RUTELINAE   GALLERY 

(Le fameux "scarabée d'or" fait partie de cette sous-Famille)

Chrysina  (RUTELINAE : RUTELINI : PELIDNOTINA)

STAMPS

Larve de Rutelinae

Les belles "américaines" !

Chrysina beyeri

Chrysina lecontei

Chrysina gloriosa

Et une merveilleuse équatorienne : Chrysina dzidorum Arnaud

Chrysina cavei du Honduras

Les hétérosternides :

 

Macropoides sp. du Guatemala

Vous trouverez d'autres magnifiques photos de Rutelinae du Guatemala sur le site de notre collègue et ami José Monzon :

http://www.josemonzongt.com/graficos/coleoptera/chrysina.jpg

Ces 5 dernières photos proviennent d'un très intéressant site thaïlandais :

http://www.malaeng.com/

Anisoplia villosa, une bien de chez nous ...

Popillia japonica, l'envahisseuse

Serra do Caraça, MG., Brésil
Sans doute une Macraspis clavata; les élytres sont bien plus clairs et éclatants sur l'insecte vivant
(Image empruntée à notre collègue brésilien Leo Pimenta, auteur d'un site avec de superbes photos)

Gleaming beetles from Central America attract insect enthusiasts and offer hope for saving a priceless habitat.

By Ronald D. Cave Photographs by David Hawks


In a world among the clouds, entomologist David Hawks and I keep watch for the brilliant jewel scarabs of Honduras’s tropical montane forests. We wait like fishermen with nets cast, standing beside lighted white bedsheets spread on the ground. When the jewels fly in, raining color against the cloth, we feel like kids again.
We collect jewel scarabs—to estimate their population sizes and study their ecology and distribution. Dave joined me here in 1992, bringing his passion for jewels with him. Since then we and others have found seven new species in Honduras, and we rediscovered a species once thought extinct.
Not surprisingly, scarabs have also seduced commercial collectors. While many sell for a few dollars, a bright red specimen might fetch $200, the finest gold, $500. With such a bounty on scarab heads, some conservationists worry that populations could be depleted. But our research suggests otherwise.
Catching insects isn’t like hunting jaguars. Millions of jewel scarab eggs, larvae, and pupae remain underground, while collectors take only adults. Meanwhile, the journey to scarab habitat weeds out all but the most determined. Many cloud forests are a strenuous trek away; others require a helicopter.
The biggest threat to scarabs is not insect hobbyists but loss of habitat as tropical forests are converted to farms. We believe that regulated beetle collecting by local people—and, in time, beetle farming—could actually help slow this process. It has been successful elsewhere with butterflies and other insects.
If a cottage industry developed, some local people might find that a treeless patch of land is worth less in the long run than a standing forest full of jewels.
Get the whole story in the pages of National Geographic magazine.

A shining example of a jewel scarab beetle, Chrysina strasseni hangs out on a leaf in Honduras’s Pico Pijol National Park. Jewel scarabs are favorites of many insect collectors, who will pay $5 to $500 apiece, depending on the specimen. A perfect C. strasseni might go for $200, but this one was collected for science, not for sale.

A Chrysina quetzalcoatli is freed in Cusuco National Park, leaving a fecal trail. “They almost always do that before they take off,” says entomologist David Hawks. Hawks and collaborator Ronald Cave are estimating population sizes of jewel scarabs in order to assess how collecting by scientists and bug enthusiasts may affect beetle numbers.

Chrysina cavei was named by entomologist David Hawks of the University of California at Riverside after collaborator and friend Ronald Cave. “Ron always seems to be cold and bundled up when we’re working in the cloud forests,” says Hawks. “This species’ blue tarsi remind me of Ron’s perpetual cold feet!”

Dotted with gold, Chrysina spectabilis was thought to be extinct when scientists found populations thriving in the pine and oak forests of Cusuco National Park in Honduras. One of the largest of the jewel species, the beetle’s “spots” are actually shallow impressions that appear gold because of structure, not pigmentation.

An iridescent jewel, Chrysina victorina from Oaxaca, Mexico, was one of the first described species of jewel scarabs. Says entoentomologist David Hawks of the fluorescent green beetle: “There’s no special light behind it. It just seems to glow.”
 

