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

description: Madates parva nov.sp. (Figs 5, 18-21, 24)
Description: Ovoid, black with pale yellow markings, somewhat smaller than other Madates species (Fig. 5).
Head subtriangular, narrowing gradually to rounded apex, lateral margins weakly sinuous, narrowly reflexed. Eyes substylate, shallow obtuse sulcus on base of each stalk. Ocelli relatively small, and distant from adjacent eye. Tylus slightly longer than juga which are slanted upwards laterally and pinch inwards over top of tylus distally, not quite contiguous. Vertex slightly inflated, with a few weak punctures or transverse wrinkles; tylus shiny, devoid of punctures or wrinkles; juga with many transverse wrinkles, those on apical half angled forward laterally. Dorsal surface of head black with two longitudinal, pale yellow bands, one on each side of the tylus, continuing posteriorly mesad of each ocellus, not quite reaching base of head; a narrow, transverse band on each side anterior to each compound eye, angled slightly forward, and connecting to pale band along inner margin of each compound eye. Lateral margins of juga black to near apex of head; tylus black, slightly paler near apex. Antennae entirely black, apex of segment I reaching to near apex of head.
Anterior margin of pronotum arcuately concave, obtusely carinate along anterior margin, separated from pronotal disk by row of deep punctures. Anterolateral margins slightly sinuous, obtusely carinate, separated from pronotal disk by row of punctures; anterolateral margins overlapping anterior pronotal margin; minute tooth on each anterior angle. Posterolateral and posterior margins shallowly arcuate, not reflexed. Pronotal disk black, all margins pale yellow, with median longitudinal pale yellow stripe, and a transverse pale stripe just anterior to transhumeral depressed band, thus forming four black, squarish spots, posterior pair larger than anterior pair (Fig. 5); lateral margins of black spots reaching row of punctures near anterolateral carinae. Posterior half of pronotum shallowly, yet coarsely punctate, anterior half more finely punctured medially, pronotal cicatrices impunctate.
Scutellum sharply triangular, apex narrowly rounded, basal disk tumescent. Basal area weakly punctured, becoming more thickly and finely punctured apically, except apical fourth impunctate. Scutellum black with narrow, median, longitudinal pale yellow stripe, and a pale marginal yellow band on each side, extreme lateral margins of scutellum may be thinly black (Fig. 5). Surface of coria more densely and uniformly punctate except for small impunctate area near apex of r + m vein. Coria black with pale-yellow markings as follows: narrow apical margin joining medially with relatively broad transverse band; broad transverse band reaches laterad to or near apex of r + m vein; narrow margin on basal third of each corium; very thin streak running just laterad of r + m vein which sinuously continues to apex of coria; a thin pale streak just mesad of each claval suture, and another thin streak on each side laterad of claval suture (Fig. 5). Hemelytral membrane fumose, hyaline distally. Connexiva completely covered by hemelytra at rest, pale yellow, at least three segments with large black spot in middle.
Ventral surface of head impunctate, pale-yellow except superior surface of antennifers black, thin margin of each juga black, and one or two oblong black spots along basal margin of each buccula. Rostrum reaching between metacoxae, segments III and IV black, segment II black with some pale markings ventrally, segment I yellow with narrow black apex; segment I reaching distinctly beyond apices of bucculae to base of head. Prosternum shallowly sulcate, sulcus narrow posteriorly, becoming broader anteriorly, lateral margins becoming obtusely carinate, carinae diverging and continuing along anterolateral pleural margins. Mesosternum carinate medially, somewhat tumid on each side of carina, tumid areas each with several weak, transverse striae. Metasternum relatively flat, broad, covered with short appressed hairs. Thoracic pleura yellow with two rows of black spots on each side, with a few weak punctures scattered on each pleura. Ostiole reduced, unattended by ruga; evaporative area darkened, reduced to small fingerlike area posterior to ostiolar area, and an elongate streak running along anterior margin of metapleura. Coxae dark brown basally, yellow distally; each trochanter yellow except ventral surface blackish; femora and tibiae black with yellow longitudinal streaks; tarsi black. Abdomen unarmed, lacking punctures, yellow with two series of black spots on each side. Medial spots transversely elongate, joining together on segment VII; lateral row of spots smaller, somewhat squarish, surrounding each spiracle. Posterolateral angles slightly rounded, not spinose or produced.
