Berichtigung. (Hym.)

Volatile Compounds from Cephalic Secretions of Females in two Cleptoparasite Bee Genera, Epeolus (Hym., Anthophoridae) and Coelioxys (Hym., Megachilidae)

Epeolus, Coelioxys, Cephalic Secretions, Pyrazines, Spiroacetals Volatile cephalic secretions from females of four cleptoparasitic bee species, Epeolus cruciger (Pz.), E. variegatus, (L.) (Anthophoridae) and Coelioxys (Coelioxys) quadridentata (L.), C. (Schizocoelioxys) mandibularis Nyl. (Megachilidae) were analysed by combined gas chromatog­ raphy/mass spectroscopy. There are considerable simi...

Adding recursion to Dpi ( Extended abstract ) Samuel Hym

Dpi is a distributed version of the pi-calculus, in which processes are explicitly located, and a migration construct may be used for moving between locations. We argue that adding a recursion operator to the language increases significantly its descriptive power. But typing recursive processes requires the use of potentially infinite types. We show that the capability-based typing system of Dp...

Revision of the genus Aspicera Dahlbom, 1842 (Hym.: Figitidae: Aspicerinae).

The genus Aspicera Dahlbom (Hymenoptera: Cynipoidea: Figitidae: Aspicerinae) is revised herein. Aspicera has a Holarctic distribution, being here cited for the first time from the following countries: Canada, Cyprus, Greece, India (northeastern corner, which is part of the Himalayan southeastern range and is considered as belonging to the Palaearctic), Japan, Jordan, Mexico, Montenegro, and Tur...

Hymenopterous parasitoids (Hym.: Chalcidoidea) of xylophagous beetles in Iran

A survey was conducted in Iran, on xylophagous beetles, to collect and determine their associated chalcidoid parasitoids (Hym.: Chalcidoidea). Nineteen species of parasitoids are recorded. These species are from 6 families: Chalcididae, Encyrtidae, Eulophidae, Eupelmidae, Eurytomidae and Pteromalidae belong 4, 1, 1, 2, 4 and 7 species, respectively. Five species were discovered as new record fo...

Taxonomic notes on Indian Encyrtidae (Hym.: Chalcidoidea). II