Ovipositor and mouthparts in a fossil insect support a novel ecological role for early orthopterans in 300 million years old forests

  title={Ovipositor and mouthparts in a fossil insect support a novel ecological role for early orthopterans in 300 million years old forests},
  author={Lu Chen and Jun-Jie Gu and Qiang Yang and Dong Ren and Alexander Blanke and Olivier B{\'e}thoux},
A high portion of the earliest known insect fauna is composed of the so-called ‘lobeattid insects’, whose systematic affinities and role as foliage feeders remain debated. We investigated hundreds of samples of a new lobeattid species from the Xiaheyan locality using a combination of photographic techniques, including reflectance transforming imaging, geometric morphometrics, and biomechanics to document its morphology, and infer its phylogenetic position and ecological role. Ctenoptilus… 
1 Citations

Figures from this paper

A new titanopteran Magnatitan jongheoni n. gen. n. sp. from southwestern Korean Peninsula
Titanopterans are spectacular, giant, predatory insects mainly known from the Triassic, but they are known from a few localities in Central Asia (including European Russia) and Australia. The Nampo


Earliest Evidence of Insect Endophytic Oviposition
The antiquity of the insect endophytic oviposition behavior suggests that it could have been important during the emergence and diversification of the insects group.
Head and Leg Morphology of Elongata Brongniart, 1893: 433 (Late Carboniferous, Archaeorthoptera): Phylogenetic and Palaeoecological Implications
The relative length of leg segments, and the length of antennae, are reminiscent of the condition exhibited by phasmidans, suggesting a similar locomotion behavior, and Morphology of mandibules indicates a carnivorous food-habit.
At last, a Pennsylvanian stem-stonefly (Plecoptera) discovered
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.
Miamia maimai n. sp., a new Pennsylvanian stem-orthopteran insect, and a case study on the application of cladotypic nomenclature
This experiment demonstrates that a combination composed of a "genus level-taxon" name previously associated with a definition and type material provides a suitable reference to the species under all nomenclatural procedures, including the traditional one.
Protomiamia yangi gen. et sp. nov. (Early Pennsylvanian; Xiaheyan, China), a sexually dimorphic Palaeozoic stem-Orthoptera
A new species of stem-Orthoptera recovered from this locality is described, Protomiamia yangi gen. et sp.
The History of Herbivory on Sphenophytes: A New Calamitalean with an Insect Gall from the Upper Pennsylvanian of Portugal and a Review of Arthropod Herbivory on an Ancient Lineage
The 315-million-year-long record of sphenophyte-arthropod herbivory is Documented by focusing on the bookends of that record—namely, the Pennsylvanian and the present day by adding to this milieu a gall association on a newly described spenophyte from the Upper Pennsylvian of Portugal, which suggests that LatePennsylvanian interactions were more diverse than previously suspected.
A New Lobeattid Insect from the Permo-Carboniferous of Niedermoschel, Southwestern Germany (Archaeorthoptera)
The forewing morphology of the species suggests close relationships with lobeattid insects, a group widely represented during the Late Carboniferous, and one for which the monophyly is uncertain.
A new palaeodictyopteroid (Megasecoptera: Brodiopteridae) from the Early Pennsylvanian of northern China reveals unique morphological traits and intra-specific variability
Brodioptera sinensis is defined principally on wing venation characters and darkly pigmented wing apices, but a few have hyaline wing membranes possibly reflecting freshly emerged imagoes or subimagoes without fully developed coloration.
300 million years of diversification: elucidating the patterns of orthopteran evolution based on comprehensive taxon and gene sampling
A robust phylogeny of Orthoptera is established including 36 of 40 families representing all 15 currently recognized superfamilies and based on complete mitochondrial genomes and four nuclear loci, in order to test previous phylogenetic hypotheses and to provide a framework for a natural classification and a reference for studying the pattern of divergence and diversification.