CIMICICAPSUS POPPIUS A SEPARATE GENUS, WITH DESCRIPTION OF NEW SPECIES (HETEROPTERA: MIRIDAE)

Transcription

1 YUKINOBU NAKATANI National Institute for Agro-Environmental Sciences, Tsukuba CIMICICAPSUS POPPIUS A SEPARATE GENUS, WITH DESCRIPTION OF NEW SPECIES (HETEROPTERA: MIRIDAE) Nakatani, Y., Cimicicapsus Poppius a separate genus, with description of new species (Heteroptera: Miridae). Tijdschrift voor Entomologie 144: , figs [ISSN ]. Published 1 December The deraeocorine plant bug genus Cimicicapsus is considered as a separated genus, not a subgenus of Deraeocoris Kirschbaum. Three East Asian species of Cimicicapsus are reported, including a description of a new species C. miyakei from Amami Is., Ryukyus, Japan. Yukinobu Nakatani, Laboratory of Insect Systematics, Natural Resources Inventory Center, National Institute for Agro-Environmental Sciences, Kannondai, 3-1-3, Tsukuba, Ibaraki, , Japan; nakatany@niaes.affrc.go.jp Key words. Heteroptera; Miridae; Deraeocorinae; Cimicicapsus; Deraeocoris; new species; East Asian. Cimicicapsus Poppius, 1915a, originally established as a distinct genus, was recently demoted to subgeneric rank within Deraeocoris Kirschbaum, 1855 by Kerzhner & Schuh (1995). However, their treatment remains questionable because polyphyly of the genus Deraeocoris was frequently suggested (e. g. Schuh 1995) and its subgeneric classification is therefore problematic. In the present paper, three East Asian species of Cimicicapsus are reported, and the taxonomic status of the genus is discussed. All measurements are given in millimeters. Material examined, including types, is deposited in the National Institute for Agro-Environmental Sciences, Tsukuba, Japan, except for several specimens, where the name of depository follows the specimen s data. STATUS OF CIMICICAPSUS POPPIUS Kerzhner & Schuh (1995) treated Cimicicapsus as a subgenus of Deraeocoris based on the general resemblance of Cimicicapsus species and with other Deraeocoris species. However, Cimicicapsus exhibits quite different characters, which sufficiently isolate it from Deraeocoris: e. g. presence of paddle-like setae on tarsomeres III, which therefore have the appearance of the fossula spongiosa observed on apically on the tibia of Nabidae, semicircular left paramere with elongate process of sensory lobe, phallothecae with a large triangular plate. These characters are also considered to be synapomorphies shared with Apoderaeocoris Nakatani et al., 2000, which is one of the possible sistergroups of Cimicicapsus. Further, several characters, mainly observed on the genitalia, such as the asymmetrical phallotheca, the arrangement of vesical sclerites and the presence of furrows on basal vesicae, may indicate that Cimicicapsus is related to other deraeocorine genera, such as Dortus Distant, 1910 rather than to representatives of the genus Deraeocoris. Therefore, it seems appropriate to treat Cimicicapsus as a separate genus. Cimicicapsus Poppius gen. rev. Cimicicapsus Poppius, 1915a: 41. Type species: Cimicicapsus parviceps Poppius, 1915 [designated by Kerzhner 1993: 99]; Poppius 1915b: 83, Carvalho 1957: 56. [syn. by Kerzhner & Schuh 1995: 4]. Deraeocoris (Cimicicapsus): Kerzhner & Schuh 1995: 4, Kerzhner & Josifov 1999: 37. Deraeocoris: Schuh 1995: 601 (in part). Recognized by oval body covered with dense upright hairs; rather porrect head, setose compound eye, pronotum and hemelytra furnished with distinct punctures and densely hairy legs. This genus can be separated from Deraeocoris Kirschbaum by calli furnished with a hollow near each antero-lateral margin (fig. 4), dense paddle-like setae ventrally on the apical part of tarsomere III (figs. 5-7), and specific genital structure described below, and from Apoderaeocoris 253

