Water scorpion nepa cinerea linnaeus, 1758 occurs in different aquatic. The samples were taken in small aquatic habitats e. Distribution and associations of the aquatic heteroptera of the balearic islands spain j. Description of reproductive system of indian water scorpion. Aquatic and semiaquatic heteroptera rarely find suitable habitats in high altitude regions of romania. A chromosomal analysis of nepa cinerea linnaeus, 1758 and. Nepa cinerea linne ilyocoris cimicoides linne plea leachi macgreg. The aquatic heteroptera, hydrocorisae, in particular nepa cinerea l. Apr 08, 2016 aquatic heteroptera themselves are often subjected to strong predation pressure e.
The water scorpion, nepa cinerea, got its name because of its long tail, but the tail is a breathing tube actually two tubes stuck together, rather like a snorkel, not a sting. Heteroptera, or true bugs, is the most diverse group of paurometabolous insects with incomplete metamorphosis. Altogether 22 sampling sites were examined for n cinerea of which at. Heteroptera, distribution, associations, balearic islands abstract twentyfive species of aquatic heteroptera were collected from the balearic islands. A contribution to the faunistics of aquatic and semiaquatic. They bel ong to 14 species and 4 subspecies, from 11 genera and 6 families. Water scorpion nepa cinerea linnaeus, 1758 occurs in different aquatic habitats from lentic to lotic conditions. They belong to the typical bugs of the suborder heteroptera. The morpholog any d physiolog oy f the salivary glands of. A contribution to the faunistics of aquatic and semiaquatic bugs heteroptera. The nepoidea superfamily belongs to the water bugs infraorder nepomorpha and consists of two familiesbelostomatidae and nepidae.
Pdf some morphological characteristics of the water. A chromosomal analysis of nepa cinerea linnaeus, 1758 and ranatra linearis linnaeus, 1758 heteroptera, nepidae robert b. Species from those families are the largest of all nepomorphans and are considered to be top predators in aquatic ecosystems. Heteroptera of michigan species list aquatic insects of. However, this last work lacks a critical overview, listing also synonyms, doubtful records, and previous misidentifications without any comments. The male reproductive organs include a pair of testis, a pair of vasa deferentia, a pair of vesicula seminalis, two pairs of accessory glands and unpaired median ductus ejaculatorious. Antennae shorter than the head, usually concealed in depressions on. It lives in ponds, small rivers, and stagnant water, and feeds upon aquatic animals, especially insects. The aquatic bugs include the familiar water botamen and the larger species of water bugs such as the saucer bug ilyocoris cimicoides and the water scorpion nepa cinerea.
Nepa cinerea chulupaca is a species of water scorpion, found in most of europe, including the british isles, as well as north africa and southern and northern asia. They occur all over the world outside the polar regions, with about 2,000 species altogether. The distribution of the aquatic and semiaquatic heteroptera nepomorpha, gerromorpha in the middle basin of the river olt. Aquatic heteroptera nepomorpha, gerromorpha in small intermittent rivers. It this study morphometric characteristics and the growth of univoltine predatory water scorpion nepa cinerea were studied on the basis of data measured on freshly killed individuals, the same ethanol fixed individuals and dried individuals. Brooklin entomological society, brooklin, new york. A chromosomal analysis of nepidae 641 a chromosomal analysis of nepa cinerea linnaeus, 1758 and ranatra linearis linnaeus, 1758 heteroptera, nepidae robert b.
Kuznetsova4 1 department of life sciences insects, the natural history museum, cromwell road, london sw7 5bd, uk. In the case of balea lake we think that, indeed the altitude is the restrictive factor of the spreading of the researched species, being collected only an aquatic heteroptera and a semi aquatic one. The habitat conditions do influence the structure and composition of heteroptera communities. Due to their aquatic habits, these animals are known as true water bugs. A characteristic feature of the group is the existence of short antennae concealed in grooves behind the eyes, which is an adaptation. On the relationships of the eight aradid subfamilies heteroptera. Synopsis the rate of osmotic water uptake through the hydrophilic cuticle of nepa cinerea has been measured and compared with that found in other water bugs possessing a hydrophobic cuticle. Distribution and associations of the aquatic heteroptera of. Pdf water bugs heteroptera in the catchment area of. The corixidae lesser water boatmen is the largest family of water bugs and, unlike other families in the group, are predominantly plant feeders. Linnaeus, 1758 nepa cinerea chulupaca is a species of water scorpion, found in most of europe, including the british isles, as well as north. The first annotated checklist of aquatic and semiaquatic heteroptera of turkey was compiled by k. Global trends in the description of aquatic and semiaquatic heteroptera species, 17582004. Four african species of true water bugs nepomorpha.
