Zootaxa,
Год журнала:
2024,
Номер
5562(1), С. 76 - 93
Опубликована: Дек. 30, 2024
Coleoptera
is
a
hyper-diverse
group
of
animals
with
about
400,000
formally
described
species.
Also
the
morphological
diversity
beetles
very
high,
not
only
in
adults,
but
also
larvae.
To
understand
evolutionary
origin
this
enormous
diversity,
investigations
fossils
are
crucial,
especially
for
larvae
such
fossil
still
scarce.
In
study,
we
present
15
new
from
different
deposits
Cretaceous
to
Miocene
age,
which
interpret
as
beetle
ingroup
Adephaga.
Most
these
three-dimensionally
preserved
and
either
embedded
amber
or
silicified.
One
specimen
compression
fossil,
rare
larvae,
represents
first
report
an
adephagan
larva
Early
Jehol
biota
China.
Of
all
previously
known
selected
extant
ones
shapes
head
capsules
mandibles
were
compared
quantitative
morphology
methods
(elliptic
Fourier
analysis
principal
component
analysis).
The
lie
within
morphospace
those
indicates
that
highest
aspect
modern
fauna,
hence
no
loss
occurred.
Other
lineages
Holometabola
show
similar
patterns,
indications
larval
diversifications
already
Cretaceous,
further
specialisation
afterwards,
major
losses.
This
pattern
may
be
reason
species
richness
certain
holometabloan
groups
fauna.
Insect Systematics and Diversity,
Год журнала:
2025,
Номер
9(1)
Опубликована: Янв. 1, 2025
Abstract
Considering
taxonomic
diversity,
extant
xyelid
sawflies
represent
a
very
small
subset
of
the
past
diversity
group.
A
complementary
approach
to
investigate
evolutionary
changes
in
this
family
is
consider
ovipositor
morphology,
an
ecologically
important
organ.
New,
well-preserved
specimens
from
Upper
Triassic
Ominé
locality
(Momonoki
Formation,
Mine
Group;
Carnian;
Japan)
and
belonging
†Madygellinae,
one
earliest
Xyelidae
subfamilies,
are
newly
described
assigned
four
new
species,
three
genera
(one
being
new).
Two
expose
body
parts
wings,
providing
information
regarding
morphology.
To
further
appreciate
evolution
organ,
we
surveyed
both
fossil
Xyelidae.
Extant
forms
display
extremes
range
types,
namely
high
aspect
ratio
“dagger-like”
“needle-like”
types
(in
Xyelinae)
low
“short
wide”
type
Macroxyelinae).
All
known
representatives
types.
In
contrast,
Middle
Jurassic
Lower
Cretaceous
show
highest
for
family.
Afterwards,
observed
declined
concentrated
on
two,
distinct
nowadays.
Decline
disparity
was
not
contemporaneous
Xyelinae
Macroxyelinae:
specialization
occurred
during
Jurassic-Cretaceous
transition
Xyelinae,
while
Macroxyelinae
displayed
their
peak
Cretaceous,
with
postponed
decline.
Ovipositor
shape
probably
accompanied
larval
diet
change
Macroxyelinae.
therefore
contributes
depicting
as
once
more
diverse
Systematic Entomology,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 14, 2025
Abstract
Fungus
weevils
(family
Anthribidae)
are
morphologically
and
ecologically
diverse,
with
highly
varied
feeding
habits,
mainly
mycetophagy
but
also
phytophagy,
palynophagy
entomophagy.
The
phylogeny
of
the
family
is
virtually
unexplored,
its
evolutionary
history
obscure;
thus,
existing
classification
controversial
likely
artificial.
We
generated
first
multi‐gene
higher‐level
estimate
Anthribidae
using
DNA
data
from
400
nuclear
genes
obtained
via
anchored
hybrid
enrichment
40
species
representing
17
tribes
plus
genera
incertae
sedis
.
As
in
previous
studies,
was
consistently
recovered
as
sister
group
Nemonychidae.
two
main
clades
groups
strong
statistical
support,
viz.
a
monophyletic
subfamily
Urodontinae
traditionally
recognized
Anthribinae,
which
rendered
paraphyletic
by
Choraginae.
