Felisacus yasunagai, Namyatova & Cassis, 2016

Namyatova, Anna A. & Cassis, Gerasimos, 2016, Revision And Phylogeny Of The Fern-Inhabiting Genus Felisacus Distant (Insecta: Heteroptera: Miridae: Bryocorinae) Anna A. Namyatova And Gerasimos Cassis, Bulletin of the American Museum of Natural History 2016 (403), pp. 1-169 : 157-159

Felisacus yasunagai , sp. nov.

Figures 7 , 10O , 13 AB, AC, 15O, 21

DIAGNOSIS: Recognized by the following combination of characters: dark brown marking on corium distinctly C-shaped, reaching R+M anteriorly and posteriorly, anterior part of this marking inclined posteriorly (fig. 7); antennal segment II widened (as in Namyatova et al., 2016: fig. 8B), red; vertex flat dorsally (as in Namyatova and Cassis, in press: fig. 6E) and straight laterally; distance between transverse depression on head and pronotum longer than eye diameter; labium reaching posterior margin of metasternum; cuneus uniformly colorless; apical half of femora red; ventral wall of genital capsule with toothlike outgrowth posteriorly (fig. 15O); right paramere sickle shaped, without outgrowth on inner angle (fig. 13AB); apical part of left paramere with toothlike outgrowth apically and outgrowth on dorsal surface; and medial part of left paramere with distinct outgrowth (fig. 13AC); apical half of ductus seminis sclerotized, its apex hooked (fig. 10O).

DESCRIPTION: Male. Total length 3.3–3.5. COLORATION (fig. 7): Head: Mostly yellow with reddish markings. Eye brown with reddish tinge. Labium: Uniformly yellow. Antenna: Segment I red brown apically and often with yellow base; segments II yellow to brown, sometimes yellow, brown apically; segments III–IV yellow. Thorax: Anterior part of pronotum yellow to pale brown with reddish tinge or red; posterior part of pronotum uniformly dark brown; scutellum and mesoscutum uniformly dark brown; thoracic pleura dark brown, metepimeron whitish yellow; scent gland evaporative area whitish yellow. Hemelytron: Clavus opaque, brown anteriorly, whitish posteriorly with brown or reddish margins; corium, embolium, cuneus, and membrane mostly transparent, colorless; corium with brown to dark brown posterior angle and with C-shaped dark brown marking, reaching R+M anteriorly and posteriorly, anterior part of this marking inclined posteriorly; embolium brown apically; cuneus with yellow outer margin; membrane cell colorless. Legs: Coxae whitish yellow to yellow; femora whitish yellow to yellow basally and reddish apically, often with brown marking medially; tibiae brown basally and whitish yellow to yellow apically; tarsi whitish yellow to yellow. Abdomen: Whitish yellow, sometimes with brown markings. SURFACE AND VESTITURE: Corium with distinct punctation. Dorsum clothed with setae subequal to or shorter than antennal segment II diameter, those setae longer on head and posterior part of pronotum; antennal segment I clothed with suberect setae shorter than antennal segment II diameter; femora clothed with suberect setae longer than antennal segment II diameter; abdomen clothed with setae of different length. STRUCTURE AND MEASUREMENTS: Body ca. 3.9–4.2 × as long as pronotum width. Head: Transverse depression delimiting occipital region present only dorsally; distance between depression and pronotum longer than eye diameter; longitudinal sulcus on dorsal surface of head shorter than eye diameter; distance between eye and pronotum longer than eye diameter, not swollen; vertex ca. 1.8–2.1× as wide as eye, flat (as in Namyatova et al., 2016: fig. 6E). Labium: Reaching posterior margin of metasternum or slightly surpassing it, segments I and II shorter than width (as in Namyatova et al., 2016: fig. 6E), combined subequal to half of segment III; dorsal surface of segment II not elongate dorsally (as in Namyatova et al., 2016: fig. 6E), segment III shorter than ventral side of head; segment IV twice as long as segment III. Antenna: Segment I distinctly longer than head width, swollen (as in Namyatova et al., 2016: fig. 8B), ca. 1.3–1.6× as long as head width, ca. 0.7– 0.8× as long as pronotum width; segment II ca. 1.4–1.5× as long as head width, ca. 0.8× as long as pronotum width; segments III almost twice as long as segment II and twice as long as segment IV. Thorax: Anterior part of pronotum distinctly shorter than posterior part; collar distinct; posterior part slightly upraised; posterior margin of pronotum straight or concave; pronotum ca. 1.1–1.2× as wide as long and ca. 1.8–1.9× as wide as head; mesoscutum usually exposed. Hemelytron: Area along inner margin of corium swollen; inner margin of cuneus straight (as in Namyatova et al., 2016: fig. 13F), outer margin of cuneus twice as long as base. Abdomen: Genital capsule rotated left at almost right angle relative to the rest of abdomen. Genitalia: Genital capsule (fig. 15O) ca. 1.5× as long as wide; ventral wall ca. 1.5× as long as dorsal wall, with posterior margin of ventral not curved dorsally, with small toothlike outgrowth; right side of genital capsule folded, left side widened; paramere sockets distinctly acute; distance between paramere sockets ca. 0.15–0.2× as long as genital capsule width at base. Right paramere (fig. 13AB) sickle shaped; apex slightly concave; medial part narrower than basal part, without setae, outer margin of medial part convex, inner margin concave, with swelling; outer angle absent, inner margin present, swollen, without setae or outgrowth(s); basal part subequal to rest of paramere. Left paramere (fig. 13AC) apical part not flattened, with toothlike outgrowth apically and with outgrowth on dorsal surface; middle part with outgrowth at inner side, without setae. Aedeagus (general view as Namyatova et al., 2016: fig. 22M) conjunctiva membranous; vesica without spicules; apical half of ductus seminis sclerotized, secondary gonopore placed near phallotheca mouth in repose; ductus seminis hooked apically (Namyatova et al., 2016: fig. 10O).