Antennae shorter than the head, usually concealed in depressions on under side of head beneath the eyes. It covers all species of aquatic and semiaquatic bugs heteroptera in great britain, identifying those that are rare andor under threat as well as nonthreatened and nonnative species. They are commonly called water scorpions for their superficial resemblance to scorpions, due to their raptorial forelegs and the presence of a long slender proboscis at the posterior end of the abdomen, resembling a tail. Most collected adult specimens were killed in ethyl acetate and stored on cotton backing in insectproof containers. Wildscreens arkive project was launched in 2003 and grew to become the worlds biggest encyclopaedia of life on earth. As of 2008, there are about 67 genera and 424 species of aquatic and semiaquatic heteroptera in north america polhemus and polhemus 2008, of which of which 39 genera and 126 species documented in michigan, and another 12 species that may be encountered based on their known regional distribution. Antennal sensory structures in water bugs of nepoidea. The nymphs of this bug are also miniatures of the adult but the breathing tube is very short in small nymphs. Abstract four african species of true water bugs nepomorpha.
Bug families of great britain and ireland kev rowley photographs by a. Notes on the hemiptera, coleoptera, diptera and other. At lake balaton only specimens from the order heteroptera were collected. Nepomorpha is an infraorder of insects in the true bug order. Pdf some morphological characteristics of the water scorpion. This document provides information on species known to occur in scotland at the time of publication. Nepomorpha heteroptera fauna of southwestern anatolia. Water bugs act both as consumers of algae and leaf litter at lower trophic levels and as prey for fish and other organisms at higher trophic levels mccafferty 1981, hutchinson 1993. Water bugs can be found on the macrophyte stands, of. Nepomorpha are associated with habitat type article pdf available january 2016 with 228 reads how we. This new species is the first aquatic, stygobiotic heteropteran discovered. Nonetheless, aquatic heteroptera are considered less suitable indicator species than aquatic beetles because of their lower species diversity, and the broad ecological amplitude of some species. With more than 4,400 described species worldwide henry, 2017, aquatic heteroptera are wellknown for utilizing an exceptionally broad range of habitats, ranging from. Hemiptera linnaeus 1758 50,000 species small to large sized up to 90mm.
The common form of nepa cinerea has re duced flight organs. With more than 4,400 described species worldwide henry, 2017, aquatic heteroptera are wellknown for utilizing an exceptionally broad range of habitats, ranging from the marine and intertidal to. Maps showing the distribution of all 48 aquatic heteroptera species recorded from cheshire are presented together with individual species accounts. Draft keys to the water bug families of great britain and. Draft keys to the water bug families of great britain and ireland. Nepomorpha heteroptera fauna of southwestern anatolia turkey. That is to say the heteroptera is a group of about 40,000 species of insects worldwide within the group. Five are first records sigara nigrolineata, micronecta scholtzi, ranatra linearis, notonecta meridionalis andhebrus pusillus. Eggs are laid in vegetation just beneath the surface of the water and take 3 to 4. Heteroptera of michigan species list aquatic insects. Water bug family key 26102018pdf wildlife trust bcn. A number of aquatic heteroptera have been collected in the provinces of antalya, ayd. The effect of dredging of a small lowland river on aquatic. A preliminary report horea olosutean, daniela minodora ilie aquatic and semiaquatic heteroptera rarely find suitable habitats in high altitude.
Revised and annotated checklist of aquatic and semi. Water uptake through the cuticle of the water scorpion, nepa cinerea l. Heteroptera are studied by mass spectrometry and biological assays to gain information on the presence, structure and funct. Water bugs in northants have been under recorded and it is expected that by analysing this information it will give us momentum to collate more records and improve the recording across more 2km, 5km and 10km squares in vice county 32. Nepa cinerea linnaeus, 1758, corixa affinis leach, 1817, corixa. Sampling of insects was carried out at 44 localities in the course of two years. Eggs are laid in vegetation just beneath the surface of the water and take 3 to 4 weeks to mature. Growth and individual variability of the water scorpion nepa.
