Orthonevra Nitida
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''Orthonevra nitida '', the wavy mucksucker, is a fairly common species of
syrphid fly Hover flies, also called flower flies or syrphid flies, make up the insect family Syrphidae. As their common name suggests, they are often seen hovering or nectaring at flowers; the adults of many species feed mainly on nectar and pollen, while ...
. It has been observed in Eastern and Central North America. Hoverflies get their names from the ability to remain nearly motionless while in flight. The adults are also known as flower flies for they are commonly found around and on flowers from which they get both energy-giving
nectar Nectar is a sugar-rich liquid produced by plants in glands called nectaries or nectarines, either within the flowers with which it attracts pollinating animals, or by extrafloral nectaries, which provide a nutrient source to animal mutualists ...
and protein rich
pollen Pollen is a powdery substance produced by seed plants. It consists of pollen grains (highly reduced microgametophytes), which produce male gametes (sperm cells). Pollen grains have a hard coat made of sporopollenin that protects the gametophyt ...
. Larvae for this genus are of the rat-tailed type. ''O. nitida'' larvae have not been described.


Description

For terminology se
Speight key to genera and glossary
;Size: ;Head The head is brassy metallic black and covered with scale-like pile. The front in female narrow above, strongly transversely rugose, with a median furrowed longitudinal line. The frontal triangle (male) is rugose. The face is rugose, concave on the lower part. The epistoma is but slightly produced. There is a small silvery spot on each side of the face near the eye above. The antennae are longer than the face with the scape and pedicel are yellowish red or brownish, the flagellum is black and only a little longer than the pedicel. The eyes with a median straight horizontal line and two prominent recurving vertical brown lines. The eyes of the male are
Holoptic Holoptic refers to one of the ways in which the arthropod eye develops, particularly the eyes of various species of insects. Unlike dichoptic and cycloptic eyes, holoptic eyes meet along the median dorsal line of the head, in many species near ...
;Thorax The scutum is metallic green, finely roughened, with four longitudinal stripes of a coppery or metallic purple color, in some reflections brown. The outer stripes are more or less divided into two nearly contiguous ones. The scutellum is more distinctly roughened, or lightly rugose and grooved before the apex. ; Wings The wings are almost transparent, with thin blackish spots on the outer cells. The stigma is a light brown color. There is a narrow brown cloud that starts from the tip of the second vein (R2+3) and extends across the submarginal cell. The cross veins are narrowly clouded with brown. The veins at the outer part of the discal and first posterior cells are rectangular, almost straight, slightly angled in the middle. The fourth vein (M) terminates noticeably beyond the tip of the second vein. The M1 vein is perpendicular to the R4+5 vein. The M2 vein divides the M1 vein into two equal parts. The dm-cu vein is curved inward, and the CuA1 vein extends as a spur on the posterior corner of the discal cell. The crossvein r-m is located at the basal one-third of the discal cell. ;Legs The legs are metallic black with the joints, the base of tibiae and their tip, and the first two joints of tarsi, reddish yellow. ;Abdomen The abdomen has a deep metallic green color. It appears roughened and lacks shine on the central area, but is noticeably shiny on the edges and tip. The second and third segments of the abdomen have somewhat noticeable bands of a less translucent color in front and behind.


Gallery

Orthonevra nitida engravers eye, face, pg county, md 2014-07-16-20.44.03 ZS PMax.jpg, Head Orthonevra nitida pair 2.jpg , male and female Orthonevra nitida (47708062751).jpg, Lateral view Orthonevra wing diagram.png, ''Orthonevra sp.'' wing diagram Orthonevra head diagram.png, ''Orthonevra sp.'' head diagram


References


External links

* Brachyopini Articles created by Qbugbot Insects described in 1830 Taxa named by Christian Rudolph Wilhelm Wiedemann {{Brachyopini-stub