The poison gland and Dufour's gland are the two glands associated with the sting apparatus
in female Apocrita (Hymenoptera). While the poison gland usually functions as an integral …

Social behavior occurs in some of the smallest animals as well as some the largest, and the
transition from solitary life to sociality is an unsolved evolutionary mystery. In The Evolution …

Adhesive devices are used by arthropods not only in terrestrial locomotion but also in prey
capture and predator defence. We argue that the physical mechanisms involved in both …

A literature survey is provided summarizing the available information on exocrine epidermal
glands that produce adhesive secretions in insects. The focus is on both the ultrastructure of …

Highlights•Species in the hymenopteran family Vespidae (paperwasps and relatives) span
much of the known range of animal social complexity.•Vespid phylogeny and basic …

Improvements in the results of athletic competitions are often considered to stem from better
training and equipment, but elements of chance are always present in athletics and these …

Insect social parasites are extreme specialists that typically use mimicry or stealth to enter
ant colonies to exploit the rich, but fiercely protected, resources within their nests,,. Here we …

Wasps encompass solitary, communal, and facultative, obligate, and swarm-founding social
species and are important model organisms for study of the origin and elaboration of insect …

Social parasites are involved in a coevolutionary arms race, which drives increasing
specialization resulting in a very narrow host range. The Formicoxenus ants are a small …

Slave-making ants are social parasites which exploit the workforce of heterospecific slaves
for their own reproduction, and to this end they have developed a variety of morphological …