Madates limbata
Creators: name: RIDER, D. A.
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pentatomidae
Madates
Madates limbata

description: Madates limbata (FABRICIUS 1803) (Figs 1, 2, 6-9, 22-24)
Cimex limbatus FABRICIUS 1803: 176.
Strachia limbata: SPINOLA 1837: 320.
Pentatoma limbata: WESTWOOD 1837: 8.
Cinxia limbata: STÅL 1862: 105; LETHIERRY & SEVERIN 1893: 156; DISTANT 1902: 195, fig. 117; KIRKALDY 1909: 106-107; HSIAO et al. 1977: 139, fig. 447, pl. 20 fig. 290.
Madates limbatus: CHINA 1928: 190.
Redescription. Head subtriangular, lateral margins nearly straight, thinly but distinctly reflexed, reflexion slightly broader near apex. Eyes substylate, base of stalk with shallow, but distinct depressed sulcus; ocelli rather small, about six times their diameter from adjacent compound eye. Tylus slightly longer than juga, jugal apices curve mesad over apex of tylus, but not quite contiguous. Dorsal surface of head nearly impunctate, with at most a few sparse punctures on vertex, and a few oblique, transverse, wrinkles on juga; vertex slightly tumescent, rest of head rather flat, slightly elevated anterolaterad; coloration yellowish-orange except following areas black: broad, medial band including tylus, mesial margins of juga (except apically), continuing to base of head; oblong triangular spot on basal lateral margin of each jugum, each of which proceeds onto dorsal surface of adjacent antennifer; entire dorsal surface of each eye stalk, which continues mesad at an angle towards base of head, just including each ocellus; entire basal margin of head. Antennae black, segment I reaching or slightly surpassing apex of head.
Anterior pronotal margin straight to slightly concave behind head, obtusely carinate forming pronotal collar which is separated from pronotal disk by sharp sulcus or row of punctures; anterolateral pronotal margins nearly straight, thickly and obtusely reflexed, separated from pronotal disk by row of submarginal punctures, anteriorly curving mesad and overlapping lateral margins of pronotal collar; each anterior pronotal angle armed with minute, lateral-projecting tooth. Anterior disk of pronotum nearly impunctate, pronotal cicatrices marked by shallow depressions; posterior disk sparsely and coarsely punctate; coloration black except all margins yellow, relatively broad, longitudinal, medial yellow-orange band, and a rather narrow transverse, yellow band just behind pronotal cicatrices, thus dividing pronotal disk into four large black spots, anterior two spots smaller than posterior two; lateral margins of black spots not quite reaching row of submarginal punctures.
Scutellum triangular, apex narrowly rounded; basal area distinctly tumescent, impunctate or very weakly punctate, becoming more densely punctate posteriorly, apical portion of scutellar tongue impunctate. Scutellum black except narrow, longitudinal, medial, yellow line; apical half of scutellar tongue yellow; and lateral margins yellow, more broadly so near middle, and angling slightly mediad near base so that actual lateral margin near base is narrowly black. Hemelytra more densely and uniformly punctate, except for small spot near apex of r + m vein impunctate, those on embolar area somewhat coalescent. Each corium black except apical margin yellow, lateral margin for basal third yellow, this continuing at an angle as yellow band along lateral margin of r + m vein, bifurcating into very thin yellow line paralleling lateral margin, and a broader arcuate orangish band which joins with apical band near inner basal angle of corium; thin, obfuscated, yellow streaks along claval suture, and another more laterad line paralleling claval suture. Membrane fumose, hyaline distally. Connexiva completely covered by hemelytra.
