Three new species of the planthopper genus Oecleopsis Emeljanov, 1971 from China (Hemiptera, Fulgoromorpha, Cixiidae) Author Lv, Sha-Sha https://orcid.org/0000-0001-5353-5082 Institute of Entomology, Guizhou University, Guiyang, Guizhou, 550025, China Author Yang, Lin https://orcid.org/0000-0002-7841-5156 Institute of Entomology, Guizhou University, Guiyang, Guizhou, 550025, China Author Zhang, Yu-Bo https://orcid.org/0000-0002-6118-6190 The Provincial Special Key Laboratory for Development and Utilization of Insect Resources of Guizhou, Guizhou University, Guiyang, Guizhou, 550025, China Author Zhi, Yan https://orcid.org/0000-0003-1826-8139 Anshun University, College Agriculture, Anshun, Guizhou, 561000, China Author Zhang, Pei https://orcid.org/0009-0009-0251-0980 Laboratory Animal Center, Guizhou Medical University, Guiyang, Guizhou, 550025, China Author Chen, Xiang-Sheng https://orcid.org/0000-0001-9801-0343 Institute of Entomology, Guizhou University, Guiyang, Guizhou, 550025, China chenxs3218@163.com text ZooKeys 2024 2024-01-10 1188 251 264 http://dx.doi.org/10.3897/zookeys.1188.114008 journal article http://dx.doi.org/10.3897/zookeys.1188.114008 1313-2970-1188-251 8FA97BD5C39C46EFBC1475CA83A4F54A 49F9725D524853B786252AF806D5DB73 Oecleopsis panxianensis Lv & Chen sp. nov. Fig. 3A-N Type materials. Holotype : China • ♂; Guizhou Province, Panxian County, Banqiao Town; 25°44'N , 104°39'E ; sweeping, 2 July 2011; Zhi-Hua Fan leg.; IEGU. Paratype : 1♂, same collection data as for holotype; IEGU. Diagnosis. The salient features of the new species include: vertex (Fig. 3A, C ) at least three times as long as broad; frons (Fig. 3D ) yellowish brown, with brown spots; aedeagus (Fig. 3K-N ) in total with 3 processes; spinose process near apex of periandrium on right side (Fig. 3K ) long, half wide at base, half thinner at end; left side (Fig. 3L ) apical process of endosoma bifurcated, rami long, approximately equal length; a subapical spine, lateral margins curved. Figure 3. A-N Oecleopsis panxianensis sp. nov., male A habitus, dorsal view B habitus, lateral view C head and thorax, dorsal view D frons, ventral view E forewing F male terminalia, lateral view G gonostyli, inner lateral view H pygofer and gonostyli, ventral view I anal segment, dorsal view J anal segment, right lateral view K aedeagus, right side L aedeagus, left side M aedeagus, dorsal view N aedeagus, ventral view. Scale bars: 0.2 mm. Measurements. Total length: male 7.23-7.65 mm ( n = 2). Description. Coloration . General color dark brown (Fig. 3A, B ). Vertex blackish brown. Eyes brown, ocelli yellowish. Frons yellowish brown, with brown spots, carinae lighter; rostrum blackish brown. Pronotum grayish to blackish brown with carinae yellowish or light brown. Mesonotum dark brown, carinae brown. Forewings semitranslucent, light brown, with several brown markings, stigma yellowish brown. Hindwings semitransparent. Abdomen dark brown. Head and thorax . Vertex (Fig. 3A, C ) narrow, 3.23 times longer than wide. Frons (Fig. 3D ) with distinct median carina, longer in middle line than wide at widest portion (about 1.67:1). Clypeus (Fig. 3D ) with distinct median and lateral carinae. Rostrum elongate, surpassing hind-coxae. Pronotum (Fig. 3C ) wider than maximum width of head (including eyes) (1.60:1), lateral and median carinae present. Mesonotum (Fig. 3C ) about 6.92 times longer than pronotum in midline, with 5 carinae, distal part of median carina blurry. Forewings (Fig. 3E ) slender, longer than maximal width (3.01:1), with 12 apical and 6 subapical cells; fork ScP+R distal to fork CuA1+CuA2; RP 3 branches, MP1+2 3 branches, and MP3+4 2 branches. Male terminalia . Pygofer (Fig. 3F, H ) symmetrical, in lateral view, lateral lobes triangularly extended caudally; in ventral view, dorsal margin concave and U-shaped, middle part narrow. Medioventral process triangular in ventral view. Anal segment (Fig. 3F, I, J ) tubular, asymmetrical, widened towards apex in left side view; in right side view, left ventral margin convex and right ventral margin excavated near apex; 1.68 times longer than wide in dorsal view; anal style finger-like, beyond anal tube. Aedeagus (Fig. 3K-N ) in total with 3 processes; spinose process near apex of periandrium on right side long, half wide at base, half thinner at end, directed cephalically, more than 1/2 length of periandrium; left side apical process of endosoma bifurcated, rami long, approximately equal length, dorsal ramus directed cephalad, ventral ramus directed ventrocephalad; a subapical spine, lateral margins curved, curved dorsad, apical margin rounded. Gonostyli (Fig. 3F-H ) slender, curved apically, tapering into a process, constricted for about 3/4 its length, T-shaped in ventral view. Distribution. China (Guizhou) (Fig. 1 ). Etymology. The new species is named after its the county in which it was collected. Remarks. This species is similar to Oecleopsis laminatus Zhi & Chen, 2018, but differs from the latter in: (1) spinose process near apex of periandrium long, half wide at the base, 1/2 thinner at end (spinose process near apex of periandrium long, smoothly tapering at the end in O. laminatus ); (2) apical process of endosoma bifurcated at base (apical process of endosoma bifurcated at apex in O. laminatus ); (3) left side near apex of endosoma with a spiniform process, curved dorsad (left side near apex of endosoma with a large laminal process, directed cephalad in O. laminatus ).