2 TIJDSCHRIFT VOOR ENTOMOLOGIE, VOLUME 144, Figs Adults of Cimicicapsus spp. 1, C. parviceps, type, male; 2, C. koreanus; 3, C. miyakei sp. n., paratype, female. Nakatani et al., by the following characters: longer and more porrect head; dorsum densely covered with hairs; window-like structure of phallotheca. Description of genital structure Male. Left paramere semicircular; sensory lobe with an elongate protuberance; hypophysis flattened, apical part sparsely covered with minute setae. Vesica usually with four or five sclerites; dorsal membranous lobe well developed with field of spines; left side of vesica basally highly sclerotized with three longitudinal furrows and a complicated cavity. Phallotheca asymmetric; apex with a large plate; right side of apical part with window-like structure. Female. Sclerotized rings depressed, accompanied by a pair of dorsal labiate plates; bursa copulatrix laterally with a pair of lobal structures; a large sclerotized plate covering anterior region of bursa copulatrix. Note The genus Deraeocoris includes several species, which show some relationship with Cimicicapsus (e. g. D. montanus Hsiao, 1941, and D. alticallus Hsiao, 1941). However, since I have not examined the specimens of these species, I defer to recombine them here. Cimicicapsus parviceps Poppius comb. rev. (figs. 1, 8-14) Cimicicapsus parviceps Poppius, 1915a: 41, 2 [Taiwan]; Carvalho 1957: 56, Kerzhner 1993: 99. Deraeocoris (Cimicicapsus) parviceps: Kerzhner & Josifov 1999: 38. Deraeocoris parviceps: Schuh 1995: 616. Distinguished this species from all other congeners by the yellow-reddish brown dorsum, entirely pale antennal segment II and legs. Redescription Male. Body oval, yellow-reddish brown partly tinged with red, polished, densely clothed with yellow, upright and uniform hairs. Head yellowish brown, polished; apex of tylus slightly darkened; vertex 1.7 times as wide as an eye. Antenna yellowish brown, slender; segment II cylindrical; length of segments I-II (III and IV lost): 0.79, Labium yellowish brown, reaching middle of mesocoxa; apical half of segment IV darkened. Pronotum yellow-reddish brown with weakly infuscate lateral sides, distinctly punctate; pronotal collar smooth, but weakly polished; calli well elevated; basal pronotal width 2.8 times as wide as collar, slightly broader (1.04 times) than length of anten- 254

3 NAKATANI: Cimicicapsus a separate genus Figs Cimicicapsus spp. 4-6, C. koreanus; 7, C. miyakei sp. n. 4, Head and pronotum; 5-7, tarsi. nal segment II. Scutellum yellow-reddish brown with small pale parts on both lateral sides, impunctate, slightly elevated. Thorax beneath darker than dorsum; prosternum and ostiolar peritreme pale yellowish brown. Hemelytra yellow-reddish brown, distinctly punctate; embolium furnished with minute red patches irregularly; apex of embolium and mesal ⅔ of cuneus red. Membrane slightly tinged with yellow; vein red. Legs entirely pale yellowish brown except infuscate claws, densely setose; length of hind tibia and tarsus (because of mounting, femur cannot be measured): 2.13, 0.49; proportion of hind tarsomeres I-III as 19: 