Female. Total length 3.5–3.8. COLORATION, SURFACE, AND VESTITURE (fig. 7): As in male. STRUCTURE AND MEASUREMENTS: Structure as in male; body ca. 3.8–4.1× as long as pronotum width; vertex ca. 1.6–1.9× as wide as eye; antennal segment I ca. 1.2–1.4× as long as head width, ca. 0.6–0.7× as long as pronotum width; segment II ca. 1.3–1.5× as long as head width, ca. 0.6–0.8× as long as pronotum width; pronotum ca. 1.1–1.2× as wide as long and ca. 1.8–2.2× as wide as head. Genitalia: Dorsal labiate plate small and transparent, as wide as distance between apodemes of second valvula, without striations or membranous ridge medially; semicircular sclerite and sclerotized rings absent; lateral oviducts placed medially, close to each other, far from lateral margins of dorsal labiate plate (fig. 16K); dorsal labiate plate without distinct tubercles, with triangular membranous lobe posteriorly (as in fig. 16H).

DISTRIBUTION: Philippines (Luzon Is.) (fig. 21).

HOST PLANT: Unknown.

ETYMOLOGY: Species is named after Tomohide Yasunaga, who loaned us specimens of Felisacus from his collection.

DISCUSSION: Place of attachment of spermathecal gland could not be seen. Felisacus yasunagai is similar to Felisacus species with a developed C-shaped marking on corium, but those species differ in the anterior part of the C-shaped marking not inclined posteriorly; also the labium is shorter, varying from reaching the posterior margin of prosternum to the posterior margin of the mesosternum.

MATERIAL EXAMINED: Holotype: PHILIP-

PINES: Camarines Sur: Iriga Mt, 13.45416 ° N 123.45055 ° E, 26 Apr 1962, H.M. Torrevillas, 13 (00043225) ( BPBM). Paratypes: PHILIPPINES: Camarines Sur: Iriga Mt, 13.45416 ° N 123.45055 ° E, 26 Apr 1962, H.M. Torrevillas, 63 (00043212–00043217), 5♀ (00043220– 00043224) ( BPBM). Isarog Mt, 20 km E of Naga, 13.65805 ° N 123.37305 ° E, 550 m, 06 Apr 1963, H.M. Torrevillas, Light Trap, 1♀ (00043341) ( BPBM). Isarog Mt, Pili, 13.65805 ° N 123.37305 ° E, 600 m, 05 Apr 1965, H.M. Torrevillas, 13 (00043219), 1 sex unknown (00043226) ( BPBM). Mt. Isarog, Pili, 13.70805 ° N 123.75083 ° E, 800 m, 27 Apr 1965, H.M. Torrevillas, 13 (00043218) ( BPBM). Luzon: Salton Pass, Nueva Vizcaya, 15.11666 ° N 120.95 ° E, 915 m, 09 Apr 1968 – 10 Apr 1968, D.E. Hardy, 1♀ (00043342) ( BPBM). Misamis Oriental: Mt. Kibungol, 09 Apr 1960 – 18 Apr 1960, H.M. Torrevillas, light trap, 1♀ (00045817) ( BPBM).

Figures

FIGURE 7. Habitus of Felisacus species.

FIGURE 10. A, C–L, O, P. Apical part of aedeagus of Felisacus species B, E, M. Vesica of Felisacus species. N. Aedeagus of F.webbi.

FIGURE 13. Parameres of Felisacus species.