| Chrysotoxum perplexum | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Diptera |
| Family: | Syrphidae |
| Subfamily: | Syrphinae |
| Tribe: | Syrphini |
| Genus: | Chrysotoxum |
| Species: | C. perplexum |
| Binomial name | |
| Chrysotoxum perplexum Johnson, 1924 | |
Chrysotoxum perplexum is a North American species of syrphid fly in the family Syrphidae.The adults are strong mimics of wasps. [1] Larvae of this genera, when known, are aphid predators. [2]
For terminology see Speight key to genera and glossary
The face is convex with a prominent tubercule at the lower end of the facial stripe. The vertex and front are black, with the upper part of the front being whitish pollinose. The first joint of the antennae is longer than the second, and the third is slightly longer than the first and second combined. Lastly, the arista is reddish.
The scutellum has a broad transverse black band, leaving a narrow yellow margin at the base and apex.
The sides of the first abdominal segment are yellow, and the arcuate bands on the other segments are narrowly interrupted. The arcuate bands on the second and third segments extend to the lateral margin, while the one on the fourth segment is narrowly separated. The posterior margin of the second segment is entirely black, while the yellow posterior marginal band on the third and fourth segments is narrow on the sides and expands in the middle, being widest on the fourth segment. The two elongated spots on the fifth segment are curved, and the central triangle is small, leaving a very broad V-shaped mark.
The wing vein R4+5 is clearly dipped into cell r4+5, and the costal margin of the wing is brown.
The base of the front and middle femora are dark brown. [3] [2]
Spilomyia sayi, the Four-lined Hornet Fly, is a fairly common species of syrphid fly. This species is found from western Canada to northeastern 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 and protein-rich pollen. The larvae are known as the short-tailed larvae, suited for moist areas such as rot holes of trees. It is a wasp mimic.
Brachyopa flavescens, The Yellow Sapeater, is a fairly common species of syrphid fly. It has been observed in northeastern 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 and protein-rich pollen. Larvae for this genus are of the rat-tailed type. B.flavescens larvae have not been described.
Palpada vinetorum is a species of syrphid fly in the family Syrphidae. It is a native flower fly species to North America, mainly found in Texas and parts of the east coast.
Eristalis transversa, the transverse banded drone fly, is a common species of syrphid fly first officially described by Wiedemann in 1830. 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 and protein-rich pollen. The larvae are rat-tailed type but larvae of this specific species has not been reported.
Blera badia, the Common Wood Fly, is a common species of syrphid fly first officially described by Walker in 1849. 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 and protein-rich pollen. The larvae are of the rat-tailed type, feeding on exuding sap or in the rot holes of trees.
Blera umbratilis, the Hairy Wood Fly, is an uncommon species of syrphid fly first officially described by Williston in 1887. 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 and protein-rich pollen. The larvae are of the rat-tailed type, feeding on exuding sap or in the rot holes of trees.
Hadromyia aepalius, the Sterling Quicksilver, is a rare species of syrphid fly found in eastern 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 and protein-rich pollen.
Palpada agrorum, the Double-banded Plushback, is a common species of syrphid fly first officially described by Fabricius in 1787. 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 and protein-rich pollen. The larvae are aquatic filter feeders of the rat-tailed type.
Blera pictipes, the Painted Wood Fly, is a rare species of syrphid fly first officially described by Bigot in 1883. 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 and protein-rich pollen. The larvae are of the rat-tailed type, feeding on exuding sap or in the rot holes of trees.
Blera humeralis, the Yellow-legged wood fly, is an uncommon species of syrphid fly officially described by Samuel Wendell Williston in 1882. Hoverflies are so-named for the ability to remain nearly motionless while in flight. The adults are known as flower flies, as they are commonly found around and on flowers from which they get energy-giving nectar and protein-rich pollen. The larvae are of the rat-tailed type, feeding on exuding sap or in the rot holes of trees.
Blera analis, the Orange-tailed wood fly, is an uncommon species of syrphid fly first officially described by Macquart, 1842. 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 and protein-rich pollen. The larvae are of the rat-tailed type feeding on exuding sap or in the rot holes of trees.
Blera scitula, the Western Wood Fly, is an uncommon species of syrphid fly first officially described by Williston in 1882. 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 the flowers from which they get both energy-giving nectar and protein-rich pollen. The larvae of Blera are of the rat-tailed type, feeding on exuding sap or in the rot holes of trees.
'Blera metcalfi , Metcalf's wood fly, is a rare species of syrphid fly first officially described by Curran in 1925 Hoverflies get their name 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 and protein rich pollen. The larvae are of the rat-tailed type feeding on exuding sap or in the rot holes of trees.
Meromacrus gloriosus, the Glorious Elegant, is a species of syrphid fly in the family Syrphidae. Originally described from Mexico by Frank Hull in 1941 this black and yellow wasp mimic has since been observed in many locations in Texas and New Mexico.
Brachyopa cinereovittata, the Grey-striped Sapeater, is a rare species of syrphid fly. It has been observed in northwestern 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 and protein-rich pollen. Larvae for this genus are of the rat-tailed type. B.cinereovittata larvae have not been described.
Brachyopa diversa , the Pale-striped Sapeater, is a rare species of syrphid fly. It has been observed in the northeastern part of 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 and protein-rich pollen. Larvae for this genus are of the rat-tailed type. B.diversa larvae have not been described.
Eristalis brousii, the hourglass drone fly, is a species of syrphid fly largely eliminated in most of its former range except in northern Canada. It was first officially described by Williston in 1882. The adults are also known as flower flies because they are commonly found around and on flowers from which they get both energy-giving nectar and protein-rich pollen. The larvae are aquatic filter-feeders of the rat-tailed type.
Sphiximorpha willistoni, or Williston's wasp fly, is a rare species of syrphid fly found in eastern North America. It is a strong wasp mimic. Hoverflies can remain nearly motionless in flight. The adults are also known as flower flies for they are commonly found on flowers, from which they get both energy-giving nectar and protein-rich pollen. Larvae in this genus are found in sap runs of trees.
Chrysotoxum baphyrum is a species of holarctic hoverfly. The adults are strong mimics of wasps. Larvae of this genera, when known, are aphid predators.
Chrysotoxum fasciolatum is a species of holarctic hoverfly. The adults are strong mimics of wasps. Larvae of this genera, when known, are aphid predators.
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