Felisacus wangae, 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 : 154-156

Felisacus wangae , sp. nov.

Figures 7 , 10M , 13X, Y , 15M, 16N, O , 21

DIAGNOSIS: Recognized by the following combination of characters: pronotum yellow with three brown markings posteriorly; hemelytron with narrow brown marking along inner margin of corium, not extending toward R+M anteriorly (fig. 7); antennal segment I slightly widened; occipital region delimited only dorsally; vertex upraised; dorsal surface of labial segment I not elongate posteriorly (as in Namyatova et al., 2016: fig. 6E); right side of ventral wall of genital capsule widened (fig. 15M); right paramere with distinct outer and inner angles (fig. 13X); left paramere sickle shaped (fig. 13Y); sclerotization of ductus seminis around secondary gonopore twice as long as wide; vesica with irregularly shaped sclerite, bearing toothlike outgrowth and with small triangular spicule apically (fig. 10M).

DESCRIPTION: Male. Total length 4.6–4.7. COLORATION (fig. 7): Head: Yellow to pale brown, sometimes with dorsal surface brown; buccula brown anteriorly; clypeus brown apically or uniformly brown. Eye brown with reddish tinge. Labium: Segments I–III yellow, segment IV pale brown. Antenna: Segments I–II pale brown, segments III–IV brown to dark brown. Thorax: Pronotum yellow with pale brown anterior margin; humeral angles and medial longitudinal stripe pale brown or brown, sometimes only posterior part of that stripe distinct; mesoscutum and scutellum yellow, punctures between them pale brown; thoracic pleura yellow to pale brown with scent gland evaporative area yellow. Hemelytron: Mostly translucent; inner part of clavus opaque, yellow to brown; outer part of clavus whitish yellow; corium whitish yellow, with narrow pale brown or brown marking along inner margin of corium and base of cuneus, reaching R+M vein posteriorly; embolium whitish yellow, brown apically; cuneus whitish yellow; membrane pale brown anteriorly and whitish apically; membrane cell brown to dark brown. Legs: Coxae yellow; femora yellow, often reddish apically; middle and hind femora with reddish brown or brown marking in apical half; tibiae yellow with brown or dark brown longitudinal stripe at least basally; tarsal segment I yellow to pale brown, tarsal segments II–III brown. Abdomen: Pale brown, brown dorsally. SURFACE AND VESTITURE: Corium smooth with scarce punctures. Dorsum with suberect setae longer than antennal segment II diameter; antennal segment I with scarce suberect setae subequal to or longer than antennal segment II diameter; femora with suberect setae longer than antennal segment II diameter; abdomen clothed with short suberect setae. STRUCTURE AND MEASUREMENTS: Body ca. 3.8–4.0× as long as pronotum width. Head: Depression delimiting occipital region present only dorsally; distance between this depression and pronotum shorter than eye diameter; longitudinal sulcus on dorsal surface shorter than eye diameter; distance from eye to pronotum slightly longer than eye diameter, not swollen laterally; vertex ca. 1.4–1.5× as wide as eye, upraised. Labium: Reaching middle of mesosternum; segments I and II distinctly longer than wide, combined subequal to segment III; segment II not elongate dorsally (as in Namyatova et al., 2016: fig. 6E); segment IV as long as segment III. Antenna: Segment I slightly widened, ca. 1.2–1.4× as long as head width, ca. 0.8–1.0× as long as pronotum width; segment II ca. 1.6–1.7× as long as head width, ca. 1.1× as long as pronotum width; segment III slightly longer than segments II and IV. Thorax: Anterior part of pronotum shorter than posterior part; collar delimited; posterior part of pronotum slightly upraised; posterior margin of pronotum slightly concave; pronotum ca. 1.3× as wide as long and ca. 1.6–1.7× as wide as head; mesoscutum slightly exposed. Hemelytron: Area along inner margin of corium swollen; inner margin of cuneus convex (as in Namyatova et al., 2016: fig. 13E), outer margin of cuneus ca. 3× as long as base. Abdomen: Genital capsule rotated at very small angle relative to rest of abdomen. Genitalia: Genital capsule (fig. 15M) twice as long as wide; ventral wall ca. 1.5× as long as dorsal wall, its posterior margin smooth, semioval, without outgrowth, its apex placed medially; right side of genital capsule curved, left side not widened; paramere sockets more or less acute; distance between paramere sockets subequal to half of genital capsule width at base. Right paramere (fig. 13X) sickle shaped; apex concave posteriorly; medial part as wide as basal part, without setae, with outer margin convex and inner margin with slightly widened; outer angle distinct, inner angle distinct, without outgrowth(s) or swelling, bearing setae; basal part as long as rest of paramere. Left paramere (fig. 13Y) sickle shaped; apical part not flattened, without tooth or outgrowth on apical part; middle side slightly widened, without swelling or outgrowth(s); setae placed on middle part near outer margin. Aedeagus conjunctiva not sclerotized, secondary gonopore placed at base of vesical in repose; sclerite surrounding secondary gonopore twice as long as wide; vesica with two spicules; one of them very small, smooth; second one large, bearing toothlike outgrowths (fig. 10M).