Posteroventral surface of pygophore divided into dorsal and ventral halves by transverse depression, depressed area interrupted medially by a small tumescence (Fig. 18, mt); ventral half black (except tumescence and surrounding area yellow), dorsal half yellow. Posterior margin of pygophore, in posteroventral view, with a small, sharply delimited, U-shaped depression medially, depressed area itself has shallow, U-shaped, medial emargination (Fig. 18). Posterior lobe of each paramere robust, with a posteromesial and a posterolateral longitudinal ridge, apex blunt with small, vague, posterolateral tooth (Figs 19-21); anterior lobe of each paramere large, shallow, bowl-like, opposing adjacent posterior lobe of paramere, rim of each bowl lined with small, black, blunt teeth, posterolateral tooth larger than others (Fig. 19). Proctigeral surface deeply concave, anterior margin with shallow Ushaped emargination, anterior half and posterior half subequal in width. Superior ridge of pygophore broadly yet narrowly produced over proctiger. Basal plates tumescent, mostly black except lateral and mesial margins yellowish, posterior and mesial margins arcuately rounded such that they are well-separated basally (Fig. 25). Ninth paratergites broadly finger-like, rounded apically, extending slightly beyond apex of abdomen; eighth paratergites lacking spiracles, posterolateral angles broadly rounded, not produced.
Measurements (mm). Total length 9.69- 11.31 (9.69); width across humeri 5.32-6.32 (5.32); width across abdomen 5.93-6.98 (6.01); medial length of pronotum 2.11-2.50 (2.11). Medial length of scutellum 4.13-4.48 (4.14); basal width 3.17-3.83 (3.17); width at distal end of frena 0.98-1.19 (1.10). Length of head 1.94-2.13 (1.94); width 2.73-3.01 (2.73); interocular width 1.77- 2.01 (1.77); interocellar width 0.79-0.90 (0.79); ocellar diameter 0.09-0.10 (0.90); distance from ocellus to adjacent eye 0.45- 0.55 (0.45). Lenth of segments I-V of antennae 0.75-0.86 (0.75), 1.10-1.17 (1.14), 1.48-1.64 (1.48), 1.92-2.14 (1.92), and 2.12-2.32 (2.12) respectively. Length of segments I-IV of rostrum 0.99-1.07 (0.99), 1.51-1.66 (1.51), 0.75-0.79 (0.79), and 0.94-1.00 (0.94) respectively.
Distribution: southern India.
Holotype: ♂, labeled a) “ South India, Anamalai Hills, Cinchona, 3500 ft., May 1956, P. Sussi Nathan, Collector“; b) “J C Lutz Collection 1961“ (USNM). Paratypes: 74♂♂, 61♀♀. India, Kerala State, Thklady (1♂, UCMS). India, Madras State, Animalai Hills, Cinchona, (21♂♂, 23♀♀, AMNH; 1♂, BMNH; 7♂♂, 7♀♀, BPBM; 40♂♂, 28♀♀, CASC; 1♂, 1♀, DARC; 1♂, UCMS; 1♂, 2♀♀, USNM).
Etymology. The specific name, parva, refers to the fact that this species tends to be smaller in size than the other three species of Madates.
Comments: All four species of Madates are very similar in coloration, yet several color characters seem to be constant enough to serve for the separation of this species. It is the only species to have the black lateral markings on the head continuing forward along the lateral margins to near apex of head. The broad transverse pale band on the apical half of each corium, the medial tumescence on the posteroventral surface of the pygophore, and the shape of the parameres are also diagnostic.
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 608-609