Search results
Results from the WOW.Com Content Network
The blue dasher grows up to 25–43 millimetres (0.98–1.69 in) long. The males are easy to recognize with their vibrant blue color, yellow-striped thorax, and metallic green eyes. Females are somewhat less colorful than the male, an example of sexual dimorphism. While they have a matching yellow-striped thorax, their abdomen has a distinct ...
Brachydiplax chalybea[2] is a species of dragonfly in the family Libellulidae. It is known by the common names yellow-patched lieutenant, [3] rufous-backed marsh hawk, [4][5] and blue dasher. [6] It is native to much of eastern Asia, from India to Japan to Indonesia. [1][7]
Blue dasher, Pachydiplax longipennis, with water mites massed on the underside of its body. Dragonflies are affected by three groups of parasites: water mites, gregarine protozoa, and trematode flatworms (flukes). Water mites, Hydracarina, can kill smaller dragonfly nymphs, and may also be seen on adults. [86]
Sphex cyaneus Fabricius, 1775. Chalybion californicum, the common blue mud dauber of North America, is a metallic blue species of mud dauber wasp first described by Henri Louis Frédéric de Saussure in 1867. It is not normally aggressive towards humans. [2] It is similar in shape and colour to the steel-blue cricket hunter (Chlorion aerarium).
Obelisk posture. The obelisk posture is a handstand -like position that some dragonflies and damselflies assume to prevent overheating on sunny days. The abdomen is raised until its tip points at the sun, minimizing the surface area exposed to solar radiation. When the sun is close to directly overhead, the vertical alignment of the insect 's ...
Brachydiplax is a genus of dragonflies in the family Libellulidae. [ 2] They occur in Asia from India to China and Southeast Asia, and New Guinea to Australia. [ 3] Species of Brachydiplax are often commonly found. Males of most species are usually pale to mid powder blue.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Erythemis simplicicollis, the eastern pondhawk, also known as the common pondhawk, is a dragonfly of the family Libellulidae, native to the eastern two-thirds of the United States and southern Ontario and Quebec, Canada. It is a dragonfly of ponds and still waters. The species is distinguished in that the female is bright green with a banded ...