They are found throughout the low country in small habitats. Guide to aquatic heteroptera of singapore and peninsular. Revised and annotated checklist of aquatic and semi. Anisops sardeus and sigara selecta were the principal. Family variation of aquatic insects and water properties. Heteroptera are newly recorded for cephalonia island. Among the 70 species reported from this garden, amphiops pedestris. They climb among aquatic vegetation or slowly walk near the surface. They were confined to the littoral zone in the canal brooks 1951. Fabio cianferoni italian national research council.
In the wet year, with a longer pond hydroperiod, five phases could be identified, with the aquatic phase differentiated into winter, early spring and late spring phases. Taxa anisops sardeus belonging to the same family are indicated anisops debilis with a bar with the corresponding family 12 hydrotrephes sp. Piercerpredators using segmented beak to pierce their prey and suck the fluids. Heteroptera are a widely distributed and diverse group that inhabits a variety of ecosystems mcgavin, 1999. Because aquatic heteroptera are of high importance for ecological and. The present study was conducted in different protected areas of the study area of west bengal to explore the. Record of 17 species and 8 families of the order hemiptera showed that it is the largest order in terms of aquatic insect diversity followed by order coleoptera having 7 species and 5 families. Position of sites investigated for aquatic heteroptera in slovakia during the last 12 years 20102012. Apr 01, 2018 the use of family variation of aquatic insects in assessing freshwater quality in ecosystems has only recently been applied in the northern parts of africa. Aquatic and semiaquatic bugs heteroptera represent a remarkable. Buffer zone widths were defined as the distance at which 48 hmortality in the. Anisops sardea, laccotrephes brachialis, mesovelia vittigera and the remainder of the fauna consists of a few endemic.
Control strategies rely primarily on the use of larvicides and environmental modification to reduce recruitment and adulticides during. This is the northernmost record of this smallbodied. Superfamily names shown to the 16 idiotrephes asiaticus right follow s. Aquatic and semi aquatic heteroptera of terai dooars region of west bengal 121 food web composition and functioning of aquatic ecosystems and an efficient bioindicator of freshwater ecohealth. The aquatic and semi aquatic hemiptera, commonly known as water bugs, are one of the major components of freshwater ecosystem and.
Aquatic and semi aquatic bugs heteroptera represent a remarkable. Here, we present the first record of water bug species anisops sardeus sardeus heteroptera. Starmuhlner 1990 on aquatic heteroptera of andaman islands are also not recorded this species. Hydrometra stagnorum linnaeus, 1758, microvelia pygmaea dufour, 1833, velia mariae tamanini, 1971, gerris argentatus schummel, 1832, g. Experiment 1 was set up at 1800 h on 27 march by placing small anisops in the open water of the control container, and small and large anisops in the open water of the experimental container. Presence of anisops sardeus sardeus is denoted by star. Ecology and zoogeography of aquatic hemiptera from. Nov 01, 2017 the objectives of this study were to evaluate the acute toxicity of cadmium in the aquatic insect anisops sardeus hemiptera.
Mahmoudia canal is considered the main water source for. Leong, zoology department, university of singapore the previous work on the ceylonese. Effects on adult and nymphal survival and swimming behavior, ecotoxicology and environmental safety, 10. Two adult specimens of anisops sardeus sardeus herrichschaeffer 1849 were collected in a small pond during an inventory campaign of aquatic and semiaquatic heteroptera in the northeast of romania. Backswimmers heteroptera, notonectidae of the kabardino. Berchi gm 2011 first record of anisops sardeus hemiptera. Further studies on the water bugs of the genus ani. Although insects form a large part of the aquatic fauna worldwide, expansive species of aquatic insects are quite rare. A list of aquatic and semi aquatic hemiptera from pulau tioman is given with notes on their habitats.
