Contribution à l’étude de la biodiversité des coleoptères tenebrionidae de la République du Bénin: premier inventaire

Gérard Robiche, Philippe Le Gall et Georg Goergen

Résumé :

Un inventaire faunistique des coléoptères Tenebrionidae a été conduit en République du Bénin Durant plusieurs années. Cette famille était restée jusqu’ici relativement peu étudiée pour la zone géographique considérée. Les récoltes effectuées dans diverses localités représentatives des zones phytogéographiques ont permis de recenser, à ce jour, 197 espèces, dont 5 nouvelles et d’apporter quelques renseignements biologiques et écologiques sur certaines d’entre-elles. Près de la moitié des espèces répertoriées sont illustrées. Les espèces Argobrachium barrei sp. n., Oncosoma girardi sp. n. et Strongylium beniniensis sp. n. sont nouvellement décrites.

Lambillionea, CII, 4, Décembre 2002, 381-431

Description of a new species and a new subspecies of Odontorrhina Burmeister, 1842 (Scarabaeidae, Cetoniinae), with ecological notes on the genus

Renzo Perissinotto

Résumé :

A new species, Odontorrhina maraisi sp. n., is added to the genus on the basis of new material collected in the semiarid Namaqualand region of South Africa. A new subspecies of O. pubescens (Olivier, 1789), O. pubescens hantam ssp. n., is recognized from the high altitudes of the Hantamsberg near Calvinia. Recent observations have led to the conclusion that all members of the genus, with the exception of O. krigei Schein, 1950, complete their larval development under dense shrubs, utilizing mainly leaf litter as food source and the shade provided by the host plant as protection against heat and desiccation. O. krigei makes use of termite hills to achieve the same, while feeding on detrital matter produced by termites. The coastal O. pubescenss. str. appears to be the only member that has feeding adults, which are able to ingest sap of Melianthus spp. shrubs after cutting the bark of the softest branches in the upper part of the plant canopy.

African Invertebrates, 53(2):733-744. 2012.

Phylogeography and population genetics of the maize stalk borer Busseola fusca (Lepidoptera, Noctuidae) in sub-Saharan Africa

Sézonlin et al

Résumé :

The population genetics and phylogeography of African phytophagous insects have received little attention. Some, such as the maize stalk borer Busseola fusca, display significant geographic differences in ecological preferences that may be congruent with patterns of molecular variation. To test this, we collected 307 individuals of this species from maize and cultivated sorghum at 52 localities in West, Central and East Africa during the growing season. For all collected individuals, we sequenced a fragment of the mitochondrial cytochrome b. We tested hypotheses concerning the history and demographic structure of this species. Phylogenetic analyses and nested clade phylogeographic analyses (NCPA) separated the populations into three mitochondrial clades, one from West Africa, and two — Kenya I and Kenya II — from East and Central Africa. The similar nucleotide divergence between clades and nucleotide diversity within clades suggest that they became isolated at about the same time in three different refuges in sub-Saharan Africa and have similar demographic histories. The results of mismatch distribution analyses were consistent with the demographic expansion of these clades. Analysis of molecular variance (AMOVA) indicated a high level of geographic differentiation at different hierarchical levels. NCPA suggested that the observed distribution of haplotypes at several hierarchical levels within the three major clades is best accounted for by restricted gene flow with isolation by distance. The domestication of sorghum and the introduction of maize in Africa had no visible effect on the geographic patterns observed in the B. fuscamitochondrial genome.

Molecular Ecology (2006) 15, 407–420

doi: 10.1111/j.1365-294X.2005.02761.x

Description of adult and larva of Ichnestoma pringlei n. sp. (Coleoptera Scarabaeidae Cetoniinae), with notes on its biology and ecology

R. Perissinotto et al.

Résumé :

There are at present 10 described species in the primitive genus Ichnestoma Gory & Percheron 1833. These are all phylogenetic and geographic relicts of high evolutionary and conservation interest. The discovery of a new species, I. pringlein  sp., and the first description of a larva (third instar) of this genus are reported here. New information is also presented on their life-cycle and on the dependence of their activities on rainfall patterns, particularly in the semi-arid region of the Karoo. In this region, larvae seem to take 2 years to complete growth and metamorphosis since they feed only after major rainfall events, while remaining inactive and deep underground during dry periods. Adults emerge from their cocoons only after summer rains of at least 15 mm. They lack functional mouth parts and are unable to feed. Their life span is only 3-5 days. Because females are completely flightless and unable to disperse, species of the genus are extremely vulnerable to environmental degradation. It seems likely that they may play a key role in the decomposition of dead plant matter, especially in dry and clay-rich soils where other primary decomposers are scarce.

Tropical Zoology 12: 219-229, 1999

1. Beschreibung der Larven von Dicronorhina micans (DRURY, 1773) und Dicronorhina derbyana subsp. Oberthüri DEYROLLE, 1876 (Coleoptera,Scarabaeidae,Cetoniinae)

Michael Carl und Max Kühbandner

Résumé :

The larvae of Dicronorhina micans (DRURY ,1773) und Dicronorhina derbyana subsp. Oberthüri DEYROLLE,1876 are described. The various morphologically significant components of the larvae are discussed. For the African genus Dicronorhina HOPE, 1837 a preliminary generic diagnosis is presented.

