Two new species of the genus Indolipa Emeljanov (Hemiptera, Fulgoromorpha, Cixiidae) from Yunnan Province, China, with a key to species

Abstract Two new species of Indolipa Emeljanov, 2001 (Fulgoromorpha, Cixiidae) from Yunnan Province, China, I. fugongensis Zhi & Chen, sp. nov. and I. longlingensis Zhi & Chen, sp. nov. are described. Color images for the adults of the two new species and line drawings for the genitalia are provided. In addition, a key to all known species of Indolipa Emeljanov is included.

Male genitalia. Pygofer (Fig. 1F, G) symmetrical, dorsal margin concave and Ushaped ventrally, widened towards apex and slightly convex in the middle; in lateral view, lateral lobes triangularly extended caudally. Medioventral process absent, replaced by two small projections. Anal segment (Fig. 1F, H, I) asymmetrical, in lateral view, dorsal margin almost straight, ventral margin convex in the middle, right lobe larger than left one and apical lobe extended ventrally; 2.2 times longer than wide in dorsal view; anal style finger-like, beyond anal segment. Gonostyli (Fig. 1F, G, J) symmetrical in ventral view; in inner lateral view, trapezoidal, apical margin transverse, base with a deep round excavation and a tusk-like tooth. Aedeagus (Fig. 1K-N) with total of four processes. Base of periandrium with a curved laminal process positioning slightly to right side of its ventral margin, apex acute, directed ventrocaudally. Endosoma broad, convoluted with two sinuations, a right lateral one (Fig. 1K) and a left lateral one (Fig.  1L). In the right lateral view, a large laminal structure with a ribbon-like process apically, directed left-ventrocephalically. In left lateral view, the base of endosoma with a spinose process, apex directed left-dorsocephalically; a spinose process arising from apical 1/3 of endosoma on the dorsal margin, apex directed right-caudally.
Female genitalia. Pregenital sternite ( Fig. 2A) with caudal margin slightly recessed, twice wider than long. Tergite IX ( Fig. 2A, C) moderately sclerotized, with a large nearly oval wax plate. Anal segment (Fig. 2B) nearly rectangular, 2.2 times longer than wide in dorsal view, anal style finger-like. Gonapophysis VIII (Fig. 2D) reduced, apex acute. Gonapophysis IX (Fig. 2E) extremely short, triangular. Gonoplac (Fig. 2F) strap-shaped. Posterior vagina as shown in Fig. 2G, H. In ventral view, left side with a nearly triangular sclerite, which with a triangular process at the base; right side with a large sclerite bent towards the dorsal surface and a small semicircular sclerite near terminal. In dorsal view, basal area with a process and an oblong sclerite, which with a triangular pouch-like structure basally.
Etymology. The species name is derived from Fugong County, Yunan Province, where the type locality is located.
Remarks. Male genitalia of I. fugongensis sp. nov. is similar to I. kurseongensis (Distant, 1911), but differs in: (1) the laminal process on the ventral margin of periandrium acute apically (in I. kurseongensis, the laminal process in the same position expanded apically); (2) in the right lateral view, base of endosoma without process (the latter with three processes); (3) left side of endosoma with two spinose processes (in I. kurseongensis, left side of endosoma with a S-shaped process and a Y-shaped process).  Description. Body length: male 5.3-5.8 mm (N = 23), female 6.2-6.7 mm (N = 25). Coloration. General color black (Fig. 3A-D). Eyes brown, ocelli yellowish brown. Vertex black. Face generally blackish brown, carinae and margins brown. Rostrum brown. Pronotum dark to blackish brown, carinae paler; mesonotum black. Forewing semi-translucent, pale brown, stigma brown. Hind tibiae and abdominal sternites blackish brown.
Male genitalia. Pygofer (Fig. 3F, G) symmetrical, dorsal margin concave and Ushaped ventrally, widened towards apex; in lateral view, lateral lobes trapezoidally extended caudally. Medioventral process absent, replaced by two small projections. Anal segment (Fig. 3F, H, I) asymmetrical, in lateral view, dorsal margin almost straight, ventral margin convex, right lobe larger than left one and apical lobe extended ventrally; 1.5 times longer than wide in dorsal view; anal style finger-like, beyond anal segment. Gonostyli (Fig. 3F, G, J) symmetrical in ventral view; in inner lateral view, thumbshaped, apical margin round, basal 1/3 with a deep round excavation and a tusk-like tooth. Aedeagus (Fig. 3K-N) with total of seven processes. Base of periandrium with a scoop-like laminal process positioning slightly to right side of its ventral margin, directed cephalad. Endosoma convoluted with two sinuations, a right lateral one (Fig.  3K) and a left lateral one (Fig. 3L). In the right lateral view, endosoma with a long ribbon-like process, apex slightly expanded and round, curving left-dorsocaudally; basal portion of the ribbon-like process with two short laminal processes, apex acute, directed ventrocaudally. In left lateral view, the base of endosoma with a strongly curved process, apex acute, directed dorsocaudally; a long rod-like process arising from basal 1/3 of endosoma on the dorsal margin, curving downwards, apex round, directed dorsally, base of the long process with an extremely short spinose process, apex directed dorsocaudally.
Female genitalia. Pregenital sternite (Fig. 4A) with caudal margin slightly convex in the middle, 2.3 times wider than long. Tergite IX (Fig. 4A, C) moderately sclerotized, with a large nearly oval wax plate. Anal segment (Fig. 4B) oval, 1.8 times longer than wide in dorsal view, anal style finger-like. Gonapophysis VIII (Fig. 4D) reduced, apex acute. Gonapophysis IX (Fig. 4E) comparatively short and thin. Gonoplac (Fig. 4F) strap-shaped. Posterior vagina as shown in Fig. 4G, H. In ventral view, left side with a nearly rectangular sclerite, which with a pouch-like structure at the base and terminal; in dorsal view, basal area with an irregular large sclerite, which with a process basally.
Distribution. China (Yunnan) (Fig. 5). Etymology. The species name is derived from Longling County, Yunan Province, where the type locality is located.
Remarks. Male genitalia of I. longlingensis sp. nov. is similar to I. huapingensis Luo, Liu & Feng, 2019, but differs in: (1) left side of endosoma with a long rod-like process at basal 1/3, which with an extremely short spinose process basally (the latter in the same position with a foliaceous process, which without spinose process basally); (2) ventral margin of endosoma without process (in I. huapingensis, ventral margin of endosoma with a tusk-like process); (3) forewing with 10 apical cells (the latter with 9 apical cells).

Discussion
The Chinese species Indolipa fopingensis, I. fugongensis sp. nov., I. gansuensis, I. huapingensis, I. kurseongensis, I. longlingensis sp. nov. and I. tappanus share a similar screwshaped aedeagus, and a similar basiventral process on the periandrium. We therefore believe that these species may be closely related. Based on the complex and variable geomorphological environment and rich biological resources in China, we expect that further new collections will increase the number of new records or species.