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| Eristalis transversa | |
|---|---|
_-_MacGregor_Point_Provincial_Park_01.jpg) | |
| Male | |
 | |
| Female | |
Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Diptera |
| Family: | Syrphidae |
| Genus: | Eristalis |
| Species: | E. transversa |
| Binomial name | |
| Eristalis transversa | |
| Synonyms[2] | |
Eristalis transversa, thetransverse banded drone fly, is a common species ofsyrphid fly first officially described byWiedemann in 1830.[1] 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-givingnectar and protein-richpollen. The larvae arerat-tailed type but larvae of this specific species has not been reported.[3][2][4][5]
external mapSpecies reported from North America east of the Mississippi River and into Southeastern Canada.
For terms seeMorphology of Diptera.external images
The notum is opaque black, with three grayish olive transverse bands. The pleurae covered with thick yellow pile. The scutellum is bright yellow, with narrow black along its base.
The first segment black; second segment with large yellow lateral triangles (smaller in the female), and narrow posterior yellow ring, against a black background that extending narrowly to the lateral margins; third segment with large spots on the sides in front connected by a yellow ring against a black background a yellow ring borders the rear of the segment. The female has only a posterior yellow ring on a black background. Fourth segment with a small yellow spot on the front quarters, and a posterior yellow ring, remainder of the segment opaque black with an entire shining cross-band before the middle of the segment. The female has only a posterior yellow ring on a black background. Hypopygium shining black.
The wings are hyaline. The basal portion a little yellowish. Noteworthy veination - Spurious vein (sv), looping of R4+5 into r4+5, closed cell r2+3.anterior cross- vein (r-m) near the middle of discal cell (dm), oblique.
The legs are variably coloured usually black with the tip of femora and base of tibiae yellow. Sometimes the distal half of all the femora and the base of bind tibiae, femora, and the larger portion of the tarsi are yellow or more rarely the front and middle legs may be almost wholly yellow and the black confined to outer part of bind femora. The tip of the hind tibiae, and tip of all the tarsi??[6][7]
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