Neomegatropis rubrimacula Chen, Wang & Zhang, 2024, sp. nov.

Neomegatropis rubrimacula sp. nov. Description. Body length: male (including tegmen): 10.5 mm (expect tegmen: 6.3 mm), female (including tegmen): 12.0 mm (expect tegmen: 6.5 mm); tegmina expanded: male: 18.2 mm, female: 20.4 mm. Body yellowish. Head including eyes narrower than pronotum (Figs 1, 5), smoothly oblong in profile view (Figs 3, 7). Vertex long, triangular, wide basally and narrow apically, extending extremely forward, far beyond anterior margin of eyes, approximately 4 times longer in midline than width of base, more than 1.5 times as long as length of pronotum and mesonotum combined at middle line; lateral margins distinctly elevated with many sensory pits and shallowly concave in middle in side view, disc deeply depressed, without median carina in dorsal view (Figs 1, 5); smoothly oblong in profile view, with a broader red longitudinal stripe in upper part and center part respectively (Figs 3, 7). Frons extremely narrow, with lateral margins almost closely apposed from base to apex, and only just slightly separated before frontoclypeal suture. Clypeus short, nearly triangular, median length less than one third length of frons, significantly wider than frons at apex, disc slightly elevated, with a distinct median carina and two indistinct lateral carinae. Rostrum somewhat short and thick, reaching only trochanter of middle leg, apical segment extremely short and apical margin truncate (Figs 2, 6). Eyes dark brown, nearly oval, recessed slightly in lower margin near front. Ocelli absent. Antenna red, more than half of length of vertex; first joint about as broad as long, second joint flattened, with sides straight, expanding distally, apical margin asymmetrically excavated, approximately 5.4 times longer than width of base, apex bluntly rounded (Figs 3, 4, 7, 8). Pronotum very short, anterior margin angularly convex, posterior margin still more deeply concave, median carina red and distinctly elevated, posterior margin deeply concave, with red color and a red mark behind eyes on lateral area; with a larger red mark at ventral margin of lateroventral lobes. Mesonotum large, about 11 times longer than length of pronotum in midline, disc elevated two thirds of anterior part but flat at posterior part, median carina slender and feeble, with a red stripe along it, lateral carinae obsolete except for two flange-like vertical eminences in middle; with a wide red stripe at lateral area near tegulae; mesopleuron red. Tegulae relatively large (Figs 1, 3, 5, 7). Tegmina overall yellowish and semihyaline, veins ochraceous, but most of veins at distal half of tegmina red colored due to sanguineous stripe on it; with a broad red band from base to apex along stem of Sc+R; moreover, with a short red macular or stripe at middle of radial cell and apex of medial cell respectively; in addition, with a red and slightly curved fascia from apical angle to middle of tegmen along inside of outer margin; besides, with a red semicircular stripe curved upward respectively along basal and apical part of claval suture (CuP) to middle of tegmen, in addition to these stripes or fascia, with a relatively big red spot at basal and middle section on clavus respectively; veins of tegmen yellowish brown at basal half except for ScP+R stem and veins at apical half. Tegmina narrow and long, narrow basally and expanding apically, anterior and posterior margins almost subparallel, apical margin oblique, anal angle slightly rounded, about 3 times as long as widest part. Sensory pits presented on vein CA. Basal cell elongate and broad. Vein ScP+R and vein MP beginning at almost same point, emitted from upper end of basal cell, common stem ScP+R and MP obviously shorter than basal cell length; ScP+R forked distinctly distad of CuA forking. RA slightly sinuate behind, separating from ScP and single; RP forked close to apex, at level of subapical line, with two terminals; a cross vein ir present between RA and RP at distal 1/5 of tegmina. MP branched at apical third of tegmen, at level of distad of ScP+R or basad of ScP+RA fork, MP 4 fused with MP 3 near apical part to form a common stem and then extending to posterior margin, with 4 terminals. Veinlet r-m present, veinlets ir and im formed into subapical line. CuA forking near basal third of tegmina, distinctly basad of ScP+R, then CuA 1 and CuA 2 fusing again near distal third of tegmina; cell 5 (= procubital cell) elongate and closed; common stem CuA 1+2 reaching posterior margin; veinlet icu distinctly oblique. Clavus opening, long and particularly narrow with apical portion, extending over middle of tegmina. Pcu fused with A 1 in middle of clavus; junction of claval veins almost at same level of CuA forking; common claval stem Pcu+A 1 attached to vein CuP at apical third of clavus, then extending, curved distad and connected to cross vein icu at claval apex (Figs 4, 8, 22). Hind wings without stridulatory plate on jugal margin, slightly shorter than