| Chrysotoxum pubescens | |
|---|---|
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Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Diptera |
| Family: | Syrphidae |
| Genus: | Chrysotoxum |
| Species: | C. pubescens |
| Binomial name | |
| Chrysotoxum pubescens Loew, 1860 | |
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| C.pubescens range 2023 | |
| Synonyms | |
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Chrysotoxum pubescens the Yellow-throated Meadow Fly is a North American species of syrphid fly in the family Syrphidae.The adults are strong mimics of wasps. [1] Larvae of this species has been described. [2] [3]
For terminology see Speight key to genera and glossary
1.5 mm (0.06 in)
The antennae are shiny black, with the second joint being longer than the first, and the third joint being subequal to the two preceding together.The eyes are pilose, wide apart in the female, and touching each other in the male . The face is yellow with a black stripe down the middle, and a black stripe at the lower eye margin separates the face from the gena. The underside or cheeks have an extensive pale yellow coloration, which is referred to the common name Yellow-throated Meadow Fly. The frons is black, with long yellow hair. On the female, there is a yellow pile spot on each side above the antenna base.
Thorax: The lateral stripes of the thorax are interrupted, and the median vittulae are conspicuously whitish and pollinose. The proepimeron (above the front coxa) is yellow which is referred to in the common name Yellow-throated Meadow Fly. The scutum is black, covered with sparse, long yellow hair, including the sides (longer on the female). There are obvious, longitudinal grayish pile stripes down the middle, one on each side of the center, which may be faint or absent on the male. There is also a slightly interrupted, wide yellow stripe on the side edges. The scutellum is yellow, with a black center. The pleura of the thorax has a large yellow patch. There is a smaller pale yellow spot below the large patch, sometimes touching, a second small spot close to the head across from the large patch, and two more small spots on each side of the wing base.
The first segment of the abdomen is black, while all the remaining segments have a scant covering of erect, yellow hair. Starting at the lower outside edge of each segment, arched yellow stripes arch to near the base of the segment at the center, and are interrupted at the center. On the lower margin of each segment, there is a slightly lighter yellow stripe, which is thicker at the center and increases in thickness progressively on each segment. Additionally, there is a tiny reddish-orange blotch at the lower edge of each segment, where the stripe starts and the base of the next segment is directly below it. On the fifth segment, there is an elongate yellow triangular spot on the hind margin, with a black inverted V or Y shape between it and the thick yellow fascia. Finally, the venter of the abdomen is black.
The legs are yellow. The hind femur is more reddish-yellow on the last half, and the tarsi are also more reddish-yellow. [3] [4] [5]
The species is found in Canada and United States. [5] (see distribution map)
Chrysotoxum flavifrons, the Blackshield Meadow Fly, is a species of North American hoverfly. They are wasp mimics.
Blera nigra , the golden-haired wood fly, is a fairly common species of syrphid fly first officially described by Williston in 1887 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 acutus, the Carolinian elegant, is a species of syrphid fly in the family Syrphidae. This uncommon species is distributed in the Eastern United States and South America. Notable for the black and yellow pattern mimicking wasps. 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. They are found in rot holes of trees.
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 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.
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 flukei, the red-cheeked wood fly, is a rare species of syrphid fly first officially described by Curran, 1953 as Cynorhina flukei. 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 confusa, the confusing wood fly, is a common species of syrphid fly first officially described by Johnson, 1913 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 robusta, the greenish wood fly, is a rare species of syrphid fly first officially described by Curran in 1922. Hoverflies get this 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 the 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 analis, the orange-tailed wood fly, is an uncommon species of syrphid fly. It was officially described by Macquart, 1842. Hoverflies get their names from their 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.
Helophilus obscurus , the Obscure Marsh Fly, is a common species of syrphid fly observed throughout Canada and the northern United States and Rocky Mountains. 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. The larvae of this genus are associated with wet decaying organic material, particularly accumulations of decaying vegetation in ponds and mud and farmyard manure or silage the larvae of this species are not known.
Palpada albifrons , the White-faced Plushback , is a rare species of syrphid fly observed in from Mexico north-eastward along the coastal areas of the United States. 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. The larvae are aquatic.
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.
Eristalis brousii, also known as the hourglass drone fly, is a fly species in the Syrphidae family first described by Samuel Wendell Williston in 1882. Aside from Northern Canada, the species has been largely eradicated throughout North America. Eristalis brousii are part of the hoverfly family, known for hovering above flowers to collect nectar and pollen.
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.
Microdon ocellaris, the hairy-legged ant fly, is a rare species of syrphid fly observed in the eastern United States. 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. The larvae have been found in the nests of Formica pallidefulva.
Chrysotoxum baphyrum 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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