Research Article |
Corresponding author: Petr Baňař ( petrbanar@seznam.cz ) Academic editor: Alfred Wheeler
© 2018 Petr Baňař, Ernst Heiss.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Baňař P, Heiss E (2018) A new Cervinotaptera species from northern Madagascar (Hemiptera, Heteroptera, Aradidae). In: Wheeler Jr AG (Ed.) A Festschrift Recognizing Thomas J. Henry for a Lifetime of Contributions to Heteropteran Systematics. ZooKeys 796: 307-318. https://doi.org/10.3897/zookeys.796.24540
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A new species, Cervinotaptera tomhenryi, sp. n. (Hemiptera: Heteroptera: Aradidae: Mezirinae), from Montagne d’Ambre National Park in northern Madagascar is described and illustrated. The newly described species is compared with the only other known species, Cervinotaptera guilberti Heiss & Marchal, 2012.
apterous, Cervinotaptera , Mezirinae , new species, northern Madagascar
The first comprehensive studies on Aradidae of Madagascar and adjacent islands were provided by Ludvík
The genus Cervinotaptera Heiss & Marchal, 2012 (Hemiptera: Heteroptera: Aradidae: Mezirinae) was erected for the apterous species Cervinotaptera guilberti Heiss & Marchal, 2012 from northern Madagascar (
The body surface of most apterous, litter-living aradids is frequently covered by a layer of incrustations, which obscure body structures and intersegmental boundaries (Figure
The term "dorsal ocular index" refers to the ratio of the minimum interocular distance to the maximum width of the eye; it is best calculated if measured as: (twice minimum interocular distance) / (maximum width across eyes, minus minimum interocular distance).
Color photographs of the newly described species were taken with a Leica MSV266 camera. Scanning electron micrographs of a gold-coated specimen were taken using a JEOL 6380 LV scanning electron microscope.
Measurements were taken using a SZP 11 ZOOM stereoscopic microscope with an eyepiece micrometer. Label data are cited verbatim, including potential errors, using a slash (/) to separate lines on the label; different labels are mentioned and indicated by a double slash (//). Notes of the authors are in [square brackets].
Abbreviations used in text:
deltg dorsal external laterotergite (connexivum),
mtg mediotergite,
vltg ventral laterotergite,
pe-angle posteroexterior angle (of deltg).
The material studied is deposited in following collections:
CEHI Ernst Heiss collection, Tiroler Landesmuseum, Innsbruck, Austria.
Type material. Holotype male, ‘MDA/Jan.2015/11 N MADAGASCAR / MONTAGNE D‘AMBRE ~945m, circuit / „Sommet“, S12°31’28‘‘E49°09’52‘‘ / sifting litter+rotten wood, Winkler app. extr. / 14.1.2015, P. Baňař & E.M. Rabotoson lgt.’ [printed] // ‘HOLOTYPE / Cervinotaptera / tomhenryi sp. nov. / Baňař & Heiss des. 2018’ [printed red label] (
Apterous, body short, broadly oval (Figures
(in mm). Male holotype (one female paratype in brackets). Total body length: 3.62 (4.04); head length (without collar): 0.67 (0.71); head width across eyes: 0.84 (0.86); minimum interocular distance: 0.59 (0.60); length of antennal segments: I: 0.37 (0.39), II: 0.22 (0.23), III: 0.67 (0.69), IV: 0.37 (0.38); pronotum length [including tubercles]: 0.60 (0.60), pronotum width [including tubercles]: 1.42(1.42); maximum width of abdomen: 1.98 (2.33), tergal plate length: 0.93 (0.93); tergal plate width: 1.22 (1.33).
Head (Figures
Pronotum 2.37 times as long as wide across lateral tubercles in both sexes; anterior lobe with two pairs of lateral tubercles (Figures
Mesonotum fused to metanotum, fusion lines only partly visible, posteriorly with conspicuous median elevation bearing two semicircular tubercles. Posterior margin with two deep pits connected with very deep and broad median depression on metanotum.
Metanotum (Figure
Cervinotaptera tomhenryi sp. n., male paratype, scanning electron micrographs. A tergal plate B mesonotum and metanotum with fused mediotergites I+II C triangular sclerite of fused dorsal external laterotergites II+III D apex of tubercle of dorsal external laterotergites II+III E pygophore dorsal view F pygophore lateral view. Scale bars in mm.
Abdomen. Tergal plate (Figure
Legs unarmed, slender, sparsely covered with short, semi-erect setae. Femora widening distally, tibiae slightly curved.
Male genitalia (Figures
Female. General body structures similar in both sexes, female larger and wider.
Dedicated to our dear colleague and friend Thomas J. Henry, eminent student of the Heteroptera.
All known specimens were collected by sifting mountain evergreen rain forest leaf litter in Montagne d’Ambre National Park (Figure
Known only from Montagne d’Ambre National Park in northern Madagascar.
Cervinotaptera tomhenryi sp. n. differs from Cervinotaptera guilberti Heiss & Marchal, 2012 by wider head; longer and thinner antennae; less curved antennal segment I; shorter antennal tubercles (Figures
Cervinotaptera species. A–C outline of head D–F fused dorsal external laterotergites II+III G–H lateral finger-like processes of pronotum. A, D C. tomhenryi sp. n., male holotype B, E, G C. tomhenryi sp. n., female paratype C, F, H C. guilberti Heiss & Marchal, 2012, female holotype. Scale bars in mm, D–H schemes, not measured.
Apterous Aradidae in stable tropical habitats of Madagascar tend to develop curious abdominal structures such as forked lateral expansions on the thorax and abdomen (Chlonocoris Usinger & Matsuda, 1959), ovate callosities and nodules (Comorocoris Heiss, 1985) or finger-like projections of different size (Cervinotaptera) and, in Mezirinae, show a remarkable development of unusual structures of metathoracic (Ambohitantelya Heiss & Baňař, 2013) and even prothoracic scent-gland evaporatoria. The adaptive value of these unusual structures and their importance in aradid classification are unknown and require further investigation.
Petr Baňař would like to thank Dr. Lala Harivelo Ravaomanarivo Raveloson (University of Antananarivo, Faculty of Sciences, Department of Entomology), Dr. Mamy A. Rakotoarijaona (Directeur des Opérations, Madagascar National Parks) and Dr. Dimby Raharinjanahary (Chargé des Bases de données de suivi biodiversité et recherche, Madagascar National Parks) for supporting our research project: ‘Étude à long terme de la biodiversité des groupes choisis d’insectes: Coléoptères, Hétéroptères, Homoptères, Lépidoptères et quelque famille de Micro Lépidoptères nocturne dans les localités préalablement sélectionnées en considération de la recherche et la protection de la biodiversité dans les aires protégées de Madagascar. Analyse des risques potentiels d’influencer négativement la biodiversité dans les régions étudiées’. This work was financially supported (to Petr Baňař) by the Ministry of Culture of the Czech Republic, as part of its long-term conceptual development program for research institutions (ref. MK000094862).