Ventral surface of head impunctate, yellowish-orange, except inner surface of eye stalks black, apical margin of antennifers black, and a relatively broad band along basal margin of each buccula black. Rostrum reaching between hind coxae, segments black except ventral surface of segment I yellow, and joints between segments I and II, and II and III, brownish; segment I reaching distinctly beyond apices of bucculae. Prosternum shallowly depressed medially, bounded laterally by slightly elevated, obtuse carinae, forming V-shape, anteriorly continuing laterad as obtuse carinae along base of head; mesosternum carinate medially; metasternum relatively flat. Thoracic pleura yellow with large and small black spots, and a few weak punctures along posterior margins of each pleurite. Ostiolar opening very small, unattended by ostiolar ruga; evaporative areas limited to small finger-like band caudad of opening, and a narrow transverse band along anterior margin of each metapleuron. Legs black with more or less distinct, longitudinal yellow streaks. Abdominal venter unarmed medially, impunctate, yellow with two series of black spots on each side, the two medial spots on segment VII fused to form single medial spot. Lateral abdominal angles rectilinear, not produced. Spiracles black, located near lateral margin of lateral series of black spots.
Posteroventral surface of pygophore separated into dorsal and ventral halves by shallow, transverse, depression, this depression not interrupted medially by tumescence, or laterally by thin oblique ridge (Fig. 6); dorsal half yellow, ventral half black, except yellow medially. Posterior margin in caudal view obtusely rounded, slightly sinuous, with medial U-shaped depression which itself has medial U-shaped emargination (Fig. 6). Posterior lobe of each paramere, elongate, not parallel-sided, tapering, with two longitudinal ridges, apex spinose (Figs 7-9); anterior lobe rather broad, slightly angulate apically, tooth near apex slightly larger than other teeth. Proctigeral surface distinctly concave, anterior margin not emarginate medially; lateral margins of anterior half expanded, anterior half of proctiger distinctly wider than posterior half. Superior ridge distinctly produced medially over base of proctiger. Basal plates large, tumescent, nearly impunctate, black except along mesial margins, and along posterolateral angles; posterior margins transverse, slightly sinuous, mesial margins contiguous only in middle, distinctly separated basally (Fig. 22); ninth paratergites broadly rounded, curving mesad (Fig. 22), extending to or slightly beyond apex of abdomen; eighth paratergites lacking spiracles; second gonocoxae somewhat bulbous, tenth sternite flat, square. Sclerotized rod of spermatheca distinctly hooked apically (Fig. 24); spermathecal bulb rounded, orbicular, without finger-like extensions (Fig. 23).
Measurements (mm): Total length 12.14-14.55 (13.59); total width across humeri 6.60-8.15 (7.37); medial length of pronotum 2.59-3.08 (2.80). Scutellar length 4.98-5.97 (5.23); width of scutellum at base 3.74-4.93 (4.30); width at distal ends of frena 1.03-1.38 (1.34); length of scutellar tongue 1.46-1.67 (1.50). Length of head 2.12-2.43 (2.20); width across eyes 3.11- 3.64 (3.44); interocellar width 0.88-1.03 (1.00); interocular width 2.14-2.43 (2.30); ocellar diameter 0.11-0.14 (0.11); distance from ocellus to adjacent eye 0.60-0.69 (0.64). Length of segments I-V of antennae 0.85-1.18 (1.00), 1.52-1.94 (1.88), 2.35- 2.76 (2.69), 2.94-3.44 (3.33), and 2.82-3.05 (3.05), respectively. Length of segments I-IV of rostrum 1.19-1.35, 1.85-2.19 (1.85), 1.04-1.24 (1.24), and 1.27-1.34 (1.27), respectively.
Type material: Lectotype ♂ (here designated), a) “ ♂ “; b) “TYPE“; c) “ Sumatra Daldorff. Cimex limbatus Fabr. “, deposited in the British Museum (Natural History). The lectotype is in fairly good condition, the wings are slightly spread, the left antenna is missing segment V, the right middle leg and the left hind leg have only the coxa and trochanter present, the specimen has been re-pinned so there is an extra hole through left side of scutellum, glue has been applied to pin where it exits venter of thorax, thus obscuring structure of metasternum, base of abdomen slightly contorted.