tegmen; with color off-white and semitransparent, most of wing veins brownish but some red (Fig. 9). Legs slender and moderately long. Metatibiotarsal formula: 6-4-4 (Figs 12, 13). Abdomen with a longitudinal black stripe on middle dorsum and a longitudinal red stripe on both laterodorsal sides respectively (Figs 10, 11). Male genitalia. Anal tube broad and long, in lateral view, narrow at base and enlarged slightly outward on both sides of apex, raised in dorsolateral base, nearly trapezoid, in dorsal view, distinctly curved upward in a right angle near apical 1/3, with a nearly V-shaped chasm from basal center to apical part on dorsum, median deeply concave, anal opening located at basal third of anal tube just below chasm base; apical margin of anal tube linguiform and curved towards cephalad; epiproct short and small, paraproct large, nearly oblong, concaved in a V-shape at middle of apical margin; anal apodeme very developed, thick and subcylindrical, obviously expanded at apex and hidden under lingual protrusion with apical margin of anal tube (Fig. 23). Gonostylus long and broad, nearly oblong, with a slender and long transverse ridge on inside of middle, in profile, dorsal margin straight and slightly conically protruding near apex with many fine setae, ventral margin slightly protruding in middle, with a small conical process and many fine setae on inner side of eminence, apical margin rounded (Fig. 25). Aedeagus moderately wide and long, periandrium with lateral margins dorsally ridged and moderately inflated near middle, concave in middle, boat-shaped; aedeagus with flagellum curved toward dorsocephalad and divided into dorsal and ventral lobes, 2 long conical processes with rounded and slightly curved apex forming dorsal lobe, while ventral lobe in form of a parallelogram lamellar process, curved upward on both lateral sides, concave in middle as grooved, with a small U-shaped notch in middle of apical margin and three small spinules on each side of notch, dorsoapical angle rounded (Fig. 26). Female genitalia. Anterior connective lamina of gonapophysis VIII broad, more or less membranous, distinctly sclerotized and protruding outward near apex, with five small teeth in apical group and two large teeth in lateral group (Fig. 18), with a few fine setae on basal 1/2 of sclerotized portion; anterior fibula sclerotized and slender. Endogonocoxal process membranous and very developed, reaching same level with anterior connective lamina (Fig. 18), in lateral view, gradually narrowing from base to apical part, obviously broad and slightly protruded outside near base, with V-shaped furcation at apical 1/3 and sclerotized at lateral edges of fork; gonocoxa VIII approximately rectangular, posterior margin slightly protruding near apical part and anterior margin moderately concave at middle (Fig. 19). endogonocoxal lobe located at apex of gonocoxa VIII, big and conical, with many chalazae or verrucae on it. Gonapophysis IX triangular in ventral view, broadened near base, posterior connective lamina of gonapophysis IX narrowing from base to apex and fused at middle of basal 1/3, bearing a number of chalazae or verrucae along inside of lateral margin (Fig. 20); posterior connective lamina of gonapophysis IX in lateral view long and narrow, boat-shaped (Fig. 21); posterior fibula sclerotized and slender, relatively short, about two-thirds of length of posterior connective lamina of gonapophysis IX. Gonospiculum bridge moderately short and broad (Figs 20, 21). Gonoplac very developed, wide and large, in lateral view, subconical with apex peach-shaped, divided into two lobes and deeply hollowed inward near median area; sclerotized basally and obviously bulging to external side to form a longitudinal cylindrical prominence, membranous and translucent near apex, ventral apical margin straightly oblique; dorsal margin slightly arched, protruded in middle, with a relatively narrow and subsclerotized lamellar posterior process on inside of base, posterior lobe of gonoplac, lobe fused basally with gonoplac and curved ventrad apically; ventral margin with a shallow incision at middle with apical angle round (Fig. 28). Pregenital sternite strongly produced caudad in middle 2/ 3 in a broadly subangularly rounded lobe shaped as shown in figure, apical margin rounded, truncate, smoothly rounding into lateral margins, anterior margin with a semicircular depression in center, middle area largely dented and deeply concave, evident on both sides near apex (Fig. 11). Egg with orangish color, broad fusiform, length 1.12–1.16 mm, approximately 2.5 times longer than widest part. Respiratory horn off-white (Fig. 14) Type material. Holotype: ♂ (CAU), Jianfengling Mountain, Hainan Province, China, 14 December 1974, coll. Yang Ji-kun and Li Fa-sheng. Paratype: 1♀ (NWAFU), same data as holotype. Etymology. The specific epithet refers to the red markings on the tegmen and body. Remark. This species is significantly different from the currently known species of the tribe