Top Tweets for #Passalidae
A Scarab Feeding on Another Scarab: First Observation of Necrophagy by Canthon histrio (Saint-Fargeau & Audinet-Serville, 1828) on a Dead Passalidae
https://t.co/5KDo2e74Wt
#entomologicalcommunications #entcom #seb #coleoptera #scarabaeidae #passalidae
ゴーリーオバケクロツヤムシ
Proculus goryi
グアテマラに産するクロツヤムシ科の最大種🇬🇹80mmを超す大型個体は、もはや虫ではない何かに見えてきます❗️
#昆虫館バー #標本 #Passalidae
#Beetles and their #phoretic #mites: Beetles of the #Passalidae (Scarabaeoidea) represent a biological peculiarity within the Coleoptera: they form #social colonies (better subsocial mostly focused in #broodcare), in which all stages of development live in a tunnel system in wood. The beetles are wood eaters and prepare crushed wood mixed with saliva for their brood. As in the social Hymenoptera, the burrow systems of the Passalidae are attractive habitats for phoretic #nematodes and mites.
The advantage for phoretic organisms in nests of social insects is that such a nest has a variety of tiny microhabitats that can serve as a suitable development site for mites and nematodes. For the phoretic stage of #distribution, this means living in a perfectly developed "subway system" , where there is always a "train line" that heads for the nearest suitable microhabitat, if you as a mite are lucky you might even catch a taxi shuttle that takes you without a stopover directly to the final destination. Because phoretic organisms such as mites are adapted through #evolution to attach to larger insects or arthropods by means of a dispersal stage with the sole aim of being dispersed by them. Different stages in different taxa of mites have become specialized in the dispersal mode, for example deutonymphs or adult animals.
Phoretic mites can usually be recognized by the fact that they do not feed on their #hosts. #Development and #feeding take place at the target site where the mite leaves its carrier, but note: in case they indeed leave the living transporter again (see further below) .
On beetles of the Passalidae, phoretic mites have been described from different taxa, namely members of the #Mesostigmata (#Parasitiformes), the Paraphyletic #Oribatida (Acariformes, Sarcoptiformes) and #Astigmata, e. g. #Canestriniidae or #Histiostomatidae (#Acariformes, #Sarcoptiformes). I assume that the diversity of mites in individual species of the Passalidae is still largely unexplored.
Due to their size, mites of the #Megisthanidae (Mesotigmata) are particularly conspicuous on adult Passalidae. The predatory mites need areas with beetle frass for their development. Life-cycle information on #Megisthanus #floridanus was published by Butler & Hunter (1968): https://t.co/grjEMq0JCT
But also #Klinckowstroemiidae represent Mesostigmata phoretically on Passalidae, as e.g. published by J. Schuster et al. (2023): https://t.co/JEnk3vx9xG
Mites of the Oribatida were not closer studied for a long time in regard of #phoresy as that ability was only poorly known. A significant pioneering work is by R. Norten (1980). Since then only few findings on phoretic Oribatida were published, e.g.on #Paraleius #leontonychus on #barkbeetles, where I co-authored: Pernek et al. (2011): https://t.co/oH3aEsfRTr
Meanwhile the recognition of phoretic oribatids increased and new species were even described from Passalidae as in Ermilov (2019): https://t.co/TyeRxvRZFY
As is all too often the case in modern acarological research, there is a lack of biological data on all those mite species that do not appear as human pests. Because actually, as in the 1968 paper cited above, it would have to be examined under laboratory conditions where exactly the mites actually continue to develop to understand their #lifestyle.
Some of the mites declared as phoretic might be #necromenic instead, which derived from phoresy: as I described for #Histiostoma #polypori (Histiostomatidae, Astigmata) in #earwig nests (2009): https://t.co/ka8P4KbGcm
Astigmata e.g. found on Passalidae: Canestriniidae in the paper by Summers & Schuster (1981): https://t.co/9XklwXJJuu
Also #Acaridae and Histiostomatidae were found on #Mexican Passalidae, paper by P. L. Barrios-Torres et al. (2015): https://t.co/q14vlFpKGu
© #StefanFWirth Berlin 2023
Photo: Adult Bessbug (#Odontotaenius #disjunctus), author PiccoloNamek, 2005, licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
The Brachypterous Species of Passalus (Pertinax) (Coleoptera: Passalidae), with the Description of a New Species from Sierra Nevada de Santa Marta, Colombia
https://t.co/YCmeZJCTSO
#neotropicalentomology #seb #systematics #morphology #physiology #coleoptera #passalidae #colombia
The Brachypterous Species of Passalus (Pertinax) (Coleoptera: Passalidae), with the Description of a New Species from Sierra Nevada de Santa Marta, Colombia
https://t.co/YCmeZJCTSO
#neotropicalentomology #seb #systematics #morphology #physiology #coleoptera #passalidae #colombia
#NuevaPublicación: Edwin Ariza-Marín y Germán Amat-García: Morphometric changes in #wings of #BessBeetles (#Coleoptera: #Passalidae) related to #elevation: a case of study in the Colombian #Andes
#ColeopterólogosDeColombia #ColeópterosDeColombia
https://t.co/nREnu2zcrJ
Además, participó en la descripción de 32 especies nuevas de #Coleoptera, incluidas en nueve géneros de las familias #Scarabaeidae y #Passalidae.
➡️https://t.co/XkHxwCKhal
Seguimos recordando al Dr. Enio Cano (1964-2021), entomólogo guatemalteco que contribuyó de gran manera con el conocimiento de #Scarabaeidae y #Passalidae de #Guatemala 🇬🇹. Agradecemos a @BionomiaTrack por la valiosa ayuda en la generación del perfil del Dr. Cano 💚.
#EncontroDeColeoptera
Bioacústica e Comportamento em #Passalidae
Ingrid Mattos - Universidade Federal do Rio de Janeiro
#NuevaPublicación liderada por Edwin Ariza Marín (@EdwinArizaMarn1)
#ColeopterólogosDeColombia #MorfometríaGeométrica #EscarabajosDeLaMadera #Passalidae
Filogenia y sistemática de los escarabajos degradadores de madera neotropicales (#Coleoptera: #Passalidae: #Passalinae), por el Dr. @BezaCristian y colaboradores.
#InsectosGt 🇬🇹
¡Hoy se celebra el #DiaMundialDeLosAnimales! 🌎🐞🦎🦜🦇🦋. En el #PortalDeBiodiversidadGt ya pueden explorar más de 15 mil registros de especímenes y de observaciones de la #Fauna de #Guatemala, incluyendo el hermoso #Passalidae en la publicación 💚.
➡️https://t.co/5JYlGvxuUw
And here is the answer. As a couple of you guessed and @Beetle_Guy and @Bertonemyia certainly knew it is the immature stage of Odontotaenius disjunctus (#Coleoptera: #Passalidae). You can only see 2 pairs of legs because the hind legs are reduced and used for stridulation.
La familia #Passalidae con cerca de 680 especies descritas. tiene #ciclo_biológico en el interior de los troncos en descomposición, allí se alimentan, incorporando #materia_orgánica en los ciclos de nutrientes.
#Colombia registra 65 especies, con límite acerca a los 3000msnm
Cristian Beza (@BezaCristian) gives us more background on his ongoing passalid studies of the New World. #Coleoptera #Passalidae #Entsoc2019
If anyone feels like identifying #Passalidae from Sri Lanka & can read German:
Endrödi, S. 1971. Coleoptera: Passalidae von Ceylon. Entomologica Scandinavica Supplement 1: 259-262.
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