Hemilucilia segmentaria (Fabricius, 1805) is a Neotropical blowfly species of forensic importance, with necrophagous and asynanthropic habits. In this study, the antennal ultrastructure H. was examined using scanning electron microscopy. The three segments are covered by microtrichia. Sensilla chaetica were detected only on scape pedicel. Setiferous plaques pedicellar button observed Four types...

In the leaf-cutting ant Atta vollenweideri, the worker caste exhibits a pronounced size-polymorphism, and division of labor is dependent on worker size (alloethism). Behavior is largely guided by olfaction, and the olfactory system is highly developed. In a recent study, two different phenotypes of the antennal lobe of Atta vollenweideri workers were found: MG- and RG-phenotype (with/without a ...

Abstract Background The lesser grain borer Rhyzopertha dominica (F.) (Coleoptera: Bostrichidae) is a cosmopolitan insect pest of stored cereal grains. In this study, the fine morphology antennae, maxillary and labial palpi as well typology, distribution associated sensilla were comprehensively examined by scanning electron microscopy. Results On six types identified, s. trichodea, chaetica, two...

Structure and distribution of antennal sensilla were studied in males 19 species the caddisfly family Hydropsychidae by using scanning electron microscopy (SEM). Eleven types found: long trichoid, chaetoid, thick curved coronary, basiconic, styloconic four pseudoplacoid (mushroom-like, auricillic, ribbed, T-shaped). Thick ribbed pseudoplacoid, T-shaped found only Macronematinae. The great diver...

Abstract The ‘Australian firebeetle’ Merimna atrata approaches fires in Eucalyptus forests for reproduction. Beetles stay on a postfire area as long burning wood or hot ashes emit heat and smoke. Abdominal infrared receptors protect the beetles from landing spots; however, until now fire-specific adaptations of antennae have not been investigated more detail. This affects localization olfactory...

The aim of the work was to investigate the pattern of chemoreceptor sensilla in adults and fifth stage nymphs of Rhodnius prolixus, R. neglectus, Triatoma infestans and T. sordida in order to study differences and similarities between genera and species. Three types of sensilla were analyzed by light microscopy: thin-walled trichoidea, thick-walled trichoidea and basiconica. The number of sensi...

Antennal sensilla patterns were used to analyze population variation of domestic Rhodnius prolixus from six departments and states representing three biogeographical regions of Colombia and Venezuela. Discriminant analysis of the patterns of mechanoreceptors and of three types of chemoreceptors on the pedicel and flagellar segments showed clear differentiation between R. prolixus populations ea...

This paper describes the ultrastructural modifications that cockroach campaniform sensilla undergo at three major stages in the molting cycle and finds that the sensilla are physiological functional at all developmental stages leading to ecdysis. Late stage animals on the verge of ecdysis have two completely separate cuticles. The campaniform sensillum sends a 220-mum extension of the sensory p...

The behavioural experiments described here examined, in the praying mantis Tenodera sinensis, the manner in which the proprioceptive cervical hair plate sensilla are involved in the measurement of the distance to a jump target with the aid of motion parallax actively produced by translatory head motion. Various combinations of surgical deafferentation of the cervical hair plate sensilla had no ...

Stomorhina discolor (Fabricius), a species of blow fly that mimics wasps, is distributed worldwide, but detailed information about characteristics of its adult terminalia is incomplete. To help fill this gap in the information, the morphology of adult stages of S. discolor was investigated using light microscopy and scanning electron microscopy. Observations using the light microscope revealed ...