Paraphyly
polyphyly
among
Anthribinae
indicate
that
current
tribal
concepts—all
based
on
morphology
without
phylogenetic
analysis—are
Based
our
results,
we
subsume
Choraginae
into
place
six
(Apolectini,
Araecerini,
Choragini,
Cisanthribini,
Valenfriesiini
Xenorchestini)
an
expanded
Anthribinae.
transfer
three
currently
treated
to
generally
tribes,
namely
Pleosporius
Holloway
Sintorini,
Xylanthribus
Kuschel
Proscoporhinini
Anthribidus
Fåhraeus
Platystomini.
positions
Trigonorhinini
suggest
phytophagy
ancestral
mode
Anthribidae,
few
taxa
having
secondarily
evolved
plant‐feeding
mycetophagy,
predominant
habit
subfamily.
Overall,
results
provide
molecular
context
for
research
step
towards
reconstructing
natural
Our
study
highlights
need
approach,
sampling
type
deeper
taxon
identify
tribal‐level
groupings.
Zootaxa,
Год журнала:
2025,
Номер
5588(3), С. 401 - 425
Опубликована: Фев. 16, 2025
†Tigrivia
baii,
a
highly
specialized
aquatic
beetle
assigned
to
the
adephagan
†Coptoclavidae,
is
redescribed
and
documented
in
detail.
The
observed
morphological
features
are
discussed
with
respect
function,
phylogenetic
significance,
current
classification
of
Mesozoic
family.
Cladistic
analyses
indicate
that
sister
taxon
†Coptoclava.
Both
may
be
closely
related
†Daohugounectes,
but
this
was
not
confirmed
by
analyses.
genus,
more
advanced
than
†Coptoclava,
showing
range
suggesting
evolutionary
parallels
Gyrinidae,
i.e.
long
raptorial
forelegs,
very
small
prosternal
process,
an
unusually
large
mesoventrite
without
hexagonal
groove,
apically
truncated
elytra,
exposed
appendices
abdominal
segment
VIII.
However,
detailed
assessment
these
analysis
revealed
derived
characteristics
have
evolved
independently
whirligig
beetles.
other
beetles
†Coptoclavidae
were
likely
facultative
surface
hunters,
less
which
can
swim
rapidly
on
film
paddle-like
short
middle
hind
legs.
In
any
case
†Coptoclava
active
predators,
preying
fishes
amphibian
larvae.
monophyletic,
same
probably
true
for
most
subfamilies,
especially
†Necronectinae
(=
†Timarchopsinae).
While
many
coptoclavid
taxa
display
subdivided
compound
eyes
upper
lower
subunit,
feature
synapomorphy
since
it
found
all
genera.
Groups
metacoxae
haliplid
or
trachypachid
type,
mesal
walls
fused
posterior
plates,
apparently
do
belong
Dytiscoidea,
should
removed
from
†Coptoclavidae.
rest
family,
characterized
extensively
metacoxal
largely
reduced
coxal
plates
clade
comprising
dytiscoid
families
except
Noteridae
Meruidae.
Zootaxa,
Год журнала:
2025,
Номер
5604(4), С. 401 - 447
Опубликована: Март 16, 2025
Species
groups
of
Western
Hemispheric
Onthophagus
Latreille
(Coleoptera:
Scarabaeidae:
Scarabaeinae:
Onthophagini)
are
suggested
using
COI
barcoding
and
gene
trees
supported
by
congruence
with
external
morphology,
behavior,
ecology,
biogeographic
evidence.
New
species
groups,
complexes,
taxonomic
statuses
offered,
other
preexisting
proposals
confirmed.
No
gap
w
as
found
between
the
intragroup
intergroup
genetic
distance
blocks,
but
average
(8.38%)
(13.88%)
Kimura-two-parameter
distances
statistically
different.
The
following
seven
were
mtDNA
barcode
analysis
independent
evidence:
O.
chevrolati,
clypeatus,
dicranius,
gazellinus,
hircus,
landolti,
mexicanus.
Eight
new
suggested:
crinitus,
curvicornis,
eulophus,
hecate,
hoepfneri,
marginatus,
nasutus,
velutinus.
Possible
behavioral/ecological
adaptations
morphological
characters
also
discussed.
evolutionary
hypotheses
advanced.
An
identification
key
for
is
presented.
Systematic Entomology,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 23, 2025
Abstract
Beetle
superfamilies
Histeroidea
and
Hydrophiloidea
form
a
well‐supported
monophylum
with
c.
