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.

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

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

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

Larval growth rates and sexual differences of resource allocation in the cetoniine scarab Mecynorhina polyphemus Fabricius 1781 (Coleoptera: Scarabaeidae: Goliathini)


Résumé :

Larval ontogeny of the scarab Mecynorhina  polyphemus was monitored throughout all instars, and larvae were weighed at 7-day intervals. Durations of the prepupal, pupal and postpupal stages were recorded. Larvae increase their body masses over 300 times during ontogeny. Male imagines are larger than females, and this is primarily a function of faster growth rates during instar III, resulting in significantly heavier larvae at the end of this instar. The durations of the three instars are not significantly different in males and females, but the duration of the prepupal and postpupal phases is significantly longer in males. There is a strong correlation in both sexes between maximal larval mass and the mass of the imago, but larval mass–imago mass scales with significantly different slopes in males and females. Male larvae must allocate increasingly more resources into production of cephalic horns with increments in larval mass, requiring differently proportioned pupal chambers.

Journal of Natural History, 2013, Vol. 47, Nos. 19–20, 1287–1307

New Records of Termite Hosts for Two Species of Hoplopyga, With Notes on the Life Cycle of Hoplopyga brasiliensis (Coleoptera: Scarabaeidae: Cetoniinae)

Anderson Puker et al

Résumé :

We provide the first report of larvae of Hoplopyga brasiliensis (Gory and Percheron) and H. singularis (Gory and Percheron) (Coleoptera: Scarabaeidae: Cetoniinae) in nests of Corni termes cumulans (Kollar) (Isoptera: Termitidae: Syntermitinae) and Diversitermes diversimiles (Silvestri) (Isoptera: Termitidae: Nasutitermitinae), respectively. We also provide new information on the life cycle of H. brasiliensis and the feeding behavior of adults of H. singularis. In total, 44 larvae of H. brasiliensis were found in a single nest of C. cumulans in a pastureland in Coimbra, state of Minas Gerais, Brazil. Larvae of H. singularis were found under nests of D. diversimiles at two urban parks in the state of Parana, Brazil. ≈15 larvae of H. singularis in different stages of development and some opened pupal cells were found in some nests of D. diversimiles. We increase the number of known termitophilous Hoplopyga species to three and discuss such relationships in light of published data and new information provided here.

Ann. Entomol. Soc. Am. 105(6): 872-878(2012)

Description of a new Eudicella daphnis (Buquet) from Eastern Africa (Scarabaeidae, Cetoniinae)


Résumé :

A new Eudicella (Eudicella) daphnis is described from Eastern Africa and diagnosed against the taxa that mimic it. A revised dichotomic key to all Eudicella (Eudicella) species and subspecies is presented.

Cetoniimania. NS, N°l octobre 2010 – 25-38

Biodiversity of Cetoniinae beetles (Coleoptera: Scarabaeidae) in introduced and native habitats in the Brazilian Atlantic Forest

Anderson Puker et al

Résumé :

The ecology of the beetles of the subfamily Cetoniinae (Coleoptera: Scarabaeidae) is relatively poorly known worldwide. In the neotropics in particular, there are far less studies than in other biogeographic regions. In part due to this lack of knowledge, cetoniines are not considered indicators of habitat quality in the Neotropical region. In this study, we compare the abundance, diversity, and species composition of cetoniines in three different habitats in Brazil: two exotic (Brachiaria pasturelands and eucalyptus plantation) and one native (Brazilian Atlantic Forest). We also provide diagnostic images of both sexes and of the genitalia of males of all species to facilitate species identification in further studies. The beetles were collected weekly from September to December 2012 with traps baited with fermented fruit, in five eucalyptus plantations (Eucalyptus grandis Hill ex Maiden), five exotic pasturelands (Brachiaria spp.), and five patches of Brazilian Atlantic Forest. The abundance and diversity of cetoniines was found to be lower in the eucalyptus plantations and about the same in the forest and pasturelands. The low diversity found and the little information available on the ecology of Neotropical Cetoniinae is insufficient to propose these beetles as candidates for the habitat evaluation in Brazil.

Entomological Science (2014) 17, 309-315

Doi: 10.1111/ens.12069