There are 14 genera in the family, in two subfamilies, nepinae and. Pre1950 records are not included in these maps but will be. Eyarin jehamalar and kailash chandra zoological survey of india, mblock, new alipore, kolkata 700 053 introduction aquatic heteroptera occupy a broad spectrum of aquatic habitats, have a multitude of shapes, and are adapted to a broad variety of niches spencer and. Identification key to the principal families of florida. Standard dshape aquatic nets were used to collect aquatic hemiptera in the ugam river, streams and standing water in all areas of the park. Nepa cinerea, the water scorpion, is often found buried in silt, and so some effort may be needed to. The recent catalogue of the heteroptera of the palaearctic region lists approximately 3000 species for. Spiracles in certain terrestrial heteroptera hemiptera. With the help of over 7,000 of the worlds best wildlife filmmakers and photographers, conservationists and scientists, featured multimedia factfiles for more than 16,000 endangered species. Pdf morphological variation can enable species to successfully survive and. Heteroptera are studied by mass spectrometry and biological assays to gain information on the presence, structure and function of pept. Nepidae staddon 1973 journal of entomology series a, general. Aquatic heteroptera themselves are often subjected to strong predation pressure e.
Denton, jonty, 2007, water bugs and beetles of surrey. Aquatic and semiaquatic heteroptera nepomorpha and gerromorpha fauna of greek holiday islands rhodes, crete and corfu with first records of three species from europe and greece. A synopsis of the hemipteraheteroptera of america north of mexico. Water uptake through the cuticle of the water scorpion. Nepa cinerea, the water scorpion, is a widespread species occurring throughout the uk in a variety of aquatic habitats, but usually in shallow water among vegetation. Nepa cinerea fig 2 ranatra linearis 5 3b hemelytra. Horizontal zonation of macrovegetation, water properties. The males are relatively smaller with conspicuous connexival spines and possess distinct external genitalia. The body length is 20 23 mm, and the tail is usually around 10 mm long. Moreover, the identification of females of some corixid species is relatively difficult, which may hamper ecological field assessments. Water bugs heteroptera in the catchment area of river sitnica serbia. Amino acid classification accords to the iupaciub singleletter amino acid codes.
Abundance, diversity and succession of aquatic coleoptera and. It overwinters as an adult and mating occurs during april and may. Water uptake through the cuticle of the water scorpion, nepa. Angus1, constance jeangirard2, desislava stoianova3, snejana grozeva3, valentina g. Screenshot of the complete alignment of all studied aquatic heteroptera gerromorpha, nepomorpha showing a gap of 39 nucleotides amino acids within the analyzed specimens of cymatia coleoptrata fabricius, 1777 from position 110 to 148. Structure of the genitalia places this new taxon in the cinerea species group. Description of reproductive system of indian water. Nepa cinerea chulupaca is a species of water scorpion nepidae, found in most of europe. Large circles represent post1990 records and small circles represent records between 1950 and 1990. Pdf water bugs heteroptera in the catchment area of river. In the present paper, aquatic bugs attracted to uv light near the srebarna nature reserve were quantified. Abundance, diversity and succession of aquatic coleoptera. Mar 05, 2020 the purpose of this site is to share the water bug information that has been collated across northamptonshire. Group i lake shandangan was the poorest lake, both numerically and faunistically, as regards the potential breeding species of corixidae.
Distribution and associations of the aquatic heteroptera. Some morphological characteristics of the water scorpion nepa cinerea heteroptera. Ranatra linearis the water stick insect nepa cinerea the water. Description of reproductive system of indian water scorpion, laccotrephes maculatus fabr. May 11, 2019 the nepoidea superfamily belongs to the water bugs infraorder nepomorpha and consists of two familiesbelostomatidae and nepidae.
The distribution of the aquatic and semiaquatic heteroptera. A characteristic feature of the group is the existence of short antennae concealed in grooves. Nepa cinerea linnaeus, 1758 individuals were collected with long handled oframe water net in a diameter of 25 cm and mesh size 0. Spiracles in certain terrestrial heteroptera hemiptera 215 the presence of the external type of regulatory apparatus in the thoracic and the internal type in the abdominal spiracles has also been shown by vinal 1919 in orthoptera, alt 1909 in dytiscus, snodgrass 1925 in apis and tonapi 1958 in hymenoptera. Growth and individual variability of the water scorpion.
Nepa cinerea linnaeus, 1758, notonecta viridis delcourt, 1909, plea minutissima minutis. The purpose of this site is to share the water bug information that has been collated across northamptonshire. It lives in ponds, small rivers, and stagnant water, and feeds upon aquatic. Nepidae is a family of exclusively aquatic heteropteran insects in the order hemiptera.
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