Chrysina resplendens de profil

Allez voir le magnifique site de A. Solis sur les Chrysina ( = Plusiotis) du Costa Rica :

http://www.inbio.ac.cr/papers/Plusiotis/Chrysina.html#Presp
 

aussi : http://members.home.nl/h.veenendaal/beetles, qui semble en cours d'élaboration...
 

et sur tous les scarabées (dont les Rutelinae; magnifiques photos...!) :

http://living-jewels.com
http://www.beetles-experience.com

Sur tous les insectes des USA et du CANADA (avec beaucoup de belles photos de RUTELINAE néarctique) :
http://bugguide.net

Une nouvelle superbe galerie de nos collègues américains :

http://www-museum.unl.edu/research/entomology/Guide/Scarabs%20Gallery/index.html
 

D'autres très belles photos sur le site de ce collègue français :

http://www.philippeblanchot.com/

Anoplognathus australiens ou Chrismas beetles :

Ces autres superbes Rutelinae "sortent", en Australie, au moment de Noël, durant leur été à eux, notre hiver à nous !

Les 4 photos qui suivent sont empruntées au très beau site de notre collègue australien Peter Chew :

http://www.geocities.com:80/pchew_brisbane

Ces deux dernières Christmas beetles d'un auteur inconnu, trouvées sur Flick

Beaucoup d'autres Rutelinae australiens sur :

http://pagesperso-orange.fr/virtual-beetles/indexb.html

Chrysophora chrysochlora  Latreille

Le rêve !

You may well ask “Just what the heck is a weevil person doing writing an article in Scarabs?”

Well, this past summer I had the opportunity to visit the southern state of Chiapas, México and on one fine sunny day high in the mountains I experienced what can only be described as the scarab collector’s wet dream! Let me tell you about it. For a number of years I have been working in Chiapas in collaboration with ECOSUR, a small college located in San Cristobal de las Casas in the Altos of Chiapas. My project has been surveying the leaf litter inhabiting weevils of mid and high elevation forests. We’ve been fortunate to visit and sample numerous forests, some only small fragments, and many otherwise inaccessible unless one has proper permission from the indigenous inhabitants. Often this requires meetings with officials from the local ejido, then a town meeting to approve permission. But enough of logistics, let’s get to the real story!One area we have worked is the La Sepultura Biosphere Reserve, located about 25 kilometers southwest of the town of Villaflores in the Sierra Madre de Chiapas of western Chiapas. We work out of a small town named Sierra Morena at about 1,200 meters elevation. Sierra Morena sits in a valley between two higher mountains, Cerro Bola to the south and Tres Picos to the north. Cerro Bola (16º.13464 N 93º.60077 W) is just under 2,000 meters and is a nice sharp peak with a definite summit. Leaf litter faunas change as one moves up in elevation so this one day, June 14, we thought it worthwhile to spend the 3 hours to walk up to the peak and take some samples, which we suspected would be quite different from the samples from between 1,400 meters and 1,600 meters we had previously taken. The day was sunny and the rains had not yet arrived so things were quite dry. Quite a few trees had not leafed out and the litter was dry and sandy. When we arrived at the peak we noticed that the litter here was moister, perhaps due to clouds collecting at the summit and depositing moisture in the form of mist or light rain. Within a few minutes of our arrival my keen coleopterological eye spotted a large green beetle on a leaf about 10 feet up in one of the taller trees right at the peak. I asked one of my much younger, spry and lighter colleagues if he could climb up that tree and fetch me that beetle. “Sure” he said and promptly scaled the trunk. As he reached out for the beetle he commented “There’s another one over there” and pointed to another, clearly visible on another leaf. He then noted as he scanned the upper foliage of the tree that “there are quite a few of these up here.” I approached him and peered up to get a better look. Sure enough I could now see about 10 or more beetles clinging to the branches and leaves of the tree. “Why don’t I just shake the tree and they should fall down?” he asked. I agreed that this seemed a suitable arrangement, so he shook the tree. At this point I must suggest that the true scarab enthusiast find a comfortable seat, sit down, close your eyes, relax and try to imagine this scenario. Picture the tree shaking and the large, bright green beetles falling. First one or two, then 10, 20… then a hundred, then hundreds. It was literally raining Chrysina!!

