Forum Entomologi Italiani

Ciao,

Un po di giorni fa ho riccevuto vivo questo esemplare di Gibbium trovato in Bucuresti in 3.marzo.2023 ... prima volta che vedo uno (ancora devo trovare io uno).

Io ho determinato questo come un possibile Gibbium aequinoctiale. Qualcuno mi puo aiutare?
E qualcuno puo dire se sia maschio o femmina? Se questa e femmina forse si puo dire anche come riprodure questi ... voglio avere una seria piu grande .



Grazie!
Cosmin

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Cosmin-Ovidiu Manci
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cosmln's place - my blog
just insects
Dragonflies of Romania

Bellooooo Cosmin!
Però è difficile l'identificazione corretta:
https://coleonet.de/coleo/texte/gibbium.htm
Ciao

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Andrea Carlin, Pergine Valsugana (TN) carlin.andrea(AT)gmail.com

Nota: tutti gli esemplari inseriti nelle discussioni aperte da me sono da ritenere "Andrea Carlin legit" se non diversamente specificato.

Conosco direttamente solo Gibbium psyllioides.
In questa specie le setole tra gli occhi sono "squamiformi".
Anche il tuo esemplare (prima foto) sembra così.
G. aequinoctiale dovrebbe avere le setole semplici.

Ciao
Giuseppe

Grazie!
Dopo che preparo esemplare vediamo piu chiaro ... conosci per caso se sia femmina? Se si, come fare un ambiente per lui per avere piu esemplari?

Ciao!

_________________
Cosmin-Ovidiu Manci
**********************
cosmln's place - my blog
just insects
Dragonflies of Romania

...ti conviene farti spedire altri esemplari dal tuo amico e tentare un allevamento o per avere un po di esemplari per te , perché tanto cio' che trovi in rete e' solo per disinfestazione (almeno quello che ho trovato io)

qui c'e' qualcosa da tradurre:

Insectes du Patrimoine Culturel

Up to recently, Gibbium psylloides belonged to the Ptinidae family, but Ptinidae have now been included into the Anobiidae family. These inconspicuous insects, which shy away from light, rather thrive in quiet, dark places of warehouses and houses (attics, barns, cellars). Thanks to their smooth, shiny, round-shaped aspect, they are highly characteristic and easily recognisable. Adults are sometimes mistaken for small spiders, but the difference between them can easily be told thanks to their 3 pairs of legs (Arachnidae have 4 pairs of legs) and to their antennae. Gibbium psylloides cannot fly for their elytra are sealed together, and they move around rather slowly. They feed on dry organic debris of plant or animal oroigin. They can cause fairly important damage in fabrics and books, and minor damage in stored foodstuffs. Yet the damage they cause is considered as reaching a lesser extent than the damage caused by related species. They get adapted to cool climates quite easily and they can survive without food for long periods of time; adults can live up to 1 year. Some Hymenoptera belonging to the Bethylidae family can infest their larvae.

Detia Degesch GMBH

Biology:

This brown-red beetle is 2 to 3 mm long and cannot fly. It has an extremely curved, spherical back and a spider-like appearance, which is why it is sometimes mistaken for a tick. Its legs and antennae are fine and have a thick coating of golden yellow hair. It can be found primarily in old buildings with dark and damp areas, in bakeries and in grain stores. The beetles and larvae are omnivores and infest many different items, including grains, grain products, drugs, furs, hay and animal feed. They are capable of spinning and pupate in a cocoon. The beetle is extremely agile, likes damp environments and is sensitive to light, meaning that it roams when it is dark. It cannot fly as the wing covers are joined together and it does not have hind wings at all. The beetle was originally native to warmer regions, but is now found all over the world. However, in Central Europe, it stays close to people (bakeries, living areas, etc.) and cannot hibernate outdoors.

Damage:

When it feeds on foodstuffs, the damage it causes is minimal. The beetles primarily cause damage to material, such as textiles, leather, paper, packaging material, insulation material, etc. They often develop on filling material in false floors and ceiling cavities of old buildings and then become very troublesome when they reproduce en masse. They often appear en masse, particularly in renovations when the framework is exposed again in buildings.

Landesgesundheitsamt Baden-Württemberg

Der zur Familie der Diebskäfer (Ptinidae) gehörende, lichtscheue und feuchtigkeitsliebende Kugel- oder Buckelkäfer (Gibbium psylloides) zählt zur Gruppe der Materialschädlinge, die - insbesondere bei massenhaftem Auftreten - an vielen Materialien nicht unerheblichen Schaden anrichten können. 50-100, zuerst weiße, später gelbliche, 0,6-1 mm lange, mit einem klebrigen Sekret überzogene Eier werden pro Weibchen im Zeitraum von mehreren Monaten lose an befallene Waren gelegt. Nach einer Eiruhezeit von ungefähr 14 Tagen schlüpfen die Junglarven. Die nach ca. drei Häutungen erwachsenen, weißen bis hellbraun und spärlich behaarten, spinnfähigen Larven verpuppen sich in einem gesponnenen Kokon. Bei Temperaturen um 23° C und einer relativen Luftfeuchtigkeit um 70 % dauert die Entwicklung ca. 96 Tage. In gemäßigten Breiten entwickelt sich nur eine Generation pro Jahr. Eine Überwinterung ist in allen Stadien möglich

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Ciao
Vittorio


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Trovato solo questo.
Posto questa in una scattola con qualcosa vegetale e forse in mesi avro di piu

Grazie!

_________________
Cosmin-Ovidiu Manci
**********************
cosmln's place - my blog
just insects
Dragonflies of Romania

Hi Cosmin, they live on "...Damage:

When it feeds on foodstuffs, the damage it causes is minimal. The beetles primarily cause damage to material, such as textiles, leather, paper, packaging material, insulation material, etc."
Try to feed it with proper materials.

....non riesco proprio a trovare la differenza tra il maschio e la femmina, sicuramente in qualche sito a pagamento si riesce a trovare qualcosa in più.....ma la differenza tra le due specie si può vedere anche nel sito tedesco:

https://coleonet.de/coleo/texte/gibbium.htm

....prova a mantenerla forse è piena di uova e sei fortunato....

....a proposito quell' Aphilia crassipes che ho fotografato anni fa e che poi ho liberato in un grosso vaso.... chissà....forse ci trovo una piccola popolazione.....

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Ciao
Vittorio


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