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Catalogue 2009 Acridiens Cameroun Et R. Centrafricaine

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Catalogue 2009 Acridiens Cameroun Et R. Centrafricaine AcridiensAcridiens dudu CamerounCameroun etet dede RépubliqueRépublique centrafricainecentrafricaine (Orthoptera(Orthoptera Caelifera)Caelifera) 2009 AcridiensAcridiens dudu CamerounCameroun etet dede RépubliqueRépublique centrafricainecentrafricaine (Orthoptera(Orthoptera Caelifera)Caelifera) Supplément au catalogue et atlas des acridiens d'Afrique de l'Ouest Jacques MESTRE Joëlle CHIFFAUD 2009 © MESTRE Jacques & CHIFFAUD Joëlle, novembre 2009 Édition numérique ISBN 978-2-9523632-1-1 SOMMAIRE • Introduction, p. 3 • Le milieu, p. 4 • Les travaux sur l'acridofaune du Cameroun et de la République centrafricaine, p. 5 • Les espèces recensées, p. 5 • Institutions dépositaires, p. 11 GENRES ET ESPÈCES, p. 12 Acanthacris, p. 13 Galeicles, p. 47 ▪ A. elgonensis ▪ G. kooymani Afromastax, p. 14 ▪ G. parvulus ▪ A. camerunensis ▪ G. teocchi ▪ A. nigripes Gemeneta, p. 49 ▪ A. rubripes ▪ G. opilionoides ▪ A. zebra occidentalis ▪ G. terrea ▪ A. zebra zebra Glauningia, p. 51 Anablepia, p. 18 ▪ G. macrocephala ▪ A. granulata Hadrolecocatantops, p. 52 Anacridium, p. 20 ▪ H. kissenjianus ▪ A. illustrissimum ▪ H. mimulus Apoboleus, p. 21 ▪ H. ohabuikei ▪ A. degener ▪ H. quadratus Atractomorpha, p. 22 Hemiacris, p. 56 ▪ A. aberrans ▪ H. dromaderia Badistica, p. 24 ▪ H. tuberculata ▪ B. bellula ▪ H. uvarovi Barombia, p. 25 ▪ H. vidua ▪ B. tuberculosa Hemierianthus, p. 60 Bocagella, p. 27 ▪ H. assiniensis ▪ B. lanuginosa ▪ H. bertii Bosumia, p. 28 ▪ H. bule ▪ B. tuberculata ▪ H. curtithorax Callichloracris, p. 29 ▪ H. forceps ▪ C. prasina ▪ H. finoti Cataloipus, p. 30 ▪ H. fuscus ▪ C. gigas ▪ H. gabonicus Criotocatantops, p. 31 ▪ H. martinezi ▪ C. clathratus ▪ H. parki ▪ C. irritans Heteropternis, p. 68 Cylindrotiltus, p. 33 ▪ H. cheesmanae ▪ C. versicolor inversus ▪ H. pugnax ▪ C. versicolor versicolor Hintzia, p. 70 Cyphocerastis, p. 35 ▪ H. squamiptera ▪ C. hopei Kassongia, p. 71 ▪ C. laeta ▪ K. flavovittata flavovittata ▪ C. pulcherrima Loxicephala, p. 72 ▪ C. scheunemanni ▪ L. linguifera ▪ C. tristis ▪ L. mirei Dichromothericles, p. 39 Madimbania, p. 74 ▪ D. luteovittatus ▪ M. cephalica Digentia, p. 40 ▪ M. madimbana ▪ D. fasciata Mastachopardia, p. 76 ▪ D. punctatissima ▪ M. mirei Eucoptacra, p. 42 ▪ M. jagoi ▪ E. signata ▪ M. digitata Euschmidtia, p. 43 ▪ M. zougueana ▪ E. congana Mazaea, p. 79 Eyprepocnemis, p. 45 ▪ M. granulosa ▪ E. montana Megafrohippus, p. 80 ▪ E. vulcanigena ▪ M. magnificus Mestre J. & Chiffaud J., 2009 - Acridiens du Cameroun et de R. centrafricaine 1 Occidentosphena, p. 81 Ritchiella, p. 111 ▪ O. uvarovi ▪ R. uvarovi Odontomelus, p. 82 Roduniella, p. 112 ▪ O. kamerunensis ▪ R. insipida Orthochtha, p. 83 Segellia, p. 113 ▪ O. brachycnemis ottei ▪ S. lepida ▪ O. nigricornis congoensis ▪ S. nitidula Oxycatantops, p. 85 Serpusia, p. 115 ▪ O. imperator ▪ S. opacula Pamacris, p. 87 ▪ S. succursor ▪ P. diversipennis Stenocrobylus, p. 117 Parapetasia, p. 88 ▪ S. catantopoides ▪ P. femorata ▪ S. cinnabarinus Parapropacris, p. 90 ▪ S. roseus ▪ P. ebneri Stobbea, p. 120 Phaeocatantops, p. 92 ▪ S. riggenbachi ▪ P. johnstoni ▪ S. undulata ▪ P. signatus Sumba, p. 123 Phryganomelus, p. 94 ▪ S. longicornis ▪ P. biafrensis Taphronota, p. 124 ▪ P. romi ▪ T. ferruginea apicicornis Phymeurus, p. 96 ▪ T. occidentalis ▪ P. reductus Thamithericles, p. 127 Poecilocerastis, p. 97 ▪ T. quagga ▪ P. tricolor occidentalis Trilophidia, p. 128 Pristocorypha, p. 98 ▪ T. parvula ▪ P. latruncularia Truxaloides, p. 129 Pteropera, p. 99 ▪ T. tessmanni ▪ P. bertii Xenotruxalis, p. 130 ▪ P. carnapi ▪ X. fenestrata ▪ P. descampsi ▪ P. karschi zenkeri ▪ P. mirei ▪ P. teocchii ▪ P. uniformis ▪ P. verrucigena Pterotiltus, p. 105 ▪ P. apicalis rubroantennatus ▪ P. coeruleocephalus ▪ P. femoratus ▪ P. impennis ▪ P. inuncatus ▪ P. miniatulus ▪ P. minimus ▪ P. occipitalis BIBLIOGRAPHIE, p. 131 INDEX, p. 161 2 Mestre J. & Chiffaud J., 2009 - Acridiens du Cameroun et de R. centrafricaine Introduction L'objet du présent supplément à notre catalogue 2006 (*) est d'étendre la zone géographique étudiée en intégrant les acridiens du Cameroun et de la République centrafricaine. On se reportera à ce document pour une présentation générale de notre objet d'étude ainsi que pour diverses informations pratiques. Si l'on retient la terminologie adoptée dans le Grand atlas du continent africain (1973), on ne peut plus en toute rigueur parler seulement d'Afrique de l'Ouest, ces deux pays constituant la partie nord de l'Afrique centrale. Même si la dénomination est un peu lourde, on devrait donc plutôt désigner la zone globale couverte sous l'appellation d'Afrique occidentale et nord-centrale. Nous n'avons listé, pour l'essentiel, que les taxons nouveaux par rapport à notre précédent catalogue. Il ne s'agit donc pas d'un catalogue général de l'acridofaune de ces deux pays. On trouvera l'inventaire global des espèces recensées dans le tableau 1, tableau qui récapitule également l'ensemble des acridiens ouest-africains. On pourra ainsi se reporter à notre catalogue 2006 pour les informations sur les espèces non intégrées au présent supplément. Dans quelques rares cas, des espèces déjà étudiées en 2006 ont été reprises. Il s'agit notamment d'espèces dont le type est originaire du Cameroun ou de République centrafricaine. Nous avons également inclus les espèces ouest-africaines quand elles sont les seules d'un genre mieux représenté dans ces deux pays, ce qui nous a incité à en reprendre la totalité. Le schéma général de présentation des taxons reprend pour l'essentiel celui du catalogue initial. Deux rubriques nouvelles ont été rajoutées pour chaque espèce. L'une (iconographie) indexe la bibliographie contenant des illustrations du taxon, qu'il s'agisse de l'aspect général (habitus), de divers détails morphologiques (autres morph.), des génitalias (génit., dénomination intégrant les illustrations de la spermathèque) ou de l'oothèque (ooth.). Pour l'habitus, on consultera avec grand profit les photos du projet DORSA. L'autre (bio-écologie) fournit une courte synthèse des données disponibles sur le cycle biologique ou l'écologie de l'espèce, données fréquemment absentes ou très sommaires. (*) Mestre J. & Chiffaud J., 2006, Catalogue et atlas des acridiens d'Afrique de l'Ouest. Mestre J. & Chiffaud J., 2009 - Acridiens du Cameroun et de R. centrafricaine 3 LE MILIEU La végétation Figure 1.