As they fell, some took wing, some hit the ground and stayed there, some ended up on my clothes and on me, some fell onto lower vegetation. Then a few seconds later, as if on some magical cue they all started to fly. At first I grabbed a few from my clothes but soon my hands were full and being a weevil guy, my biggest vial would only hold half a hind leg of one of these easts, so employing my quick PhD-given thinking skills, I decided to use one of the pillow cases that I use for bagging the leaf litter samples downhill. Stuffing the ones on my hands into the bag, I collected about 20 or so more on my body and then started picking them off the lower vegetation and ground. In all I must have grabbed about75 specimens in about 5 minutes of frenzied collecting! For every one I got, five flew away. Not to mention that the tarsal claws on these guys were like fine needles, easily piercing the skin and drawing blood when one pulled them off your arm or hand. But when one sees hundreds of Chrysina within arm’s length, pain is not a factor, right ? By now the reader will be breathing heavily and in need of a cool drink, perhaps if one is of advanced years, even a sedative or a nap. So, let me sum up. Benigno Gómez of México has confirmed the species as Chrysina triumphalis Morón. At the present time, all specimens are still in Mexico. The beetles were not mating and did not appear tobe feeding on the tree. I think it’s significant that this was at the end of the dry season and perhaps the beetles had congregated in a moister area to await the onset of rains. Even for a weevil guy, this was a very exciting day, but I can only imagine the range of raw emotions racing through the minds of you scarab collectors at this climactic moment. I think it’s significant that this was at the end of the dry season and perhaps the beetles had congregated in a moister area to await the onset of rains. Even for a weevil guy, this was a very exciting day, but I can only imagine the range of raw emotions racing through the minds of you scarab collectors at this climactic moment.  

  (Dans l'excellente revue Scarab's de nos collègues américains)

Notre collègue et ami Conrad Gillett au Belize (Las Cuevas) :

 But it was not only dynastids that proved to be diverse at the lights. The rutelids were alsoery impressive and consisted among others of Macropoides crassipes, Macropoidelimus mnizechi, the newly described Epichalcoplethis monzoni  Soula (a few of our specimens were subsequently designated paratypes), Pelidnota belti, Pelidnota centroamericana, Pelidnota prasina (or similar species) (Figure 17). On one occasion we were able to take a portable battery powered light quite deep into the forest and this yielded Chrysina (Plusiotis) diversa, which I believe is also a new country record.

N

*

Chrysina beyeri ou robot ??

Voir le très curieux site : http://www.insectlabstudio

Le Genera Insectorum d'Ohaus (1934) :

RUTELINAE  HOMALOCHILIDAE : RUTELINI

De gauche à droite et de haut en bas :

Mesystoechus ciliatus Water., Cotalpa   lanigera L., Byrsopolis  castanea Burm., Areoda banksi Lap., Paracotalpa  granicollis  Hald., Hoplognathus   kirbyi  M. L., Macropoides mniszechi  Sallé, Parachrysina  trucquii  Thoms., Parisolea   pallida  Cand., Xenoproctis ohausi  Kolbe, Acrobolbia  macrophylla  Ohaus, Parhoplognathus   mexicanus  Ohaus, Peltonotus  nasutus   Arrow, Heterosternus  rodriguezi  Cand., Eremophygus philippii Ohaus.
 

De gauche à droite et de haut en bas :

Oogenius  chilensis  Ohaus, Hoplopelidnota   candezei  Bates, Mesomerodon  spinipenne   Ohaus, Plusiotis adelaida  Hope, Chrysina   erubescens  Bates, Pseudogeniates  richteri   Ohaus, Pelidnotopsis  plusiotina  Ohaus, Chrysophora chrysochlora  Lat., Ectinoplectron   oryctoides  Ohaus, Homonyx  chalceus   Blan., Heteropelidnota  kuhti  Ohaus, Mecopelidnota   arrowi  Bates, Catoclastus  chevrolati   Sol., Pelidnota  sumptuosa Vigors, Homothermon   serrano  Ohaus.
 

De gauche à droite et de haut en bas :

Lasiocala  fulvohirta  Blanch., Peperonota   harringtoni  Westw. (ssp. assamensis  Ohaus), Dicaulocephalus   fruhstorferi  Felsche, Ceroplophana  modiglianii Gestro (ssp. borneensis  Ohaus), Rutelarcha quadrimaculata Water., Parastasia  burmeisteri  Ohaus, Oryctomorphus maculicollis  Guérin mâle (vers DYNASTIDAE !), Oryctomorphus maculicollis  Guérin femelle, Desmonyx   humeralis  Arrow, Fruhstorferia sexmaculata   Kraatz, Metapachylus  sulcatus  Bates, Rutela   histrio  Sahlbg., Rutelisca  florhi Bates, Chlorota  haemorrhoidalis Olivier, Cyphelytra ochracea Water.
 

