2018 ACTA ENTOMOLOGICA 58(2): 539–544 MUSEI NATIONALIS PRAGAE doi: 10.2478/aemnp-2018-0043 ISSN 1804-6487 (online) – 0374-1036 (print) www.aemnp.eu SHORT COMMUNICATION A new species of the genus Nenasa (Hemiptera: Fulgoroidea: Caliscelidae) from mainland China Vladimir M. GNEZDILOV Zoological Institute of the Russian Academy of Sciences, Universitetskaya nab. 1, 199034, Saint Petersburg, Russia; e-mails: [email protected], [email protected] Accepted: Abstract. The planthopper genus Nenasa Chan & Yang, 1994 (Hemiptera: Fulgoroidea: 14th November 2018 Caliscelidae) is recorded for the fi rst time from mainland China with Nenasa ouchii sp. nov. Published online: described from Fujian Province. A key to separate the new species from Nenasa obliqua Chan 26th November 2018 & Yang, 1994 is given. The fauna of Caliscelini from China is briefl y discussed. Key words. Hemiptera, Fulgoromorpha, Caliscelinae, Caliscelini, planthoppers, morphology, taxonomy, Oriental Region Zoobank: http://zoobank.org/urn:lsid:zoobank.org:pub:D02270BF-C1DE-479A-BA83-E5533A6D426D © 2018 The Authors. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Licence. Introduction wings were made using a Leica MZ 95 light microscope with a camera lucida. Photographs were taken using the The family Caliscelidae is a small group of planthoppers same microscope and a Leica DFC 290 camera. Images (Hemiptera: Fulgoroidea) distributed worldwide, with were produced using Helicon Focus 5.3 image stacking around 200 species in more than 70 genera classifi ed in two software and composed into plates using Adobe Photoshop subfamilies and fi ve tribes (GNEZDILOV 2013a). Caliscelidae CS6 software. inhabit different types of ecosystems and are known to feed The type specimens are deposited in the Alexander on grasses, including cane and bamboo (EMELJANOV 1969, Koenig Research Museum, Bonn, Germany (ZFMK). LOGVINENKO 1975, GNEZDILOV 2013b). Within Caliscelidae there are two main evolutionary trends – brachyptery and neoteny (GNEZDILOV 2015a). Taxonomy The caliscelid genus Nenasa Chan & Yang, 1994 was erected as monotypic for Nenasa obliqua Chan & Yang, Nenasa Chan & Yang, 1994 1994 endemic to Taiwan (CHAN & YANG 1994). The genus Nenasa Chan & Yang, 1994: 14. belongs to the subfamily Caliscelinae, tribe Caliscelini Type species. Nenasa obliqua Chan & Yang, 1994, by (GNEZDILOV 2013a). My study of unsorted Caliscelidae in original designation. the Alexander Koenig Research Museum in Bonn (Ger- Amended diagnosis. Metope wide, with distinct median many) discovered a male and a female of an undescribed and sublateral carinae. Median carina extending from species of Nenasa collected by Johann Friedrich Klappe- above middle of metope (near middle of compound eyes) rich in Fujian Province of China. through postclypeus. Sublateral carinae of metope exten- ding from its upper margin nearly to metopoclypeal suture. Material and methods Coryphe hexagonal, without carina. Forewings short, not Morphological terminology follows GNEZDILOV (2003) exceeding hind margin of third abdominal tergite, vena- and GNEZDILOV et al. (2014a). Male genital segments were tion obscure. Hind wings rudimentary. Legs not fl attened macerated for 1 min in boiling 10% KOH solution. Dra- or foliated. Gnezdilov.indd 539 26.11.2018 9:26:46 540 GNEZDILOV: A new species of Nenasa from China (Fulgoromorpha: Caliscelidae) Figs 1–8. Nenasa ouchii sp. nov. 1–4 – holotype male; 5–8 – paratype female. 1, 5 – dorsal view; 2, 6 – lateral view; 3, 7 – face; 4, 8 – labels. Gnezdilov.indd 540 26.11.2018 9:26:46 Acta Entomologica Musei Nationalis Pragae, volume 58, number 2, 2018 541 Nenasa ouchii sp. nov. tibiae brown to dark brown, with light yellow crossbands. (Figs 1–22) Tarsi yellowish brown, with dark brown claws. Apices of Type locality. China, Fujian (= Fukien) Province, Guangze (= Kwang- leg spines black. Abdominal tergites dark brown, with light tseh) County. yellow median line and lateral parts. Abdominal sternites Type material. HOLOTYPE: , ʻKwangtseh – Fukien / J. Klapperich 0 / 18.8 dark brown to black, with yellowish hind margins and large 1937 // Museum / Koenigʼ (ZFMK, dry-mounted on a pin and placed on yellowish spots laterally. Lower part of pygofer and styles a card, genital segments detached, stored in glycerine in a glass microvial basally light yellow. pinned under the specimen). PARATYPE: , ʻShaowu – Fukien / (500 m) Female (the specimen examined with soil particles on J. Klapperich / 15.7. 