17: 20. Abdomen yellow-reddish brown, densely pubescent; segment IX enlarged, comprising half the length of abdomen; left side of anal opening with a distinct spine toward dorsum. Genitalia. Left paramere (figs. 8-10) semicircular with large and pointed protuberance of sensory lobe; apical part of hypophysis depressed but rather narrow, apically with a sharp process. Vesica with 4 sclerites and 2 fields of spines (fig. 13a-d); sclerite connected to base furnished with minute spines and a fin-like structure apically (a); spiculate sclerite thin (d); basal sclerotized region elongate. Right part of phallotheca extended apically; apex with a rounded plate (fig. 14). Dimensions. Body length 5.3; head width 0.9; vertex width 0.4; basal pronotal width 2.0, maximum width across hemelytra 2.5. Distribution Taiwan. Note Poppius (1915a) noted that the type material comprises two female specimens. However, one type specimen which I borrowed from DEI (Deutiches Entomogisches Institut, Eberswarde) was found to be a male, and examination of the other one was not possible. Therefore, I refrain form a lectotype designation at the present time. Material examined. TAIWAN: 1 (syntype) Kankou, Koshun, iv-v. 1912, H. Sauter (DEI). Cimicicapsus koreanus (Linnavuori) comb. n. (figs. 2, 4-6, 15-20) Deraeocoris koreanus Linnavuori, 1963: 73, [North Korea], Miyamoto 1988: 637, Miyamoto & Yasunaga 1989: 158, Schuh 1995: 611, Nakatani & Ozaki 1997: 13. Deraeocoris (Deraeocoris) koreanus: Josifov 1983: 83, Yasunaga et al. 1993:

4 TIJDSCHRIFT VOOR ENTOMOLOGIE, VOLUME 144, Figs Male genitalia of C. parviceps, type. 8-10, Left paramere; 11-12, right paramere; 13, vesica, a-d indicate vesical sclerites; 14, phallotheca. Scale = 0.3 mm Figs Male and female genitalia of C. koreanus. 15, Left paramere; 16, right paramere; 17, vesica, a-e indicate vesical sclerites; 18, phallotheca; 19, dorsal aspect of bursa copulatrix, membranous part dissected; 20, ditto, anterior aspect. Abbreviations: sr = sclerotized ring; ar = anterior ramus. Scale = 0.3 mm. 256

5 NAKATANI: Cimicicapsus a separate genus Figs C. miyakei sp. n., genitalia of male holotype and female paratype. 21, Left paramere; 22, right paramere; 23, vesica, a-e indicate vesical sclerites; 24, phallotheca; 25, dorsal aspect of bursa copulatrix, membranous part dissected; 26, ditto, anterior aspect. Scale = 0.3 mm. Deraeocoris (Cimicicapsus) koreanus: Kerzhner & Schuh 1995: 4, Kerzhner & Josifov 1999: 38. Recognized by the uniformly reddish brown dorsum, except for red cuneus and narrowly pale lateral sides of scutellum. Linnavuori (1963) compared this species with Deraeocoris montanus Hsiao, from which it can be separated by the short antennal segment II (shorter than basal pronotal width). Dimensions ( / ). Body length / ; head width / 1.0; length of antennal segment I 0.69/ 0.70, II 1.79/ 1.86, III 0.69/ 0.76, IV 0.61/ 0.63; basal pronotal width / 2.2, maximum width across hemelytra / ; length of hind femur 1.76/1.90, tibia 2.23/ 2.44, tarsus 0.44/ Distribution Korea, Japan (Honshu, Shikoku, Kyushu). Biology Both adults and nymphs of this species are found on the leaves of Quercus acutissima Carruthers (Fagaceae) for July to August in Japan. The adults are also found on flowers of various plants. Material examined. 