Morphological characteristics of antennal sensilla in the European cornborer Ostrinia nubilalis (Lepidoptera: Pyralidae)

Antennal Sensilla of the New World Screwworm Fly, <I>Cochliomyia hominivorax</I> (Diptera: Calliphoridae)

“…This suggests that sensilla trichodea play an olfactory role in host or mate location in T. castaneum, whereas their longer-than-average length indicates that they also assist in sensing mechanical or chemical stimuli. Sensilla trichodea were the most abundant sensilla on the antennae of T. castaneum, and studies on many other insect species have shown that these sensilla could be divided into subtypes according to the number of sensory cells (Hallberg et al 1994), the presence (or absence) of pores on the sensillum wall (Onagbola & Fadamiro 2008), or the distribution and length of the sensilla (Ren et al 2014).…”

Reversed functional topology in the antennal lobe of the male European corn borer

“…Other possibilities include, for instance, that, instead of a single gene, a group of tightly-linked genes underlies the reversed antennal lobe physiology in O. nubilalis, which would allow for mechanisms such as rewiring of both ORNs to opposite MGC glomeruli. The matter is further complicated by the fact that Z11-and E11-14:OAcsensitive ORNs are also found in other, much less frequent physiological subtypes of trichoid sensilla (Hallberg et al, 1994). O. nubilalis apparently expresses the same putative Z11-and E11-14:OAc-sensitive ORs in ORNs derived from different progenitor cells, while axons converge into the same glomerulus.…”

“…Sensillum type B houses two ORNs, one large spiking ORN responding to the major component, and a small-spiking ORN responding to the minor pheromone component. Sensillum type C contains one ORN responding either to the major pheromone component or to the behavioral antagonist Hallberg et al, 1994;Cossé et al, 1995). Genetic studies of the O. nubilalis pheromone communication system have indicated that female sex pheromone production and the male sensory setup are primarily controlled by a single autosomal factor Roelofs et al, 1987;Löfstedt et al, 1989;Roelofs and Glover, 1991).…”

Unusual response characteristics of pheromone-specific olfactory receptor neurons in the Asian corn borer moth,Ostrinia furnacalis

“…The external and internal morphology of sensilla on the antenna of O. nubilalis has been described, whereas only the external morphology has been described in O. furnacalis (Ren et al, 1987;Hallberg et al, 1994).…”