Reproductive skew - the extent to which reproduction is unevenly shared between individuals in a social group - varies greatly between and within animal species. In this study, we investigated how queens share parentage in polygynous (multiple queen) colonies of the Mediterranean ant Pheidole pallidula. We used highly polymorphic microsatellites markers to determine parentage of gynes (new quee...

rove beetle dermatitis produced by the family staphylinidae genus paederus has world- wide distribution some one hundred species of paederus have been found, but it is believed that only 30 of these produce dermatitis. up to 1976 three species of paederus have been found in iran as: p. fusciped curtis; p. pietschmanni bershaner , and p. spectabilis kraatz . observations on the biology of paeder...

For the first time, the predatory arthropods of aubergine fields in South Sumatra, Indonesia, were studied by pitfall trapping and by square flooding in two four-week periods; first, early after transplanting, and second, during harvest. Plant cover and insecticide use were very low in the first (I) and high in the second period (II). In 20 pitfall traps were caught (I) 3,794, and (II) 2,875 sp...

Hawaii has a single group of native bees belonging to the genus Hylaeus (Hymenoptera: Colletidae) and known collectively as Hawaiian yellow-faced bees. The majority 63 species have experienced significant declines in range population. In 2016, seven received federal protection under Endangered Species Act 1973. Competitors predators, such invasive bees, wasps ants, are thought be important driv...

Three new exotic species of ants are recorded for the Macaronesian island Madeira: Cardiocondyla obscurior Wheeler, 1929, Lepisiota capensis (Mayr, 1862) and Pheidole navigans Forel, 1901. The well-known invasive megacephala is now rare on Madeira, possibly because competition with P. . We did not come across Argentine ant – Linepithema humile , which was once very common in Funchal area. Despi...

Faunistic and statistical analyses of species diversity of the mimercofauna and araneofauna associated with variously managed agricultural fields and adjacent forest fragments and their interactions with Carabidae and Staphylinidae (Coleoptera) are needed to identify the key species affecting the dynamics within the arthropod population affecting the agroecosystem. This knowledge is needed to d...