– Types de végétation (d'après White, 1981, modifié et simplifié). 1, forêt ombrophile ; 2, mosaïque de forêt ombrophile et de formation herbeuse secondaire ; 3a, forêt claire soudanienne avec abondance d'Isoberlinia, et 3b, forêt claire soudanienne indifférenciée ; 4, formation herbeuse boisée à Acacia et formation buissonnante décidue du Sahel ; 5, formations herbeuse et arbustive semi-désertiques du Sahel septentrional ; 6, déserts sahariens (avec diverses sub-divisions) ; 7, formation herbeuse édaphique à végétation semi-aquatique du delta intérieur du Niger au Mali et végétation azonale marécageuse herbacée et aquatique du lac Tchad ; 8, en brun, forêts de montagne ; 9, les liserés blancs soulignant certaines portions du littoral correspondent aux principales mangroves (au Liberia = formation de type 2). La pluviosité Figure 2.– Pluviosité annuelle moyenne (en mm) pour la période 1951-1989 (d'après L'Hôte et Mahé, 1996, modifié et simplifié). 4 Mestre J. & Chiffaud J., 2009 - Acridiens du Cameroun et de R. centrafricaine LES TRAVAUX SUR L'ACRIDOFAUNE DU CAMEROUN ET DE LA RÉPUBLIQUE CENTRAFRICAINE A l'image du Togo, la connaissance de La partie occidentale près de la frontière l'acridofaune du Cameroun résulte beaucoup nigériane (provinces sud-ouest et nord- de la présence coloniale allemande. C'est ouest), incluant le Mont Cameroun, est la également le cas, mais dans une moindre mieux connue. De nombreuses espèces mesure, pour la République centrafricaine, forestières ne sont d'ailleurs recensées que pays très peu étudié. de cette région d'Afrique, souvent par de Pendant cette période, que ce soit sur la rares spécimens voire uniquement par la base de stations permanentes ou de missions série type. itinérantes, la collecte entomologique et plus L'acridofaune des parties nord souda- largement zoologique met à contribution de nienne et sahélienne est connue directement nombreuses personnes. Scientifiques, explo- par les collectes ou, surtout, se devine rateurs, militaires et autres participent à un indirectement par la connaissance plus degré ou à un autre à cet effort de collecte. précise que l'on a des régions adjacentes des On citera en particulier Paul Preuss à pays limitrophes (Nigeria et Tchad). Barombi-Station, près de la ville de Kumba au Le reste du pays est connu de manière Cameroun, ou le Dr. Houy en République plus hétérogène au gré des présences de centrafricaine lors de la délimitation des collecteurs variés. On citera en particulier la frontières (1913) entre le Neu-Kamerun et les région de Yaoundé. colonies françaises de l'Oubangui-Chari et du Moyen-Congo. La République centrafricaine est un pays Ces collectes donneront lieu à plusieurs jusqu'ici très mal inventorié. En dehors des publications importantes comme celles de quelques collectes du Dr. Houy, principa- Willy Ramme (1929) et de Ferdinand Karsch lement à l'ouest de Bangui, on notera celles (1890, 1891, 1892, 1896). De nombreux faites sur la station de La Maboké ou dans ses taxons nouveaux y sont décrits. environs, au sud-ouest de la même ville de Bangui. Mais cette région est loin d'être Par la suite, il faut surtout noter les représentative du pays. collectes faites dans le sud-ouest du pays (Bamenda et environs),
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