9000
described
species,
but
the
relationships
among
families
remain
unresolved,
hindering
studies
of
early
evolution
group.
This
study
presents
first
genomic
data
for
all
modern
families,
including
genomes
Synteliidae,
Sphaeritidae,
Georissidae
Epimetopidae.
Using
datasets
4215,
1100
709
protein‐coding
genes,
we
reconstructed
reconfirmed
Early
Triassic
split
Histeroidea,
revealed
to
Middle
Jurassic
origin
families.
All
analytical
methods
same
topology
Hydrophiloidea.
The
superfamily
consists
two
main
clades:
helophorid
lineage
(Georissidae
+
Helophoridae
Hydrochidae)
hydrophilid
(Epimetopidae
Spercheidae
Hydrophilidae),
Hydrochidae
Hydrophilidae
as
strongly
supported
clades;
riparian
Epimetopidae
branching
clades
in
each
lineage.
In
detected
significant
conflict
phylogenetic
signal,
indicating
more
complex
dynamic
molecular
than
Hydrophiloidea:
our
analyses
reject
Synteliidae
sister
Histeridae
are
not
decisive
on
whether
Sphaeritidae
or
other
Histeroidea.
reconstruction
habitat
preferences
indicated
that
ancestral
inhabited
moist
substrates
at
sides
lakes
rivers
were
aquatic.
Aquatic
habitats
colonized
twice
independently:
once
by
an
ancestor
Hydrophilidae.
We
discuss
evidence
against
this
novel
Riparian
Ancestor
Hypothesis
detail.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 19, 2025
Abstract
Ecdysteroid
hormones
are
responsible
for
regulating
arthropod
moulting,
but
unlike
other
taxa
which
used
sterol-derived
(e.g.
vertebrate
sex-determining
hormones),
arthropods
cannot
synthesis
sterols
de
novo
.
is
thus
dependent
on
funnelling
diverse
dietary
into
the
conserved
reactions
of
ecdysteroidogenesis.
While
later
steps
ecdysteroid
dominated
by
cytochrome
P450s,
earlier
stages
this
pathway
(i.e.
those
acting
in
or
before
‘Black
Box’
7-dehydrocholesterol
converted
to
5,22,25-trideoxyecdysone)
involve
more
enzymes.
numerous
comparative
analyses
P450s
have
been
conducted,
little
comparable
work
has
done
pre-Black
Box
FAD-dependent
oxidoreductase
DHCR24
and
Rieske
domain
oxygenase
Neverland
Black
short-chain
dehydrogenase/reductase
Shroud.
However,
there
some
evidence
evolutionary
shifts
among
these
enzymes
across
arthropods,
e.g.
absence
from
Drosophila
melanogaster
We
sought
systematically
identify
such
changes
copy
number
DHCR24,
Shroud
as
well
correlations
between
factors
with
reference
literature.
Among
results,
we
find
that
absent
all
beetles
(providing
support
mycophagy
an
important
element
beetle
ancestral
diet)
losses
correlate
production
alkylated
ecdysteroids.
Historia naturalis bulgarica,
Год журнала:
2025,
Номер
47(5), С. 107 - 124
Опубликована: Май 2, 2025
An
updated
catalogue
of
the
world’s
fossil
Cantharidae
is
provided
and
some
taxonomic
acts
are
proposed:
Poinarelektronmiles
Fanti
&
Damgaard,
2020
bonum
genus;
ellenbergeri
comb.
rest.;
cuaroni
Bramanti
Fanti,
2022
Sanaungulus
lethi
dominikiweissbachi
P.
Müller,
kachinensis
Trapezioceps
longelytrus
Kundrata,
Packova,
Li,
Hsiao,
Shaw,
Ferreira,
Bai
Cai,
2023
unjustified
emendation;
angustipennis
(Y.
Yang,
W.
Zhao
H.
Liu,
2024b)
nov.;
Burmomiles
Y.
2024a
unavailable
name;
dentatus
recticollis
ruficollis
Liu
Zhao,
inappropiate
strungei
2019
rest.
returns
to
genus
as
in
original
description;
undecimus
incertae
sedis
because
it
clearly
not
a
Sanaungulus.
Additional
information
also
presented,
two
new
species:
Mimoplatycis
usa
sp.
nov.
from
Eocene
Rovno
amber,
Electronycha
arturmichalskii
Baltic
amber
illustrated
described.