19, 14 JAPAN: Honshu: 1, Saitama Pref. (SU: Saitama University, Urawa); 1, Gifu Pref.; 1, Aichi Pref. (NSMT: National Science Museum, Tokyo); 1, 2, Mie Pref.; 1, Shiga Pref.; 1, 4, Nara Pref.; 1, Wakayama Pref.; 11, 1, Hyogo Pref.; 1, 1, Hiroshima Pref. Shikoku: 5, 2, Kochi Pref. Cimicicapsus miyakei sp. n. (figs. 2, 7, 21-26) Type material. Holotype, Kinsakubara, Naze City, Amami Is., Kagoshima Pref., 29.vi-3.vii. 2000, Y. Nakatani. Paratypes: 38 and 24 : 28, 16, same data as Holotype, 1, 20. vi. 1998, H. Miyake, same locality; 4, 4, Ashitoku, Tatsugo Town, 2.vii.2000, Y. Nakatani; 2, Forestry Park, Tatsugo Town, 1.vii.2000, Y. Nakatani; 4, Santaro Pass, Sumiyo Vil., 30.vi.2000, Y. Nakatani; 1, 2, Sumiyo Vil., at light, 29.vi-2.vii.2000, Y. Nakatani. Recognized by densely hairy and dark body. Separated from C. koreanus by the coloration, shape of the vesical sclerites (sclerite on dorsal membranous lobe distinct [fig. 23e]; basal ⅔ of spiculate sclerite straight [d]), and shape of the sclerotized plate of anterior region of bursa copulatrix. 257

6 TIJDSCHRIFT VOOR ENTOMOLOGIE, VOLUME 144, 2001 Description Body oval, chestnut brown, polished, densely clothed with yellow, upright and uniform hairs. Head dark chestnut brown, polished; tylus dark brown; lateral sides of vertex narrowly, sometimes widely, pale; vertex 1.6 ( )/ 1.9 ( ) times as wide as an eye. Antenna yellowish brown, slender; segment I and apical 1/4 of II dark chestnut brown; segment II cylindrical, little tumid; length of segments I-IV ( / ): 0.63/ 0.60, 1.78/ 1.82, 0.69/ 0.76, 0.58/ Labium yellowish brown, reaching middle of mesocoxa; apical half of segment IV darkened; length of segments I-IV ( / ): 0.42/ 0.45, 0.39/ 0.43, 0.39/ 0.38, 0.48/ Pronotum entirely chestnut brown, sometimes posterior margin narrowly pale, distinctly punctate; pronotal collar smooth, polished; calli well elevated; basal pronotal width nearly three times (2.9 times) as wide as collar, slightly broader than length of antennal segment II (1.1 times). Scutellum chestnut brown, lateral margin somewhat pale, impunctate, slightly elevated. Thorax beneath dull black except brown prosternum; ostiolar peritreme pale yellowish brown. Hemelytra chestnut brown, distinctly punctate; mesal half of cuneus slightly tinged with red or darkened. Membrane brown with dark vein; pale spot adjacent to apex of cuneus. Legs pale yellowish brown, densely setose; brown ring at apical ⅓ of each femur, and apical to the ring and base of tibiae tinged with red; length of hind femur, tibia and tarsus ( / ): / , / , / 0.51; proportion of hind tarsomeres I-III ( / ) as 16/ 17: 12/ 14: 18/ 19. Abdomen dark chestnut brown or dark reddish brown; in male, segment IX enlarged, comprising half length of abdomen. Genitalia. Male: Left paramere semicircular with elongate protuberance of sensory lobe which is apically furnished with several spines (fig. 21); apical part of hypophysis depressed but rather narrow. Vesica with five sclerites (fig. 23a-e); sclerite on dorsal membranous lobe distinct (e); basal ⅔ of spiculate sclerite nearly straight (d); sclerotized region around gonopore consists of complicate cavities. Right part of apical phallotheca extended; apex with a large tonguelike plate (fig. 24). Female: Sclerotized ring (fig. 25) depressed. Anterior sclerotized plate of bursa copulatrix enlarge (fig. 26). Dimensions ( / ). Body length / ; head width / 1.0; vertex width 0.4/ 0.5; total rostral length 1.7/ ; basal pronotal width / , maximum width across hemelytra / Etymology Named in honor of Mr. Hidenobu Miyake (Wakayama Pref.), who