(E)-11- and (Z)-11-tetradecenyl acetate are the most common female sex pheromone components in Ostrinia moths. The Δ11-desaturase expressed in the pheromone gland (PG) of female moths is a key enzyme that introduces a double bond into pheromone molecules. A single Δ11-desaturase of Ostrinia nubilalis, OnubZ/E11, has been shown to produce an ∼7:3 mixture of (E)-11- and (Z)-11-tetradecenoate from...

In many moths, mate-finding communication is mediated by the female sex pheromones. Since differentiation of sex pheromones is often associated with speciation, it is intriguing to know how the changes in female sex pheromone have been tracked by the pheromone recognition system of the males. A male-specific odorant receptor was found to have been conserved through the evolution of sex pheromon...

Oviposition of Graphocephala atropunctata (Signoret) (Hemiptera: Cicadellidae), the blue-green sharpshooter, was assessed on wild grape, Vitis girdianaMunson, in southern California. Female blue-green sharpshooter preferred to oviposit into new growth, primarily succulent young grape tendrils and canes. Themidrib and petioles of small grape leaves also were used for oviposition, but to a lesser...

Dolichopus humilis Van Duzee, 1921 was described from the Alaska-Yukon Territory boundary (Van Duzee et al. 1921), and later recorded from Alaska, Northwest Territories and Greenland (J.R. Vockeroth in Pollet et al. 2004). This species was redescribed and illustrated by Pollet and Böcher (2005). It was never associated with the Dolichopus latipennis species group (= Hygroceleuthus Loew, 1857). ...

The genus Armacia Stål (Hemiptera: Fulgoromorpha: Ricaniidae) is reviewed taxonomically. Four new species of the genus are described and illustrated from West-Pacific region: A. madangensis sp. nov. (Papua New Guinea), A. rubilimba sp. nov. (Indonesia), A. spinae sp. nov. (Indonesia) and A. vigorata sp. nov. (Indonesia), A. albipes (Walker 1868), A. clara (Stål 1859), A. divisura (Walker 1868),...

On the basis of a newly performed cladistic analysis a new classification of the representatives of two Afrotropical tenebrionid genera, Ectateus Koch, 1956 and Selinus Mulsant & Rey, 1853 sensu Iwan 2002a, is provided. Eleoselinus is described as a new genus. The genus Monodius, previously synonymized with Selinus by Iwan (2002), is redescribed and considered as a separate genus. Following new...

All Australian species previously placed in Horaeomorphus Schaufuss are revised. None of them was found to belong to this predominantly Oriental genus. Four new genera are established to accommodate these species: Leascydmus gen. n. for Scydmaenus simplicicornis Lea; Scydmaenozila gen. n. for Phagonophana macrosticta Lea (type species) and Phagonophana latipennis Lea; Spinosciacharis gen. n. fo...