Female. COLORATION (fig. 7): Head: Pale brown with clypeus and marking on buccula brown. Thorax: Similar to male, but medial stripe on posterior part of pronotum distinct only pos- teriorly, posterior angles brown; thoracic pleura pale brown with scent gland evaporative area yellow basally and brown apically. Hemelytron: Similar to male, clavus brown with brown margins, stripes on hemelytron brown. Legs: Similar to male, tibiae yellow with brown longitudinal stripe. Abdomen: Yellow to pale brown with brown areas. SURFACE AND VESTITURE: As in male. STRUCTURE AND MEASUREMENTS: Structure as in male. Genitalia (figs. 16N, O): Dorsal labiate plate wider than apodemes of second valvulae, with distinct striations, without membranous ridge medially; semicircular sclerite and sclerotized rings absent; lateral oviducts placed in posterior part, at distance from each other; spermathecal gland attached in posterior part, anteriorly to lateral oviducts; dorsal labiate plate with membranous semicircular lobe anteriorly, with tubercles only along posterior margin of posterior wall.

DISTRIBUTION: Borneo ( Sarawak, Kalimantan) (fig. 21).

HOST PLANTS: Unknown.

ETYMOLOGY: The species is name after Xiaojing Wang from Guo-Qing Liu’s laboratory (Nankai University) who spent the better part of a year at the University of New South Wales and helped us by translating species descriptions from Chinese.

DISCUSSION: The sole female specimen has glue on the dorsum, and segments II–IV are missing. Felisacus wangae is not similar to any species of the genus. It is the sister species of F. curvatus , as they both possess similar female genitalia with distinct striations (cf. fig. 16L, N), a broad right side of the genital capsule (cf. figs. 14J, 15M), and an apical sclerotized part of the ductus seminis twice as long as wide (cf. fig. 10E, M). Felisacus curvatus differs from F. wangae in the marking on the hemelytron broad (fig. 4), the labium only slightly surpassing the posterior margin of the prosternum, and the presence of two serrate spicules, bearing toothlike outgrowths (fig. 10E).

MATERIAL EXAMINED: Holotype: INDONE- SIA: Kalimantan Timur: Pasir Dist. : 4 km W

Lumut, Gunung Lumut, 1.46305 ° S 115.99815 ° E, 380 m, 15 Nov 2005, E. Gasso Miracle, light trap, 13 (00017870) ( NML). Paratypes: INDONE- SIA: Kalimantan Timur: Pasir Dist.: 4 km W Lumut, Gunung Lumut, 1.46305 ° S 115.99815 ° E, 380 m, 15 Nov 2005, E. Gasso Miracle, Light Trap, 1♀ (00017869) ( NML). MALAYSIA: Sarawak: Nanga Pelagus, 2.01666 ° N 112.93305 ° E, 07 Aug 1958 – 14 Aug 1958, T.C. Maa, 13 (00043874) ( BPBM). Nanga Pelagus nr Kapit, 2.01666 ° N 112.93305 ° E, 585 m, 07 Aug 1958 – 14 Aug 1958, T.C. Maa, 13 (00043875) ( 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.

FIGURE 16. A, C, E, G, I, K, L, N. Dorsal labiate plate of bursa copulatrix of Felisacus species B, D, F, H, J, M, O. Posterior wall of bursa copulatrix of Felisacus species The small scale is for F. curvatus and F. wangae, the large scale for all others.

FIGURE 21. Distribution of F. bradi.