Protect yourself and your family from mosquito bites Use Insect Repellent Use Environmental Protection Agency EPA -registered insect repellents with one of the active ingredients below. When used as directed, EPA-registered insect repellents are proven safe and effective, even for pregnant and breastfeeding women. Tips for babies and children Always follow instructions when applying insect repellent to children. Do not use insect repellent on babies younger than 2 months old.
The segments of the body are organized into three distinctive but interconnected units, or tagmata: The thorax is made up of three segments: Each thoracic segment supports one pair of legs. The meso- and metathoracic segments may each have a pair of wingsdepending on the insect. The abdomen consists of eleven segments, though in a few species of insects, these segments may be fused together or reduced in size.
The abdomen also contains most of the digestiverespiratoryexcretory and reproductive internal structures. Segmentation[ edit ] The head is enclosed in a hard, heavily sclerotized, unsegmented, exoskeletal head capsule, or epicraniumwhich contains most of the sensing organs, including the antennae, ocellus or eyes, and the mouthparts.
Of all the insect orders, Orthoptera displays the most features found in other insects, including the sutures and sclerites. In prognathous insects, the vertex is not found between the compound eyes, but rather, where the ocelli are normally.
In some species, this region is modified and assumes a different name. The anterior segment, closest to the head, is the prothorax, with the major features being the first pair of legs and the pronotum. The middle segment is the mesothorax, with the major features being the second pair of legs and the anterior wings.
The third and most posterior segment, abutting the abdomen, is the metathorax, which features the third pair of legs and the posterior wings. Each segment is dilineated by an intersegmental suture. Each segment has four basic regions. The dorsal surface is called the tergum or notum to distinguish it from the abdominal terga.
In turn, the notum of the prothorax is called the pronotum, the notum for the mesothorax is called the mesonotum and the notum for the metathorax is called the metanotum.
Continuing with this logic, the mesopleura and metapleura, as well as the mesosternum and metasternum, are used.
Each segment of the abdomen is represented by a sclerotized tergum and sternum. Terga are separated from each other and from the adjacent sterna or pleura by membranes. Spiracles are located in the pleural area.
Variation of this ground plan includes the fusion of terga or terga and sterna to form continuous dorsal or ventral shields or a conical tube.
Some insects bear a sclerite in the pleural area called a laterotergite. Ventral sclerites are sometimes called laterosternites. During the embryonic stage of many insects and the postembryonic stage of primitive insects, 11 abdominal segments are present.
In modern insects there is a tendency toward reduction in the number of the abdominal segments, but the primitive number of 11 is maintained during embryogenesis.
Variation in abdominal segment number is considerable. If the Apterygota are considered to be indicative of the ground plan for pterygotes, confusion reigns: The orthopteran family Acrididae has 11 segments, and a fossil specimen of Zoraptera has a segmented abdomen. The procuticle is chitinous and much thicker than the epicuticle and has two layers: The tough and flexible endocuticle is built from numerous layers of fibrous chitin and proteins, criss-crossing each other in a sandwich pattern, while the exocuticle is rigid and hardened.DEET (chemical name, N,N-diethyl-meta-toluamide) is the active ingredient in many insect repellent products.
It is widely used to repel biting pests such as mosquitoes and ticks. Formulations registered for direct skin application contain 4% to % DEET.
Use these natural mosquito repellents and mosquito bite remedies to keep the mosquitoes away and get relief from itchy bug bites! "Wearable" Insect Repellents (mosquitoes): Some natural products are integrated into wristbands or clips you can hang on clothes or gear.
They rely on nonsynthesized plant oils to repel mosquitoes. They rely on nonsynthesized plant oils to repel mosquitoes. The sterile insect technique (SIT) is a method of biological insect control, whereby overwhelming numbers of sterile insects are released into the wild.
The released insects are preferably male, as this is more cost-effective and the females may in some situations cause damage by laying eggs in the crop, or, in the case of mosquitoes, taking blood . Model Name Type Active ingredients Cost per oz.
($) Protection against mosquitoes and ticks Resists damage to materials Cost per wipe ($). BugBand DEET-Free Mosquito Repellent is popular worldwide!. According to laboratory and field studies by the University of Florida in Gainesville, Geraniol, the active ingredient in BugBand Mosquito Repellent, has been proven effective in repelling mosquitoes.