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Extinct and extant rove beetles meet in the matrix: Early Cretaceous fossils shed light on the evolution of a hyperdiverse insect lineage (Coleoptera: Staphylinidae: Staphylininae)
TLDR
It is demonstrated that by the Early Cretaceous, Paederinae and Staphylininae were already diversified into groups, some of which now represent extant tribes but not the branches dominating in the modern biota.
The distribution of integumentary structures in a feathered dinosaur
TLDR
An enigmatic small theropod dinosaur is reported on that is covered with filamentous feather-like structures over its entire body.
Wing stridulation in a Jurassic katydid (Insecta, Orthoptera) produced low-pitched musical calls to attract females
TLDR
Providing an accurate insight into paleoacoustic ecology, the low-frequency musical song of A. musicus was well-adapted to communication in the lightly cluttered environment of the mid-Jurassic forest produced by coniferous trees and giant ferns, suggesting that reptilian, amphibian, and mammalian insectivores could have also heard A.Musicus' song.
A Probable Pollination Mode Before Angiosperms: Eurasian, Long-Proboscid Scorpionflies
TLDR
The presence of scorpionfly taxa suggests that siphonate proboscides fed on gymnosperm pollination drops and likely engaged in pollination mutualisms with gymnosperms during the mid-Mesozoic, long before the similar and independent coevolution of nectar-feeding flies, moths, and beetles on angiosperms.
At last, a Pennsylvanian stem-stonefly (Plecoptera) discovered
TLDR
Continuing efforts on the systematics of Pennsylvanian winged insects indicate a fauna more diverse than previously appreciated, which suggests that insects already had a long, yet undocumented, history by this time.
Ancient pinnate leaf mimesis among lacewings
TLDR
Evidence of pinnate leaf mimesis is reported in two lacewings (Neuroptera) from the Middle Jurassic, representing a 165-million-year-old specialization between insects and contemporaneous gymnosperms of the Cycadales or Bennettitales.
The presence of the recurrent veinlet in the Middle Jurassic Nymphidae (Neuroptera): a unique character condition in Myrmeleontoidea
TLDR
The recurrent veinlet in these species of Nymphidae is interpreted as a remnant of the condition present more basally in the psychopsoid + ithonoid + chrysopoid + myrmeleontoid clade (i.e., as a plesiomorphy), and the short ScA terminating on ScP is considered to be an autapomorphy of Neuroptera.
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