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...

Two Neotropical subgenera of Coelioxys Latreille are revised. The monotypic C. (Platycoelioxys) Mitchell and C. (Rhinocoelioxys) Mitchell has seven valid species; six of them (C. agilis Smith, C. barbata Schwarz & Michener, C. clypearis Friese, C. nasidens Friese, C. paraguayensis Schrottky and C. zapoteca Cresson) previously described, and one, C. platygnatha Rocha-Filho & Packer n. sp. is new...

a survey on the megachilid bees (hymenoptera: megachilidae) fauna of northern iran, between 2010 and 2011, led to the identification of eleven species of the genus coelioxys latreille belonging to subgenera allocoelioxys (6 species), boreocoelioxys (2 species), coelioxys (2 species) and liothyrapis (1 species). of these, six species and one subgenus (liothyrapis) are new to the fauna of iran. d...

We report the results of an 8-yr trap nesting study on the reproductive behavior of twocleptoparasitebees,Coelioxys funerariaSmith andCoelioxysmoestaCresson.This studyprovided a unique opportunity to examine parasite-host adaptation within a species, in which two different size classes ofC. funerariaconsistently laid eggs in thenests of the twodifferent sizedMegachilehosts, M. relativa Cresson ...

Little work has been done with the African species of Cremnops since their original descriptions. Herein we propose new combinations for five species that are currently placed in Cremnops, i.e., C. atripennis Szépligeti 1914 and C. elegantissima Szépligeti 1908 are moved to Disophrys; C. borealis (Szépligeti 1914) and C. rubrigaster Masi 1944 are moved to Biroia; and C. pulchripennis Szépligeti...

The Deseda lake is situated in the southwestern part of Hungary, Somogy county. author collected a lot Aculeata species around (Table 1). highest number per family: Halictidae, Colletidae, Andrenidae, Crabronidae and Vespidae. lowest were found from the Pompilidae Melittidae families. Genuses with most significant species: Chrysis (Chrysididae), Priocnemis (Pompilidae), Crossocerus, Diodont...