Monday, November 14, 2011

Camel Cricket


This crazy-looking long-legged bug is a camel cricket in the family Rhaphidophoridae. This family includes cave crickets, cave wetas, camelback crickets,and spider crickets. These crickets are known to love damp areas, such as under rocks, logs, outbuildings or basements. They can also be found in caves which earned them their other common name of cave cricket.

These crickets are characterized by their super long legs and antennae as well as a somewhat hump-backed shaped body. Their hind legs are extremely long with a somewhat chicken leg appearance. They lack wings like other crickets have, and instead crawl to their destinations. They have terrible eyesight so the long legs and antennae aid them in finding their way around in the often dark environments that they favor. It is not uncommon for these crickets to make their way into our basements. They are after the moist dark habitats they favor, and our basements often fit the bill perfectly. If you have an excess of these crickets it could signify that you have a moisture problem that may need to be addressed. Away from human dwellings they are often found deep inside caves. These inhospitable environs often make it hard for these crickets to locate food and it is not uncommon for them to consume their own legs for nutrition, even though they lack the ability to regenerate a new one. When faced with the approach of possible predators they will often lunge at the threat rather than retreat. This aggressiveness is a bluff however as these crickets are harmless. I would think this behavior would be counterproductive in the extreme and would often lead to them sacrificing their own lives in exhibiting such a power play. Then again perhaps it works. 

Adults and young nymphs will overwinter in dense vegetation or in human dwellings. In the spring they will become active and the adult females will begin laying eggs in the soil. In a few weeks the newly born nymphs will emerge looking almost identical to their adult counterparts. The adults and nymphs both feed on all sorts of organic matter, from animal to plants. They can become a nuisance in human structures such as basements when their food source runs low and they begin seeking other sources of food such as our stored clothing, linens and other keepsakes we do not want destroyed. 

 The following was taken from North Carolina's University website. I thought it was helpful info and wanted to pass it along to my readers.

Non-chemical control methods
Although pesticides can help reduce the nuisance problems with camel crickets, they are not a long-term solution. Effective control starts with eliminating harborage sites, reducing conditions that are conducive or attractive to these pests and by excluding these insects from our homes:
  1. gaps around crawlspace access doors provide access for camel cricketsCaulk or seal gaps and openings around windows frames, doors, foundation and clothes dryer vents, crawlspace access doors (picture at right), soffits, as well as where heating/AC and plumbing lines pass through the foundation.
  2. Install weather-stripping along the bottom of house and garage doors so that it fits tightly against the threshold.
  3. Stack boxes and other items off of the ground and away from the walls in a garage or storage building. This helps improve airflow and makes it easier to check for crickets and other pests, including termites.
  4. Reduce moisture indoors, as well as in other critical areas such as basements or crawlspaces.
  5. Keep ground cover and mulch at least 12 inches or more away from the foundation. When possible, use an inorganic cover such as gravel up near the foundation.
  6. Keep ground cover and shrubs away from the foundation and siding. Do not stack firewood against the house. Remove piles of lumber or other clutter under decks that might attract crickets and other pests.
  7. Place sticky boards, such as those used for cockroaches and mice, in corners and behind appliances to catch crickets that enter your home.
Chemical control Outdoors: Any chemical control should focus first on outdoor barrier treatments. Sprays applied to foundation walls, around vents crawlspace accesses, basement doors and windows, and insecticidal baits applied along the perimeter can be quite effective unless there are heavy rains. In crawlspaces, insecticidal baits placed in corners or along the sill plate will be most effective. Spraying in a confined area, such as a crawlspace, requires caution and the proper application and safety equipment. Granular baits are a better choice for use in a crawlspace, but these products are not readily available to the general public. You can or else contact a licensed pest control company for assistance. Consult your county Cooperative Extension Service Center or the North Carolina Agricultural Chemicals Manual for a list of appropriate pesticides.

Indoors: Any of the common household (indoor) insecticides can be applied to baseboards, and areas behind appliances. However, if you follow the steps outlined earlier for excluding these pests, the need for indoor applications should be reduced.
 

Sunday, November 13, 2011

Chinese Mantids

Chinese mantids (Tenodera sinensis) are impressive praying mantids to say the least. They are large, expert predators that prey on a wide variety of insect yummy's. I've often referred to them as the T-Rex of the insect world, after all the resemblance is there with the short front legs and the almost raptor like way they capture and consume food. They aren't limited to just eating insects and spiders however, they are also capable of capturing and consuming frogs, and even hummingbirds.

Chinese mantids are native to Asia and made their way to the United States probably in a shipment of plants. They were first discovered in Philadelphia in 1896. They now have a stabilized population throughout the Eastern United States and are beginning to expand their range to include portions of the Western United States. They are aggressive hunters and compete for food with other native species of mantids. This could potentially pose a threat to another Missouri Mantid, the Carolina Mantid. This smaller cousin of the Chinese Mantid is native to Missouri and often finds itself prey to the larger more intimidating Chinese Mantid. They also compete for some of the same food resources.


 These praying mantids even exhibit signs of being territorial and will not tolerate those of their own kind in their vicinity. I captured this eerie image (below) of a smaller (immature) praying mantid that was sans head. It was still very much alive and crawling around the cedar tree completely without its head. It remained alive, I assume running on nerves, for several hours before finally succumbing to death. It illustrates the often gruesome world that insects are a part of. It is truly a bug-eat-bug world out there. 



Mating occurs late in the summer, the female emits a strong pheromone (Chemical perfume) that attracts males from great distances. Many of us have heard the tale of how the female will bite the males head off during mating. In some instances this is true, she is certainly capable of it, and if she feels he isn't performing up to her expectations she will chomp his head off and this triggers a response in the male which increases his performance and offers her a tasty nutritious snack that will aid her in egg production. This gruesome beheading doesn't always take place though, most of the time the male walks away with his head, I suppose it all depends on the females mood. Being a male praying mantid is truly living life on the edge. Once mated, the female will lay her eggs within a foamy egg case called an oothecae, this frothy mixture hardens to protect the eggs and once dry resembles styrofoam. 


These egg cases overwinter and the following spring the young will emerge. