Japanagallia trifurcata, Li, Hu, Dai, Ren-Huai & Li, Zi-Zhong, 2014

Li, Hu, Dai, Ren-Huai & Li, Zi-Zhong, 2014, Additions to Japanagallia Ishihara (Hemiptera, Cicadellidae, Megophthalminae) from Guizhou, and Yunnan Provinces, and Guangxi Autonomous Region, Southwest China, Zootaxa 3754 (2), pp. 133-147 : 143-146

Japanagallia trifurcata sp. nov.

( Figs 40–55 ; 56)

Body length (including tegmina). ♂, 3.8–4.0 mm; ♀, 3.9 – 4.3 mm.

Holotype description.

Head and thorax (color). Ground color yellowish brown, generally paler in females. Head with pair of elliptical black spots dividing crown into three equal parts, and with small brown macula medially. Face with similar pattern as in J. gracilenta sp. nov.. Pronotum with black transverse band on anterior margin, longitudinal band at middle, two black spots on sides of middle line, and lemon yellow transverse band on posterior and both lateral margins. Scutellum black, with lateral margins yellow brown. Basal half of forewings black, distal half yellowish brown, venations yellowish brown. Legs yellowish.

Morphology. Body slender. Face across eyes distinctively wider than long; end of anteclypeus slightly expanded, and projected beyond genae and lorae. Scutellum as long as pronotum. Claval veins connected by two cross veins.

Male genitalia: Pygofer ( Fig. 43 ), in lateral view, with small, scattered setae on distal half; posterior margin divided by posteroventral cleft with posterodorsal subtruncate section and rounded posteroventral lobe, spine-like. Valve broader than long, with front margin slightly concave, lateral margins sinuate; hind margin nearly straight, and narrower than anterior margin, lateral corners bluntly angled. Subgenital plates, elongate, triangular in ventral view, lateral margin slightly excavated, not fused to each other on basal part, with few scattered setae. Style ( Fig. 44 ), with short and stout stem, apex with indistinctive prominence; inner arm slender, moderately elongated, exceeding beyond stem, apex truncate and expanded. Connective ( Fig. 45 ), I-shaped. Aedeagus ( Figs 46–51 ), in lateral view, bearing dorsal apodeme widened robustly, rather quadrangular; preatrium well developed, elongated, bearing long process, trifurcated apically, longer than shaft; and with small process at base; shaft bent dorsally, ventral margin with pair of long and slender processes directed apically; sub apex of shaft broadening towards truncate apex; gonopore apical on ventral margin.

Female genitalia. Seventh sternite wider than long, hind margin excavated medially, both lateroposterior corners nearly rounded, ovipositor clearly exceeding pygofer. First valvulae ( Fig. 52 ), in lateral view, dorsally curved from base; ventral interlocking device on basiventral portion of shaft distinct; dorsolateral surface with reticulate sculptured area formed by oblique rows of scalelike processes ( Fig. 53 ) on distal 2/3 of shaft; ventroapical region with more scalelike processes, dorsoapical and ventroapical margins pseudodentate; apex subacute ( Fig. 53 ). Second valvulae ( Fig. 54 ), in lateral view, curved dorsally from base, with broadest region at apical fifth; with dorsal hyaline area present, located nearly on median portion; dorsal prominence conspicuously pronounced; teeth on apical half of dorsal margin, positioned behind dorsal hyaline area, uniform, mostly subtriangular, not bearing denticles ( Fig. 55 ); shaft apex subrounded ( Fig. 55 ). Gonoplacs, in lateral view, shoelike, with basal half narrow and nearly paralleled between dorsal and ventral margins, dorsal margin suddenly broadened on apical 2/5 and then narrowing gradually toward rounded apex; surface with tiny spiniform processes and several setae along ventral margin.

Intraspecific variation (based on all examined specimens). Pronotal black pattern varies among specimens examined; black transverse band on anterior margin, longitudinal band at middle, and two black spots on sides of midline sometimes separated from each other, and sometimes fused to each other. In male, trifurcated apex of preatrium process varies within several specimens.

Material examined. Holotype: ♂, CHINA: Guizhou Province, Anshun City, Longgong Town, 20. VII. 2005, collected by Yang Zaihua; Paratypes: 2 ♂♂, 11 ♀♀, CHINA: Guangxi Autonomous Region, Baise City, Tianlin County, LangpingVillage, 23–24. IV. 2012, collected by Zheng Weibin (n=6), Long Jiankun (n=5), Yang Weicheng (n=2); 1 ♀, CHINA: Guangxi Autonomous Region, Rongshui County, Yuanbaoshan Natural Reserve, 24. V. 2012, collected by Li Hu; 2 ♂♂, 2 ♀♀, CHINA: Yunnan Province, Yuxi City, Xinping County, Ailaoshan, 21–22. VII. 2012, collected by Zheng Weibin (n=2) and Chang Zhimin (n=2); 1 ♂, 5 ♀♀, CHINA: Yunnan Province, Honghe, Lvchun, Huanglianshan, 0 3. VIII. 2012, collected by Zheng Weibin (n=5) and Chang Zhimin (n=1); 2 ♂♂, 5 ♀♀, CHINA: Yunnan Province, Honghe, Jinping, Fenshuiling, 0 7. VIII. 2012, collected by Zheng Weibin (n=5) and Chang Zhimin (n=2); 14 ♂♂, 32 ♀♀, CHINA: Guizhou Province, Wangmo County, Dayi, 22–23. VIII. 2012, collected by Zheng Weibin (n=5) and Chang Zhimin (n=2).

Distribution. China (Guizhou, and Yunnan Provinces, and Guangxi Autonomous Region).

Remarks. Japanagallia trifurcata sp. nov. resembles J. curvipenis Viraktamath et al. but differs in having a basal pair of slender processes on the aedeagal shaft, the trifurcated aedeagal ventral process longer than the shaft, and the inverted H-shaped connective; it is also similar to J. gracilenta sp. nov. and J. viraktamathi sp. nov., but differs from J. gracilenta sp. nov. in having shaft processes and ventral processes on the aedeagus, from J. viraktamathi sp. nov. by the serrated caudal margins of the pygofer, the trifurcated longer ventral process of the shaft, absence of spines on the dorsal apodeme, and also the differently shaped connective.

Etymology. The species epithet, trifurcata , is derived from the Latin words “ tri -” and “ furcate ”, and refers to the trifid aedeagal process.

Figures

FIGURES 40 – 55. Japanagallia trifurcata sp. nov. Male: (40 – 41) Habitus: (40) dorsal, and (41) lateral views; (42) face; (43) genital capsule, subgenital plates, and anal tube, lateral view; (44) style, dorsal view; (45) connective, dorsal view; (46) aedeagus, lateral view; (47 – 50) apical intraspecific variation of ventral process of aedeagus, ventral view; (51) aedeagus apex, ventral view. (52 – 55) Female: (52 – 53) First valvulae of ovipositor, lateral view; (52) general view, and (53) apical portion. (54 – 55) Second valvulae of ovipositor, lateral view; (54) general view, and (55) apical portion in a higher magnification. DHA: dorsal hyaline area; DP: dorsal prominence.