A total of 8 families, 25 genera, and 33 species are recorded from the island. Revised and annotated checklist of aquatic and semiaquatic. The present work was carried out to ascertain aquatic hemiptera in different lentic and lotic water bodies of. Miller department of zoology, makerere college, kampala, uganda received december 1965 introduction among insects, haemoglobin is known to occur only in certain chironomid larvae, in gastrophilus larvae, and in the water bugs macrocorixa geoffroyi and those belonging to the subfamily. Summer distribution patterns of the backswimmer, anisops. Water scorpions occur in a variety of wetlands, ponds and by the edges of slow flowing waters. Sazetak an updated checklist of the aquatic and semi aquatic bugs of croatia is provided. Bollettino della societa entomologica italiana 144 1. Review of the aquatic hemiptera from cephalonia, with a checklist. Life cycle and morphology of anisops sardeus herrich. Acute toxicity data for the three groups were obtained from static tests carried out with the indigenous species streptocephalus sudanicus anostraca and anisops sardeus notonectidae and from literature data on the standard test species daphnia magna cladocera.
The assays were used to screen the toxicity of 11 formulated synthetic insecticides used in desert. Further studies on the water bugs of the genus anisops. Apr 01, 2019 eleven species of aquatic true bugs hemiptera. This present communication provides a list of 18 species of aquatic hemiptera from sunderban biosphere reserve including six new records from this area. Assemblages of aquatic hemiptera and their indicator species in the segura river. Guide to aquatic macroinvertebrates of the upper midwest. Ijmrk2 role of the predator anisops sardea hemiptera. Notonectidae on oviposition habitat selection by mosquitoes and other dipterans and on. Jansson 1977 demonstrated that members of the family corixidae are used as indicators of water quality. Nepomorpha in croatia with two new records and four rediscoveries. Thirumalai and ramakrishna zoological survey of india, southern regional station, chennai600 028 introduction aquatic and semi aquatic bugs play a vital role and form an important component in food webs of fresh water ecosystems. Prey preferences of notonectids towards larval mosquitoes.
Pdf the presence of the alien water bug species anisops sardeus sardeus herrichschaeffer, 1849 notonectidae in water basins of the. Freshwater biological association scientific publication, 50. In romania, the first data on water bugs heterop tera were. Heteroptera are newly recorded for cephalonia island greecegerromorpha. Anisops has a hair lined pit in the mid line at the junction of the thorax and abdomen. Altogether, we list 14 families and 59 species nepidae 2, belostomatidae 1, ochteridae 1, micronectidae 2, corixidae 21, naucoridae 1, aphelocheiridae 1, notonectidae 7, pleidae 1, mesoveliidae 2, hebridae 2, hydrometridae 1, veliidae 7, gerridae 10.
This density is well within the range of anisops densities in natural pools. List of aquatic hemiptera collected in the inland waters of the andaman islands. The majority of the aquatic hemiptera from these temporary pools and pans are widespread ethiopian species, e. Jan 01, 2001 the present study describes methods for static acute toxicity tests with two abundant organisms that occur in temporary ponds in the african sahel region.
Aug 01, 2000 deposition profiles for each sprayer were obtained for a single and a fivetrack application. The data corresponded well with the observed acute effects in the field. Notonectidae and estimate its median lethal concentrations at different exposure time in adult male, female, and mature nymph. Pdf new record of water bug anisops sardeus sardeus herrich.
Two species of aquatic heteroptera are recorded for friulivenezia giulia italy for the first time. Thirumalai and ramakrishna zoological survey of india, southern regional station, chennai600 028. May 10, 2017 the hemipteran insect anisops sardeus sardeus herrichschae. Western cape, eastern cape, kwazulunatal, gauteng and northern province, to namibia. Inter and intraannual variations of macroinvertebrate. Remarks on their general distribution are also given. In this study, 22 species in 12 genera belonging 8 families of infraorder nepomorpha were recorded in wetlands of amasya.
