Dopamine (DA) metabolites in microdialysates from the medial preoptic area (MPOA) of male rats increased during copulation. These increases were not observed during eating of a highly palatable food, or if the animal failed to copulate, or if the microdialysis probe was anterior or dorsal to the MPOA. The only two animals with measurable serotonin (5-HT) levels while the female was present were...

The genital pore of the female of Intoshia variabili Aleksandrov et Sljusarev, 1992 is located on a transverse ring of non-ciliated cells. Before copulation it is occupied by 6-7 cells that develop in the epithelium and that for a time are beneath the surface. When fully developed, these cells contain many electron-dense granules and their apical surface is covered with numerous microvilli. Aft...

The genus Otites Latreille was recorded for the first time from Israel during the study of Ulidiidae in the local fauna in 2009-2012, with three species occurring here: O. grata Loew, O. nox n. sp. and O. vitalyi n. sp. The three species are described and illustrated, and a key for their identification is provided. Laboratory behavioral observations on live O. grata individuals revealed a new m...

Mosaic fate mapping is used to locate the foci determining sex-specific steps in the mating behavior of Drosophila. Male performance of following females and displaying wing vibration toward them requires that a focus inside the head be constituted of male tissue, regardless of the sex of the head sense organs, the legs, the wings, or the thoracic ganglion. For attempted copulation to occur, a ...

Adult males of Eidmanacris corumbatai Garcia have reduced tegmina without stridulatory apparatus. For this reason, they developed other means ofintra-specific communication. During courtship, the males use a combination of foreleg drumming and waving of the antennae, in addition to chemical signaling through pheromones. The females become receptive to copulation when the males expose their meta...

Audience effects arise when the signaling behavior of animals is affected by the presence of others. Whilst this phenomenon has been documented in numerous animal species, very little research has addressed what effect the listening audience has in the mating context. In this article we discuss our recent findings that the production of chimpanzee copulation calls is effected by the presence of...

Male courtship during copulation is common in insects and spiders, and presumably serves to induce the female to fertilize her eggs with the male’s sperm. Fragmentary observations indicate that in Ditemnus acantholobus, typical male and female roles are reversed. The female courts vigorously and persistently during copulation while keeping one portion of the male’s highly modified pronotum insi...

Lutzomyia migonei is a vector of leishmaniasis with a wide distribution in South America, which could favour population differentiation and speciation. Cryptic species of the Lutzomyia longipalpis complex, the widely distributed sand fly vector of visceral leishmaniasis in Latin America, have previously been shown to display distinct copulation songs. We found that Lu. migonei males also produc...

Males of the bedbug, Cimex lectularius, traumatically inseminate females by inserting a needle-like intromittent organ (penis) through the female's abdominal wall after she has fed. We demonstrate that: (i) mating duration determines ejaculate size; (ii) a female's first copulation in a bout of copulations always lasts longer than subsequent copulations; (iii) the intromittent organ bears sensi...

Abstract The effects of mating experience on male behavior are mediated by four factors: cost, such as resource depletion, perception opportunities, self-perception attractiveness, and female quality. For example, encountering females might increase expectations prospective while copulation increases attractiveness in males. To determine the relative importance these factors, effect two compone...