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black with red eyes. Adults are 1/4 inch long and resemble house flies. A "checkerboard" appearance of the top of the abdomen and the distinct stiletto-like proboscis of the stable fly which extends forward beyond the head will separate this species from adult house flies. larvae have a typical maggot shape. There are three larval stages. The last stage larva is about 10 mm long and is a cream white color. After the third stage larva completes feeding it shortens, hardens and darkens in color. The chestnut brown pupa is 6 to 7 mm long.
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Term
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Definition
Scutum- Dorsal shield
Males: Scutum covers most of body
Females: Scutum covers about half of body
Capitulum (Mouth parts) are obviously seen from above.
American dog tick:
Female- Obvious white scutum over half of body, rest of body reddish brown in color
Male- Scutum over whole body with white and reddish brown splotches
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Lonestar Tick
Female- Dark brown/red scutum with bright white spot in center of back
Male- Smaller than female with dark brown/red scutum with lighter colored vertical stripes at bottom of scutum.
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have large heads and large eyes
A distinguishing characteristic is patterned gold or green eyes
dark bands across their wings |
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Eggs with embryo are approximately 0.5 mm long and cemented to hairs.
Nymphs are 0.69mm and grow to 1.06mm.
Adults have a short broad head, broad sensoria on segments four and five of the antennae, and it has a hexagonal shaped sternal plate on the thorax. The front claws are the smallest of the three pairs. The middle and hind claws are about the same size. Adult males measure 1.08 mm and the adult females are 1.5 mm in length.
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Term
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Definition
belong to the family Tabanidea.
-Often compared to the Deer Fly but are considerably larger
-Only female horse flies feed on blood and are typically those who bite.
- bite is not meant as a method of attack but mostly a method of escape because the bite hurts so bad that the victim will focus on the bite rather than trying to swat and kill the fly.
-Horse flies are typically most active on warm, sunny days, where the wind is not blowing. They are found around livestock barns and feedlots and trying to control populations is rather impractical.
-Repelants containing DEET are about the only way to cut down on the flies.
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yellowish-white with a red head. Along the abdomen, there are 8 dark cross bands.
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[image][image]
Scientific Name: Musca domestica
Description: flies are 3/16 to 1/4 inch long with robust bodies and two clear wings. The thorax is marked with four dark stripes. Larvae are called maggots and are creamy-white and cone-shaped, with the hind end blunt and bearing breathing holes (spiracles) tapering to the head which bears black hook-like mouthparts. They do not have stiff mouth parts and do not bite. |
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louse is a wingless insect that is only 3.4 - 4.8 mm long and they are dorsally-ventrally flattened. They have a narrow, short head with a broad body. The head and thorax are yellowish-brown and the abdomen is blue. They have claws on their legs that they use to hold onto the hair. The egg is delicate, white and barrel-shaped and the nymph is very similar in appearance to the adult. The eggs attach to the hair with a glue like substance.
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Definition
Musca autumnalis
Adult -- About 6 to 8 mm long, this nonbiting fly resembles its close relative, the house fly. The thorax of the face fly is gray with four dark stripes. The abdomen of the female is primarily black with an orange base and the eyes are surrounded by a silvery stripe. The abdomen of the male is orange-brown with a black base and a black dorsal stripe; the male's eyes almost touch in the center.
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is a very destructive insect causing almost $66 Million loss excluding insecticides. The adult is referred to as a “Heel or Warble” fly. A single female can lay up to 500 eggs in its life time. The eggs are laid on leg hairs and hatch in 3-7 days. They bore into the cow and over the next 8 month travel towards the backline of the infected cow. In the larvae’s wake they leave a substance called butchers jelly. The grubs reach the back in January or February and spend next two months just under the skin as large cysts. When the larvae is finished in the first and second molting cycle they drop to the ground in a hard shell. This stage is called a pupa. The fly emerges 2 months later and the cycle begins again.
Control
The grub is the easiest to control and can be eliminated by using pesticides like Ivermectin (Ivomec) and Doramectin (Dectomax). The grub is killed in the cow eliminating the possibility of a new generation if all cattle are treated correctly.
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The adult fly emerges during the spring and summer. It is a large hairy fly that kind of resembles a honeybee. The flies lay their eggs on the legs of the cattle at about 600 eggs per female. In about 4 to 7 days the eggs hatch and the larvae will then burrow under the skin and migrate to the epidural tissue in the spinal canal. When they reach the back they form a warble which looks like a huge pimple basically and chew a breathing hole in the skin where they sit and grow for about 2 months until they reach about an inch in size. When the grub reaches that size they emerge through the breathing hole and drop to the ground where they can sit for 2 to 8 weeks until they turn into the adult fly.
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