De gauche à droite et de haut en bas :

Crathoplus  squamiferus  Blanch., Thyridium   sapphirinum  Non., Hypaspidius  crassus   Ohaus, Acraspedon  sulcipenne  Waterh., Chalcentis   victima  Germ., Ptenomela  gratiosa   Sharp, Aequatoria  pretiosa  Brem., Calomacraspis   haroldi  Cand., Vayana  bicolor  Ol., Anticheira  adamsi  Waterh., Lagochile   trigona  Herbst, Telaugis  aenescens   Burm., Paratelaugis  robusta  Kirsch, Chasmodia   divisa  Ohaus, Macraspis  splendida Fabr.
 

Genera de Machatschke  (1957) :

RUTELINAE  HOMALOCHILIDAE : ANOMALINI

De gauche à droite et de haut en bas :

Anomala  dubia  aenea De Geer, Anomala   aulax  Wied., Anomala  atriplicis  F., Mimela aurata  F., Mimela   anopunctata Burm, Mimela  chinensis Kirby, Mimela bolosericea  F., Anomala viridis  F., Anomala  expansa  Bates
 

De gauche à droite et de haut en bas :

Anomala  exitialis  Pér., Anomala calcarata  calcarata  Arrow, Anomala   nigrovestita  Arrow, Callisthetus marginatus  F., Tricopertha hirtella   Brullé, Blithopertha  campestris maculata   Muls., Epectinaspis guatemalensis  Ohaus, Exomela  orientalis  Waterh., Micranomela   cingulensis Arrow

De gauche à droite et de haut en bas :

Spinanomala  unispinosa  Ohaus, Trigonocnemis hauseri  Kraatz, Stomanomala  epistomalis  Kolbe, Strigoderma arboricola  F., Pentanomala alluaudi Ohaus, Phyllopertha  horticola L., Anomala bolacoides  Bates, Singhala tenella  Blanch., Adoretosoma  chinense atritarse  Fairm.

De gauche à droite et de haut en bas :

Popillia  virescens  Hope, Popillia bipunctata F., Popillia  japonica Newm., Popillia nasuta  Newm., Popillia  dorsigera   Newm., Popillia  beniana  Kolbe, Popillia   ducatrix  Kolbe, Macropopillia  arrowi   Ohaus, Callistopopillia  iris  Cand.
 

De gauche à droite et de haut en bas :

Spilopopillia  sexguttata  Fairm., Popillia   callewaerti  Bend., Trichanomala  fimbriata   Newm., Malaia  semperi  Kraatz, Nannopopillia   damarae  Ohaus, Gnatholabis  suturalis   Lap., Anodontopopillia  subvittata  Burm., Trichopertha  aegyptica  Blanch., Pharaonus   fasciculatus  Burm.

De gauche à droite et de haut en bas : 

Malaia nigrita  Boisd., Dicranoplia  deserticola   Lucas, Callirhinus  metallescens  Blanch., Tropiorhynchus  umbrinus  Mach., Rhinyptia   indica  Burm., Pararhinyptia infuscata   Burm., Anisoplia  segetum  Herbst, Anisoplia   agricola  Poda., ADORRHINYPTINI, Adorrhinyptia   dorsalis  Burm.
 

Genera de Machatschke  (1965) :

RUTELINAE ORTHOCHILIDAE
 

De gauche à droite et de haut en bas :

SPODOCHLAMYINI, Spodochlamys curvibrachialis  Ohaus, ANOPLOGNATHINI, Repsimus  manicatus  (Swartz), Anoplognathus   velutinus  Boisduval, Schizognathus  macleayi Fischer, Phalangogonia sperata  Sharp, Platycoelia   marginata  Burm., Brachysternus  spectabilis   Erichson, Metadorodocia  vittata  (Waterh.), Paradorodocia  hystrix  (Fairm.)

De gauche à droite et de haut en bas :

ADORETINI, Adoretus tessulatus Burm., Lepadoretus boops (Wiedemann), Chaetadoretus  punctipennis (Fahraeus), Pseudadoretus  validus  Semenow, Trigonochilus   coriaceus Brenske, Prodoretus  indicus   Machat., Bolax  magnus  Bates, Trizogeniates  laevis  Camerano, Evanos   villatus  Latreille