Three species of backswimmers heteroptera, notonectidae are recorded from kabardinobalkaria. Acute toxicity of cadmium in anisops sardeus heteroptera. Yes, more in europe agesize at start of testgrowth phase adult females source of organisms nearby ponds have organisms been. Molecular species delimitation and morphology of aquatic and sub. Ultrastructure biomarker reflects the effects of pollutants. Ecological factors determining the distribution and assemblages of. Pdf the entomological expeditions in northern vietnam. Chongtham memtombi chanu, susmita gupta, abhik gupta, acute toxicity of cadmium in anisops sardeus heteroptera. Their immature larval and pupal life stages are a common feature in most tropical and many temperate water bodies and often form a significant proportion of the biomass. Family variation of aquatic insects and water properties to. A preliminary study on the fauna and distribution of aquatic hemiptera in malaya and singapore. The numbers of small and large anisops in the open water of the containers were noted at 28 different times. Anisops sardeus sardeus herrichschaffer, 1849 nepomorpha, notonectidae and gerris gerris argentatus schummel, 1832 gerromorpha, gerridae. Aquatic hemiptera or water bugs play an important role in the fresh water ecosystems and because of their predatory nature, certain families of bugs may be utilised in the.
Pdf nuovi dati su gerromorpha e nepomorpha in italia. Hemiptera, one of the few exclusively aquatic insects that can be considered as an alien species, and for. Further studies on the water bugs of the genus anisops hemiptera. The organisms were captured in the 5eld and 48h static toxicity tests were conducted in the laboratory. Mosquitoes are serious biting pests and obligate vectors of many vertebrate pathogens. Nepomorpha heteroptera fauna of southwestern anatolia. Anisops sardeus sardeus herrichshaffer family iv belostomatidae genus 6. The present study amid to evaluate the reproductive changes of the aquatic hemipteran insect anisops sardeus as a bioindicator organism, inhabiting three sites in almahmoudia canal abouhommous, zarcon town, manshia which varied in physical and chemical properties. Jul 16, 2019 in this study, we quantify the prey preferences of two predaceous notonectids, anisops breddini and anisops sardeus, towards four different aquatic larval instar stages of the medically important mosquito culex quinquefasciatus across variations in surface area and water depth. Aquatic hemiptera or water bugs play an important role in the fresh water ecosystems and because of their predatory nature, certain families of bugs may be utilised in the biological control of mosquitoes.
During the study period aquatic insect community was represented by 31 species belonging to 18 families of 5 orders. Nepomorpha heteroptera fauna of southwestern anatolia turkey. Pdf although insects form a large part of the aquatic fauna worldwide, expansive species of aquatic insects are quite rare. Review of the aquatic hemiptera from cephalonia, with a. Mar 29, 2014 although insects form a large part of the aquatic fauna worldwide, expansive species of aquatic insects are quite rare. Among aquatic hemipteran predators, many species of notonectidae are important predators of mosquito larvae with potential role in the biological control of mosquitoes 5. Heteroptera, nepomorpha, aphelocheiridae, corixidae, notonectidae, gerro.
Anisops sardeus herrichschaeffer, 1849 heteroptera. Methodology the aquatic bugs were collected from the freshwater bodies of the sagar island, bali island and gosaba island of sunderban biosphere reserve during the period of 20142015 and. Notonectidae has a wide distribution in asia, africa and europe fent et al. Ultrastructure biomarker in anisops sardeus heteroptera. Acute toxicity of locust insecticides to two indigenous. Water from glass containers exposed to the multipletrack treatments was used for laboratory bioassays with the backswimmer anisops sardeus hemiptera, notonectidae.
Influence of the predatory backswimmer, notonecta maculata. Adults of the british aquatic hemiptera heteroptera. Find, read and cite all the research you need on researchgate. Of those the species, lethocerus patruelis stal, 1854, ochterus marginatus marginatus latreille, 1804, micronecta griseola horvath, 1899 and anisops sardeus herrichschaeffer, 1849 are new records for the aquatic heteroptera fauna both of amasya and black sea region. Dispersers such as anisops sardeus, berosus guttalis or anacaena lutescens were typical during the filling phase and corixa affinis or enochrus fuscipennis during the drying. Further, the behavioral responses of these life stages to acute toxic concentrations of. Ecology and zoogeography of aquatic hemiptera from temporary.
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