1937 // Museum / Koenigʼ (ZMFK, dry-mounted head and body including forewings). Metope dark brown, on a pin and placed on a card). with yellowish light brown areas and pustules (Fig. 7). Description. Coloration. Male. Metope and postclypeus Coryphe, pro- and mesonotum, and forewings dark brown yellowish brown frontally, with light yellow pustules (tra- (Fig. 5). Preocular fi elds yellowish light brown (Fig. 6). ces of larval sensory pits) (Fig. 3). Coryphe yellowish light Scapus dark brown. Pedicel dark brown, with yellow apex. brown (Fig. 1). Postclypeus laterally and anteclypeus dark Rostrum brown to dark brown dorsally and yellowish vent- brown to black. Preocular fi elds yellowish (Fig. 2). Genae rally, with dark brown to black band apically. Episternae dark brown to black. Scapus dark brown. Pedicel dark and epimerae of thorax black. Coxae and trochanters dark brown, with yellow apex. Rostrum dark brown dorsally brown, with yellow areas. Femora and tibiae dark brown, and yellowish ventrally, with dark brown band apically. with light yellow crossbands. Tarsi yellowish brown, with Pronotum yellowish light brown, with dark brown to black dark brown claws. Apices of leg spines black. Abdominal paradiscal fi elds. Paranotal lobes largely whitish light tergites generally dark brown to black. Tergite III with light yellow, dark brown to black below and behind eyes. Me- yellow lateral margins and tergites IV–VII each with two sonotum yellowish light brown, with dark brown to black light yellow pustules on each lateral side and two closely lateral parts. Forewings dark brown, each with large light situated light yellow carinae along midline (Figs 5, 12). Ab- yellow spot basally and light yellow inner margin (Figs 1, dominal sternites dark brown, with yellowish light brown 2). Episternae and epimerae of thorax black. Coxae and hind margins, each with yellowish brown areas medially trochanters dark brown, with yellow areas. Femora and and yellowish spots laterally. Sternite VII with yellowish Figs 9–14. Nenasa ouchii sp. nov. 9–11 – holotype male; 12–14 – paratype female. 9 – head, pro- and mesonotum, dorsal view; 10 – head, frontal view; 11 – rostrum, lateral view; 12 – mesonotum, forewings, and abdomen, dorsal view; 13 – anal tube, dorsal view; 14 – sternite VII, ventral view. Gnezdilov.indd 541 26.11.2018 9:26:47 542 GNEZDILOV: A new species of Nenasa from China (Fulgoromorpha: Caliscelidae) hind margin. Anal tube yellowish light brown medio-dor- margin of third abdominal tergite, venation obscure (Figs 1, sally and dark brown laterally. Pygofer dark brown, with 2). Hind wings rudimentary. Legs not fl attened or foliated. yellowish light brown areas. Gonoplacs yellowish light Hind tibia with single lateral spine in its apical third and brown proximally and dark brown distally. with 7 spines apically. First metatarsomere twice as long Structure. Male. Metope wide and fl at, with two rows as second one, with two latero-apical and one intermediate of pustules between lateral margins and sublateral carinae; spine. Second metatarsomere with only two latero-apical lateral margins almost straight; upper margin slightly spines. concave (Fig. 10). Metope with distinct median carina ex- Female. As mentioned for the male, except for more re- tending from above its middle through postclypeus across lief forewing venation and abdominal tergites IV–VII each metopoclypeal suture (Figs 3, 10). Sublateral carinae of with two carinae closely situated along midline (Fig. 12). metope distinct, extending from its upper margin to lower Male genitalia (Figs 15–22). Hind margins of pygofer metopial angles above metopoclypeal suture. Metopo- straight in lower two thirds, convex in upper third (Fig. clypeal suture distinct laterally, widely convex. Metope 18). Anal tube, in dorsal view, wide, almost rounded, with and coryphe, in lateral view, joined at right angle (Fig. 2). weak apical concavity (Fig. 22). Phallobase wide, in lateral Coryphe transverse, with pair of lateral concavities; hind view slightly curved (Fig. 15), asymmetrical (Figs 15–17); margin nearly straight (Fig. 9). Pedicel globular. Rostrum dorsal lobe wide, with deep notch (Fig. 16); ventral lobe reaching hind coxae; third segment short, half length of narrowing apically (Fig. 17). Aedeagus with two long second segment, cylindrical, not narrowing apically (Fig. ventral hooks, different in shape and length, curved and 11). Pronotum as long as coryphe medially, with distinct directed ventrally (Figs 15–17). Connective with a narrow median carina and two lateral carinae separating central cup and two deep lateral clefts (Figs 15, 19). Style with disc from paradiscal fi elds (Fig. 9). Paranotal lobes wide straight hind margin; caudo-dorsal angle right (Fig. 20); (Fig. 2). Mesonotum 1.5 times as long as pronotum, with capitulum of style long and narrow, narrowing apically median and lateral carinae. Forewings reaching only hind (Fig. 21). Figs 15–22. Nenasa ouchii sp. nov., holo- type, male genitalia. 15 – penis and con- nective, right lateral view; 16 –