Evolution of odorant receptor repertoires across Hymenoptera is not linked to the evolution of eusociality.

Communication is essential for social organisms. In eusocial insects, olfaction facilitates communication and recognition between nestmates. The study of certain model organisms has led to the hypothesis that odorant receptors are expanded in eusocial Hymenoptera.

Breakdown in seasonal dynamics of subtropical ant communities with land-cover change.

Concerns about widespread human-induced declines in insect populations are mounting, yet little is known about how land-use change modifies both the trends and variability of insect communities, particularly in understudied regions. Here, we examine how the seasonal activity patterns of ants-key drivers of terrestrial ecosystem functioning-vary with anthropogenic land-cover change on a subtropical island landscape, and whether differences in temperature or species composition can explain observed patterns. Using trap captures sampled biweekly over 2 years from a biodiversity monitoring network covering Okinawa Island, Japan, we processed 1.

Parallel And Divergent Morphological Adaptations Underlying The Evolution of Jumping Ability in Ants.

Jumping is a rapid locomotory mode widespread in terrestrial organisms. However, it is a rare specialization in ants. Forward jumping has been reported within four distantly related ant genera: , and .

 sp. nov.: a new addition from Ivory Coast to the Afrotropical species group (Hymenoptera, Formicidae, Myrmicinae).

In this study the taxonomy of the species group is updated for the Afrotropical region and the new species described. It is integrated into the existing taxonomic system by an updated identification key for the whole group and an update of the known distribution ranges of its members. High quality focus stacking images are provided, with X-ray micro-CT scanned digital 3D representations, of major and minor worker type specimens.

(Hymenoptera: Formicidae) of the Arabian Peninsula with description of two new species, sp. n. and sp. n.

We present a revised and updated synoptic list of 44 Arabian species, including two new species of the species-group: , and We propose the following new synonyms: André (= Collingwood & Agosti ; Santschi (= Collingwood & Agosti , Collingwood & Agosti Collingwood & Agosti ; Emery (= Santschi ; Collingwood & Agosti (= Collingwood & Agosti ; Emery (= Collingwood & Agosti ; and Emery (= Collingwood & Agosti ). An illustrated key and distribution maps are presented for the treated species. Ecological and biological notes are given when available.