; scutellum: length: 0.9–1.0; width at base: 0.7–0.8. Hemelytra length: 2.8–3.3; Legs: fore legs: femur: 3.2; tibia: 2.8–2.9; tarsus: 0.7–0.75; mid legs: femur: 2.9–3.0; tibia: 2.8; tarsus: 0.7; hind legs: femur: 4.1; tibia: 4.8–5.3; tarsus: 0.9. Abdomen: length: 7.2–7.8; maximum width: 5.0 – 5.3. Similar to male; first antennal segment with a long, erect conspicuous bristle at middle third of medial face as well ( Figs. 33–34 ); lateral posterior margins of tergites less projected ( Figs. 31–32, 35 ); abdomen apex moderately rounded ( Figs. 31–32, 35 ). Female genitalia: gonocoxite and gonapophysis VIII, gonocoxite IX, and gonapophysis IX as shown in Figs. 36, 37 and 38 , respectively.

Type material: BRAZIL, Mato Grosso do Sul, Corumbá, Serra do Amolar (18° 05’S – 57°28’ W), holotype male, pitfall trap, 29.VII.2010, C. Aoki leg. [ MNRJ]; male paratype, baited pitfall trap, 31.VII.2010, C. Aoki leg. [ CTIOC]; female paratypes, baited pitfall trap, 30.III.2011, C. Aoki leg. [ MNRJ], [ CTIOC]; Miranda, Fazenda [Farm] Baía Bonita (20° 07’29.62”S – 56°42’12.97” W), paratype female, pitfall trap, 04.XII.2011 [ ZUFMS].

Etymology. The new species is named in honor of Camila Aoki for her important contributions in the study of entomological fauna in the state of Mato Grosso do Sul, Brazil.

Figures

FIGURES 6 – 11. Rhyparoclopius aokiae sp. nov., 6, male holotype, dorsal view, 7, male paratype, dorsal view; 8 – 11, male holotype, 8, pronotum, hemelytra and left hind wing exposed, 9, ventral view, 10, abdomen with eighth sternite and pygophore partially exposed, ventral view, 11, distal portion of tergite V, tergites VI – VII and pygophore partially exposed, dorsal view.

FIGURES 12 – 20. Rhyparoclopius aokiae sp. nov., male holotype, 12 – 13, apical portion of abdomen, eighth sternite and pygophore, ventral view, 12, schematic, 13, eighth sternite and pygophore partially exposed, 14 – 20, male genitalia, 14 – 15, pygophore, 14, ventral view, 15, dorsal view, 16, process of pygophore, dorsal view, 17 – 19, right paramere, 17, dorsal view, 18, ventral view, 19, apical half, ventral view, 20, phallus, lateral view.

FIGURES 21 – 30. Rhyparoclopius aokiae sp. nov., male holotype, genitalia, dorsal view, 21, phallus with expanded endosoma, 22 – 23, articulatory apparatus, basal portion, 24 – 26, dorsal phallotheca plate and struts, 25, basal portion, 26, apical portion, 27 – 30, endosoma, 27 – 28, right basal process of endosoma, 28, detail, 29, apical portion of basal processes, distal processes and basal portion of lateral processes of endosoma, 30, pair of rounded conjunctive processes at apex.

FIGURES 31 – 38. Rhyparoclopius aokiae sp. nov., female paratype, 31, dorsal view, 32, ventral view, 33, head, dorsal view, 34, right antenna, the arrow points to the long erect conspicuous bristle, 35, metasternum and abdomen, ventral view, 36 – 38, genitalia, 36, gonocoxite and gonapophysis VIII, 37, gonocoxite IX, 38, gonapophysis IX.