Entomofauna, ZEITSCHRIFT FÜR ENTOMOLOGIE, Band14, Heft 30:489-500 ISSN 0250-4413 Ansfelden,15.Dezember 1993

Phylogeographic pattern and regional evolutionary history of the maize stalk borer Busseola fusca(Fuller) (Lepidoptera: Noctuidae) in sub-Saharan Africa

Sezonlin et al

Résumé :

Busseola fusca (Fuller) (Lepidoptera: Noctuidae) is one of the major cereal pests in subSaharan Africa. Previous phylogeographic investigations on samples collected in Kenya, Cameroon and West-Africa showed the presence of three main clades (W, KI, KII) originated from populations isolated in West and East Africa around one million years ago. Demographic and phylogenetic analyses suggested that this event was followed by local demographic expansion and isolation by distance. These hypotheses were tested by a more comprehensive sampling across B. fusca’s geographic range in Africa. Comparisons of sequences of partial mitochondrial DNA gene (cytochrome b) from 489 individuals of 98 localities in southern, central, eastern and western African countries confirmed the presence of the three main clades. Phylogenetic, F-statistics, demographic parameters and nested clade phylogeographic analyses confirmed that the clades experienced geographic and demographic expansion with isolation by distance after their isolation in three refuge areas. The geographic range of clade KII, already known from East to Central sub-Saharan Africa was extended to Southern Africa. Mismatch distribution analysis and the negative values of Tajima’s D index are consistent with a demographic expansion hypothesis for these three clades. Significant genetic differentiations were revealed at various hierarchical levels by analysis of molecular variance (AMOVA). Hypotheses about the geographic origin of the three main clades are detailed.

Ann. soc. entomol. Fr. (n.s.), 2006, 42 (3-4) : 339-351

Interessanti Reperti Di Cetonia Aurata Pisana Aberr. Fiorii (Coleoptera : Cetonidae)

Camillo Pignataro et al.

Résumé :

Interesting specimens of Cetonia aurata pisana aberr. fiorii (Coleoptera : Cetonidae). The aim of this note was the record of 4 specimens of Cetonia aurata pisana aberr. Fiorii in Terni provincie (Umbria: Central Italy).

Sez.: Arch., St., Sc. Nat. Vol. 22 (2006) 201-203

Surveying an endangered saproxylic beetle,Osmoderma eremita, in Mediterranean woodlands: a comparison between different capture methods

Stefano Chiari• Agnese Zauli• Adriano Mazziotta• Luca Luiselli• Paolo Audisio• Giuseppe M. Carpaneto

Résumé :

Measuring population size is riddled with difficulties for wildlife biologists and managers, and in the case of rare species, it is sometimes practically impossible to estimate abundance, whereas estimation of occupancy is possible. Furthermore, obtaining reliable population size estimates is not straightforward, as different sampling techniques can give misleading results. A mark-recapture study of the endangered saproxylic beetle Osmoderma eremite was performed in central Italy by applying four independent capture methods within a study area where 116 hollow trees were randomly selected to set traps. Detection probability and population size estimates were drawn from each of these four capture methods. There were strong differences in detection probability among methods. Despite using pheromone and beetle manipulation, capture histories were not affected by trap-happiness or trapshyness. Population size estimates varied considerably in both abundance and precision by capture method. A number of 0.5 and 0.2 adult beetles per tree was estimated using the whole data set by closed and open population models, respectively. Pitfall trap appeared the optimal method to detect the occurrence of this species. Since in the southern part of its distribution range, a single population of O. eremite is widespread in the landscape, and includes beetles from more than one hollow tree, conservation efforts should focus not only on preserving few and isolated monumental hollow trees, but should be extended to large stands.

Springer Science+Business Media B.V. 2012

Première évaluation de la biodiversité des Odonates, des Cétoines et des Rhopalocères de la forêt marécageuse de Lokoli (Sud Bénin)

Tchibozo et al

Résumé :

La forêt marécageuse de Lokoli a été prospectéeen 2006 pour établir un premier inventaire des Odonata, Coleoptera Cetoniidae et Lepidoptera Rhopalocera : sur 24  espèces d’Odonates recensées, 13 sont nouvelles  pour  le  Bénin,  parmi  lesquelles  Oxythemis  phoenicosceles Ris, espèce rare, et Ceriagrion citrinum Campion, classée comme vulnérable sur la liste rouge de l’UICN  et justifiant à elle seule la protection du site. Douze espèces de Cétoines ont été recensées, pour la plupart typiquement forestières ; Cyprolais aurata(Westwood) s’avère être une espèce typique de forêt inondée et Grammopyga cincta Kolbe n’est connue au Bénin que de Lokoli et de la vallée de l’Ouémé ; sur 75 espèces de Rhopalocères, 28 sont nouvelles pour le Bénin et 9 seulement sont strictement inféodées à des milieux forestiers. Eurema hapale Mabille, E. desjardinsii regularis Butler et Acraea encedana Pierre, espèces peu communes, sont inféodées aux milieux humides. La forêt marécageuse de Lokoli, unique au Bénin sur le plan écologique et contribuant à la biodiversité régionale, devrait  impérativement être élevée au statut de réserve naturelle. 

Bulletin de la Société entomologique de France, 113 (4), 2008 : 497-509

Chorologie de Protaetia (Potosia) opaca Fabricius 1787 en FRANCE (Coleoptera, Cetoniinae, Cetoniini).

Pierre Tauzin

Résumé :

La distribution du Cetoniinae Protaetia (Potosia) opaca (Fabricius 1787) est précisée sur le territoire français et illustrée sur une carte. L’espèce représentée la plupart du temps par la variété cardui Gyllenhal sur le territoire continental, est localisée surtout dans les secteurs boisés de quelques étages bioclimatiques du domaine biogéographique méditerranéen, dans un intervalle d’altitude ne dépassant rarement les 1000 m. Au plan de son exigence écologique, elle recherche pour son développement les cavités d’arbres feuillus (chêne-liège, Chêne vert, Oliviers et châtaigniers). Son aire de répartition est précisée aussi sur tout le pourtour méditerranéen.

Cetoniimania, Volume N°1 – Juin 2007, 19-47