Distribution: China (Yunnan), Indonesia (Java, Sumatra), Laos, Malaysia (Malaya), Myanmar, Thailand, Vietnam.
Specimens Examined: China: Yunnan Prov., Ruili Co., 24.0 N, 97.8 E (3♂♂, 2♀♀, 1?: abdomen missing, NKUM); Yunnan Prov., Jing-hong Co., Meng-long, Mang-bing, 21.5N 100.6 E (1♂, 1♀, NKUM). Indonesia: Java (1♀, CASC; 1♂, 2♀♀, USNM; 1♀, ZMAS; 5♀♀, ZMUC); Java, Sukabumi (1♂, ZMHB); Sumatra (1♂, 2♀♀, CASC; 1♀, ZMAS; 1♂, 4♀♀, ZMUC); Sumatra, Dolok Baroe (1♀, ZMAS); Sumatra, Ft. de Kock (1♂, 1♀, USNM); Sumatra, Ober Langkat Deli (1♂, 1♀, ZMHB); Sumatra, Palau Samosir (Lake Toba), 2°35’N 98°50’E (1♂, 1♀, DARC); Sumatra, Sandaran Agong, Lake Korinchi (1♂, BMNH); Sumatra, Suliki, Pajacombo (2♂♂, 1♀, ZMAS); Sumatra, Tapanuli (1♂, 1♀, USNM); Sumatra, Tebing-tinggi (1♂, USNM). Laos: Tonpheng (10♂♂, 3♀♀, BPBM); Uelcinak (1♀, BPBM); Vientiane Prov., Ban Van Eue (7♂♂, 6♀♀, BPBM; 1♂, DARC); Vientiane Prov., Gi Sion Vill., de Tha Ngone (3♂♂, 3♀♀, BPBM); Vientiane Prov., Phou Kou Khouei (1♂, BPBM); Vientiane Prov., Vientiane (1♀, DARC). Malaya: Perak Prov., 2km NE Tapah (1♂, 1♀, USNM); Selangor, Kuala Lumpur (1♂, BMNH; 1♀, USNM); Selangor, Ulu Kanson (1♂, BMNH); Selangor, Ulu Langat (3♂♂, 3♀♀, BPBM). Myanmar: Prome (1♂, BMNH), Tenasserim (1♂, BMNH). Thailand: Nakon Sri Tamirat, Khao duang (1♂, BMNH). Vietnam: (1♂, 1♀, BMNH); Haut Mekong, Pang Tiac (1♀, BMNH); Haut Mekong, Pou Hai Katoui (1♂, BMNH); Luang Prabang, Ban Na Khok (1♀, BMNH); Luang Prabang, Ko Kieng (1♀, BMNH); Luang Prabang, Muong Houoc (1♂, BMNH); Luang Prabang, Muong Kop (1♂, BMNH); Xieng Kouang (1♀, BMNH). Unknown country: Lipoholon (2♂♂, 2♀♀, ZMUC). Unknown locality: (2♂♂, 1♀, AMNH; 3♀♀, ZMAS; 1♀, ZMUC).
Comments. This is the most common and widespread species in the genus. It is larger than M. parva nov.sp., and differs from it and M. quadricarinata nov.sp. by the more elongate posterior lobe of each paramere, the apex of which is sharply spinose, or nearly so. Madates heissi nov.sp. has the posterior lobe of each paramere more elongate, with sides nearly parallel, the apex is only obtusely spinose. Also in M. limbata, the transverse, depressed area on posteroventral surface of the pygophore is uninterrupted medially or laterally; M. parva nov.sp. has a medial tumescence, and M. heissi nov.sp. has a narrow oblique ridge on each side that traverses this depressed area.
description: Published as part of RIDER, D. A., 2006, Review of the genus Madates STRAND with the description of three new species (Heteroptera, Pentatomidae), pp. 599-610 in Denisia 19 on pages 601-604