External exoskeletal cavities in Coleoptera and their possible mycangial functions

@article{Grebennikov2010ExternalEC,
  title={External exoskeletal cavities in Coleoptera and their possible mycangial functions},
  author={Vasily V. Grebennikov and Richard A. B. Leschen},
  journal={Entomological Science},
  year={2010},
  volume={13}
}
This paper reviews the occurrence of external exoskeletal cavities in beetles and provides critical reassessment of their possible mycangial function. In most reported cases, the decision to attribute mycangial function to exoskeletal cavities was based solely on the combination of two factors: (i) observation of these cavities on beetle's body; and (ii) knowledge that this particular beetle species uses fungi as a food source. Such reasoning resulted in the assumption, occasionally premature… 
Co-adaptations between Ceratocystidaceae ambrosia fungi and the mycangia of their associated ambrosia beetles
TLDR
Four unrelated lineages of ambrosia beetles with unique mycangia were found to carry ambrosian fungi in five genera of Ceratocystidaceae, which supported six new genera and seventeen new species of fungi.
New mid-Cretaceous cryptic slime mold beetles and the early evolution of Sphindidae (Coleoptera: Cucujoidea)
TLDR
The new fossils provide evidence that basal crown slime mold beetles begun to diversify by the mid-Cretaceous, providing a valuable calibration point for understanding timescale of sphindid co-evolution with slime molds.
Phylogeny of the Coleoptera Based on Morphological Characters of Adults and Larvae
Abstract. In order to infer phylogenetic relationships within the extraordinarily speciesrich order Coleoptera, a cladistic analysis is performed, in which 516 adult and larval morphological
Catalogue of Biphyllidae (Coleoptera) of the World
TLDR
A catalogue of all known species of the family Biphyllidae is presented, with synonyms, taxonomic notes, bionomy and distribution, and Twenty three new combinations are proposed, being transferred from Diphyllus Berthold, 1827.
An unexpected clade of South American ground beetles (Coleoptera, Carabidae, Bembidion)
TLDR
Phylogenetic relationships of the Antiperyphanes Complex of the genus Bembidion are inferred using DNA sequences from seven genes, finding that a small set of morphologically and ecologically heterogeneous species formed a clade, here called subgenus Nothonepha.
Larval Morphological Adaptations of Leiodes cinnamomea (Panzer, 1793) (Coleoptera: Leiodidae: Leiodinae)—Obligatory Feeder of Tuber Species
TLDR
This study provides the first detailed study of morphology of larval stages of Leiodes cinnamomea, which is an obligatory feeder and a pest of the economically valuable truffle, and found that larvae had unique morphological characteristics.
Phylogeny and placement of Boganiidae (Coleoptera, Cucujoidea) with a review of Australian and New Caledonian taxa
TLDR
A phylogeny of the cucujoid family Boganiidae (Coleoptera) is inferred for the first time based on a parsimony analysis of 102 morphological characters, divided into two main clades, Boganiinae and Paracucujinae, each supported by a series of synapomorphies.
Symbiotic yeasts from the mycangium, larval gut and woody substrate of an African stag beetle Xiphodontus antilope (Coleoptera: Lucanidae)
TLDR
It is shown that the predominant mycangial yeasts of a South African endemic Lucanidae beetle, Xiphodontus antilope, also form the predominant yeasts within the larval gut and the woody substrates around the larvae and pupae.
...
...

References

SHOWING 1-10 OF 119 REFERENCES
Morphology, phylogeny and classification of adult Endomychidae (Coleoptera: Cucujoidea)
TLDR
Results of the analysis suggest that the Endomychidae form a monophyletic taxon, which maybe divided into 12 subfamilies: Danascelinae (subfam. nov.), Xenomycetinee, Endomychinae, Anamorphinae , Merophysiinae , Lycoperdininaes, Stenotarsinae and Leiestinae; and a phylogeny of the family is hypothesized.
Good-bye Scydmaenidae, or why the ant-like stone beetles should become megadiverse Staphylinidae sensu latissimo (Coleoptera)
TLDR
The results strongly suggest that ant-like stone beetles do not form an independent family, but are morphologically modified members of Staphylinidae and, consequently, should be treated as a 32nd recent subfamily within the megadiverse Staphyllinidae sensu latissimo.
On the head morphology of Lepiceridae (Coleoptera: Myxophaga) and the systematic position of the family and suborder
TLDR
Adult head structures of Lepicerus inaequalis were examined in detail and interpreted functionally and phylogenetically, supporting a sistergroup relationship between both sub- orders.
Loberus Impressus (LeConte) (Coleoptera: Erotylidae) Fungal Associations and Presence in the Seed Capsules of Iris Hexagona
TLDR
Adult and larvae of the loberine erotylid beetle Loberus impressus (LeConte) were found associated with fungi growing on corolla and seed capsule tissue of the blue flag iris, Iris hexagona, suggesting a possible role as mycangia in addition to their role as glandular outlets.
Discheramocephalini , a new pantropical tribe of featherwing beetles ( Coleoptera : Ptiliidae ) : description of new taxa and phylogenetic analysis
TLDR
A phylogenetic analysis of 24 taxa and 37 parsimony-informative characters supports the hypothesis of a single origin of the mesoventral perforation, thus uniting Discheramocephalus, Skidmorella, Africoptilium, Fenestellidium, Cissidium and Dacrysoma into a pantropically distributed clade, for which a new tribe Dischersamocephalini is proposed.
Erotylidae (Insecta: Coleoptera: Cucujoidea): phylogeny and review
TLDR
An amended world classification of the Erotylidae is proposed and it is demonstrated that the family Languriidae is paraphyletic with respect to the placement of EroTYlidae, and the monophyly of Loberinae is questionable because of the placed and the uncertain generic status of some of its relatives.
Classification of basal Cucujoidea (Coleoptera : Polyphaga): cladistic analysis, keys and review of new families
Phylogenetic relationships among the basal Cucujoidea were reconstructed by a cladistic analysis of a data matrix consisting of 37 exemplar taxa and 99 adult and larval characters. Eight most
PHYLOGENY AND CLASSIFICATION OF SCAPHISOMATINI STAPHYLINIDAE: SCAPHIDIINAE WITH NOTES ON MYCOPHAGY, TERMITOPHILY, AND FUNCTIONAL MORPHOLOGY
TLDR
It is demonstrated that the scaphisomatine subtribes are paraphyletic, a monophyletic group that is sympatric with macrotermitine termites that cultivate fungi in the Old World.
Morphological and taxonomical novelties in the world’s smallest beetles, and the first Old World record of Nanosellini (Coleoptera: Ptiliidae)
TLDR
The surprising occurrence of mesocoxal mycangia and a venteroelytral‐metepimeral stridulatory mechanism in Nanosellini, unique among Ptiliidae and previously unknown in Staphylinoidea, is possibly correlated with adaptation to life in bracket fungus pores.
Fungi associated with passalid beetles and their mites
TLDR
A new genus and species of branched fungus, Enteroramus dimorphus, lives in the hindgut of the common eastern North American passalid, Odonto- taenius disjunctus, and in axenic culture the fungus con- verts to a yeastlike growth form.
...
...