It is generally assumed that Cretaceous stem ants were obligately eusocial, because of the
presence of wingless adult females, yet the available evidence is ambiguous. Here, we …

A new extinct bethylid wasp attributable to the subfamily Scleroderminae is described from
upper Eocene amber found at the Voronki mine in the Vladimirets District of the …

The wasp genus† Holopsenella, described originally from Lebanese amber, is recorded for
the first time from mid-Cretaceous Burmese amber. We describe three new species,† H …

A new fossil praeaulacid wasp, Hadraulacus perrarus Li, Shih and Ren gen. et sp. nov., is
described and figured from mid-Cretaceous Myanmar amber. The new genus is established …

Abstract Examination of Hkamti and Tanai Burmese ambers reveals two new genera and
species of† Lancepyrinae: Protopyris myanmarensis Jouault & Nel gen. et sp. nov. and …

Hymenoptera is the fourth-most diverse insect order today, including wasps, bees,
bumblebees, and ants. They show a wide panoply of modes of life, such as herbivory …

Abstract The Cretaceous family Spathiopterygidae (Hymenoptera: Diaprioidea), containing
five species in four genera, showed a wide distribution from the upper Barremian to the …

The recently discovered amber biota from Zhangpu, China, offers a unique window into the
tropical ecosystem of an Asian rainforest during the Mid-Miocene Climatic Optimum …

Parasitism, a malignant form of symbiosis, wherein one partner, the parasite, derives
benefits to the detriment of another, the host, is a widespread phenomenon. Parasitism …

Simple Summary The Bethylidae, dubbed “flat wasps” because of the general aspect of their
bodies, are important components of past and present entomofauna. Currently comprising …