collected and offered me the first specimen of this new species. Distribution Japan (Amami Is., Ryukyu) Biology This species may be associated with Castanopsis cuspidata Schottky (Fagaceae), on which many specimens were collected. Some individuals were also found on the flowers of several trees (e. g. Schima liukiuensis Nakai [Theaceae], Elaeocarpus sylvestris Loureiro [Elaeocarpaceae]). ACKNOWLEDGEMENTS I especially thank Dr. S. Miyamoto (Fukuoka City) and Assoc. Prof. T. Yasunaga (Hokkaido University of Education, Sapporo) for their kind advice and valuable suggestions. I am grateful to Assoc. Prof. T. Hirowatari (OPU: Osaka Prefecture University, Sakai) for his kind reading of the manuscript. My cordial thanks are due to the following individuals for offering specimens and/or kind assistance: Dr. Y. S. Bae (University of Inchon, Korea), Dr. R. Gaedike (DEI), Dr. I. M. Kerzhner (Zoological Institute, Russian Academy of Sciences, St. Petersburg), Prof. M. Hayashi (SU), Mr. H. Miyake (Wakayama Pref.), Mr. M. Takai & Mr. I. Yamashita (Kochi Agricultural Research Center, Nankoku), Dr. K. Temma (OPU), Dr. M. Tomokuni (NSMT) and Dr. T. Ueda (Chiiki-Kankyo-Keikaku Co., Takatsuki). REFERENCES Carvalho, J. C. M., A catalogue of the Miridae of the world. Part I. Arquivos do Museu nacional, Rio de Janeiro 44: Hsiao, T. Y., Some new species of Miridae (Hemiptera) from China. Iowa State college Journal of Science 15: Josifov, M., Beitrag zur Taxonomie der ostpaläarktischen Deraeocoris-Arten. Reichenbachia 21: Kerzhner, I. M., Notes on synonymy on nomenclature of Palaearctic Heteroptera. Zoosystematica Rossica 2: Kerzhner, I. M. & R. T. Schuh, Homonymy, synonymy and new combinations in the Miridae (Heteroptera). American Museum Novitates 3137: Kerzhner, I. M. & M. Josifov, Miridae Haln, In: B. Aukema & C. Rieger (eds.), Catalogue of the Heteroptera of the Palaearctic Region. Vol. 3, Cimicomorpha II. The Netherlands Entomological Society, 577 pp. Linnavuori, R., Contributions to the Miridae fauna of the Far East III. Annales Entomologici Fennici 29: Miyamoto, S., Some mirids new to Japan (Heteroptera: Miridae). Rostria 39: [In Japanese] Miyamoto, S., & T. Yasunaga, Hemiptera, Heteroptera. In: Hirashima, Y. (ed.), A check list of Japanese insects 1: Entomological Laboratory, Faculty of Agriculture, Kyushu University, Fukuoka. Nakatani, Y. & M. Ozaki, Records of Termatophylum 258

7 NAKATANI: Cimicicapsus a separate genus hikosanum and Deraeocoris koreanus (Heteroptera, Miridae) from Honshu, Japan Rostria 46: [In Japanese with English summary] Nakatani, Y., T. Yasunaga & M. Takai, New or little known deraeocorine plant bugs from Japan (Heteroptera: Miridae). Tijdschrift voor Entomologie 142: Poppius, B., 1915a. H. Sauter s Formosa Ausbeute: Nabidae, Anthocoridae, Termatophylidae, Miridae, Isometopidae und Ceratocombidae. Archiv für Naturgeschichte, Berlin 80A(8): Popius, B., 1915b. Zur Kenntnis der indo-australischen Capsarien. I. Annales Musei Nationalis Hungarici 13: Schuh, R. T., Plant bugs of the world (Insecta: Heteroptera: Miridae). Systematic catalog, distributions, host list, and bibliography. The New York Entomological Society, xii+1329 pp. Yasunaga, T., M. Takai, I. Yamashita, M. Kawamura & T. Kawasawa, A field guide to Japanese bugs, terrestrial Heteropterans (M. Tomokuni ed.). Zenkoku Noson Kyoiku Kyokai Publishing Co. Ltd., Tokyo, 380 pp. [In Japanese]. Received: 22 January 2001 Accepted: 5 June