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Lonchaeoidea
The Lonchaeoidea are a superfamily of generally small or very small black flies with large heads. It contains two families, the Lonchaeidae (lance flies) and the Cryptochetidae. The superfamily was established by G. C. Griffiths in 1972Griffiths, G. C. Phylogenetic Classification of Diptera Cyclorrhapha. Publisher: Springer 1972. and came into general use as such. Characteristics of the Lonchaeoidea include antennae with the second segment cleft, and not more than one proclinate orbital bristle on each side. The frons Insect morphology is the study and description of the physical form of insects. The terminology used to describe insects is similar to that used for other arthropods due to their shared evolutionary history. Three physical features separate insec ... is densely setulose. References Diptera superfamilies {{Acalyptratae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptochetidae
The Cryptochetidae are a small family of tiny flies (generally 2 to 4 mm long). Some twenty to thirty species are known. Generally they are metallic blue black, stoutly built, with the head broad and high and with clear wings.McAlpine, J. F. et al (eds) Manual of Nearctic Diptera. Monographs No. 27 & No. 28 Biosystematics Research Institute, Ottawa. Ontario Research Branch. Pub: Agriculture Canada Vol 1 1981 & Vol 2 1987 Like other species in the superfamily Lonchaeoidea, the Cryptochetidae have antennae with a cleft in the second segment. Unlike practically all Schizophora however, they lack an arista, or if they do have one, it is too small to distinguish with any confidence. The family name refers to this unusual distinction; "Cryptochetidae" literally means "those with hidden bristles". The adult flies also are unusual among insects in that they have only a single pair of abdominal spiracles — this is not a serious physiological challenge in such small insects. Again ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lonchaeidae
The Lonchaeidae are a family of acalyptrate flies commonly known as lance flies. About 500 described species are placed into 9 genera. These are generally small but robustly built flies with blue-black or metallic bodies. They are found, mainly in wooded areas, throughout the world with the exception of polar regions and New Zealand. Description For terms see Morphology of Diptera. The Lonchaeids are small flies with a black or blackish-blue body, which is often metallic, glossy, and with hyaline (lacking dark spots) wings. The head is hemispherical (shorter than high) and the lunule is well defined. The third antennal segment is usually elongated and the antennae are decumbent. Ocelli are present and the postocellar bristles are divergent. The frons is narrow in males; in females it is broad. One pair of orbital bristles is on the head. The postvertical bristles on the head are parallel or weakly divergent. Distinctive vibrissae on the head are lacking, but vibrissa-like brist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glossary Of Entomology Terms
This glossary of entomology describes terms used in the formal study of insect species by entomologists. A–C A synthetic chlorinated hydrocarbon insecticide, toxic to vertebrates. Though its phytotoxicity is low, solvents in some formulations may damage certain crops. cf. the related Dieldrin, Endrin, Isodrin * D–F A synthetic chlorinated hydrocarbon insecticide, toxic to vertebrates. cf. the related Aldrin, Endrin, Isodrin A synthetic chlorinated hydrocarbon insecticide, toxic to vertebrates. Though its phytotoxicity is low, solvents in some formulations may damage certain crops. cf. the related Dieldrin, Aldrin, Isodrin G–L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orbit (anatomy)
In anatomy, the orbit is the cavity or socket of the skull in which the eye and its appendages are situated. "Orbit" can refer to the bony socket, or it can also be used to imply the contents. In the adult human, the volume of the orbit is , of which the eye occupies . The orbital contents comprise the eye, the orbital and retrobulbar fascia, extraocular muscles, cranial nerves II, III, IV, V, and VI, blood vessels, fat, the lacrimal gland with its sac and duct, the eyelids, medial and lateral palpebral ligaments, cheek ligaments, the suspensory ligament, septum, ciliary ganglion and short ciliary nerves. Structure The orbits are conical or four-sided pyramidal cavities, which open into the midline of the face and point back into the head. Each consists of a base, an apex and four walls."eye, human."Encyclopædia Britannica from Encyclopædia Britannica 2006 Ultimate Reference Suite DVD 2009 Openings There are two important foramina, or windows, two important f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frons
Insect morphology is the study and description of the physical form of insects. The terminology used to describe insects is similar to that used for other arthropods due to their shared evolutionary history. Three physical features separate insects from other arthropods: they have a body divided into three regions (called tagmata) (head, thorax, and abdomen), have three pairs of legs, and mouthparts located ''outside'' of the head capsule. It is this position of the mouthparts which divides them from their closest relatives, the non-insect hexapods, which includes Protura, Diplura, and Collembola. There is enormous variation in body structure amongst insect species. Individuals can range from 0.3 mm (fairyflies) to 30 cm across ( great owlet moth); have no eyes or many; well-developed wings or none; and legs modified for running, jumping, swimming, or even digging. These modifications allow insects to occupy almost every ecological niche on the planet, except the deep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
