Macroscytus gibbulus
Creators: name: Lis, J. A.
Publisher: name: Zenodo
Year: 2000
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cydnidae
Macroscytus
Macroscytus gibbulus

description: Macroscytus gibbulus (ELLENRIEDER)
(Figs 131­135)
Hahnia gibbula ELLENRIEDER, 1862: 140; WALKER 1867: 170; STÃL 1876: 19; SIGNORET 1883a: 482; LETHIERRY & SEVERIN 1893: 71.
Macroscytus transversus, not of BURMEISTER: SIGNORET 1883a: 476 [part].
Macroscytus subaeneus, not of DALLAS: DISTANT 1901: 101 [part].
Macroscytus gibbulus: LIS 1994a: 221.
Macroscytus sumatranus J.A. LIS, 1994a: 228, 1996: 223, syn. n.
DESCRIPTION
Body 8.00­ 10.78 mm in length, 4.22­5.49 mm in width, from dark castaneous to almost black, corium and apical part of umbones usually more brownish than scutellum.
Head dorsally polished, impunctate, sometimes only slightly wrinkled in lateral parts of paraclypei; clypeus subapically without a pair of setigerous punctures, each paraclypeus submarginally with a single preocular setigerous puncture (Fig. 132); ocular index 1.85­2.45; interocellar index 6.0­11.0; length of antennal segments (in mm): 0.41­0.43: 0.47­0.60: 0.63­0.85: 0.82­1.01: 0.94­1.12.
Pronotum divided into two lobes by distinct transverse impression behind calli bearing numerous punctures; lateral margins with 4­5 submarginal setigerous punctures (Fig. 131). Propleuron with numerous punctures in depression and in basal part of posterior lobe.
Scutellum almost evenly punctate, its basal part and apex impunctate.
Corium almost evenly punctate with punctures smaller than those on scutellum; clavus with one complete and two partial rows of punctures; exocorium weakly punctate; costa narrow, almost entirely separated from exocorium, bearing 2 setigerous punctures (Fig. 131).
Male hind tibiae with small subbasal tubercles, hind femora with distinct subapical teeth (Fig. 133); female hind femora with very small, sometimes indistinct subapical tooth.
Abdominal sterna smooth, bearing more or less developed wrinkles, each segment laterally with a triangular patch of dense tiny punctures posterior to spiracles, sterna III and IV with very few tiny punctures also anterior to spiracle; sometimes lateral third of sterna with a few large clearly visible punctures.
Male genitalia as in Figs 134­135.
TYPE DATA
Syntype (s) of Hahnia gibbula ELLENRIEDER: Sumatra, Lahat (lost or destroyed). Neotype male (present designation) of Hahnia gibbula ELLENRIEDER: Sumatra, Bindjei­Medan (UO).
Holotype male of Macroscytus sumatranus LIS: Indonesia, Java, Banjoewangi (ZMA).
MATERIAL EXAMINED
Neotype of Hahnia gibbula, Holotype of Macroscytus sumatranus, 62 paratypes of Macroscytus sumatranus, and 1 other specimen: Burma: Katha, 2 paratypes (MCSN, ZIZM); Tenasserim, Thagata, 1 paratype (MCSN); Rangoon, 1 paratype (MNHN). China: Nauning, Kwangsi, 2 paratypes (NNML). India: Calcutta, 1 paratype (ZIZM); Gopaldhara, Darjeeling, 1 paratype (BMNH); Tenmalai, Travancore, 1 paratype (BMNH); Barodabri, 2 paratypes (ZIP, UO); Kalimpong, 1 paratype (ZIP). Indonesia: Buitenzorg, Java, 2 paratypes (ZIZM); Java, 1 paratype (NHMW); Sumatra, Tandigeng bij, Moeara Enim, 1 paratype (ZMA); Bengkalis, 1 paratype (MNHN); Timor, 1 paratype (ZMA); Tandjong Morawa, Serdang, NO Sumatra, 3 paratypes (NNML, UO); Gedanga, 2 paratypes (NNML); Palembang, 1 paratype (NNML); Timor, Oesusu, 1 ex. (NSMT). Laos: Luang Prabang, 2 paratypes (BMNH, MNHN); Vientian, 1 paratype (ZIP); Xieng Khouang, Ta Trang, 3 paratypes (BMNH, UO). Malaysia: Pahang, Taman Negara, 3 paratypes (BMNH, UO); Malaya, Kuala Lumpur, 1 paratype (BMNH); Malay Penin., 4 paratypes (BMNH, UO); Malay Penin., West Coast, Langkawi Is., 1 paratype (BMNH); Borneo, E. Malaysia, Sepilok, Sabah, 2 paratypes (NSMT); N. Borneo, Sabah, 10km SE Ranau, 1 paratype (NNML); Malaysia, Sabah, Long Pa Sia, 1 paratype (NNML); Borneo, Sarawak, trail Pa Lungan ­ Long Rapun, 1 paratype (NNML). Singapore: 1 paratype (BMNH). Thailand: Thailand, 1 paratype (BMNH); Siam, 1 paratype (UO); Siam, Nan, 1 paratype (BMNH). Vietnam: Tonkin Centr., Region de Chim­Hoa et de Tuyen­Quan, 1 paratype (UO); Tonkin, Env. de Hanoi (Demange), 1 paratype (MNHN); Tonkin, reg. de Hoa­Binh, 5 paratypes (MNHN, UO); Saigon, 2 paratypes (MNHN); N­Vietnam, Cuc Phuong, 2 paratypes (NHMW); Annam, Phuc­Son, 3 paratypes (ZIZM).
DISTRIBUTION
Burma, China (Guangxi), India, Indonesia, Laos, Malaysia, Singapore, Thailand, Vietnam.
description: Published as part of Lis, J. A., 2000, A revision of the burrower-bug genus Macroscytus Fieber, 1860 (Hemiptera: Heteroptera: Cydnidae), pp. 359-509 in Genus (Wrocław) 11 (3) on pages 416-418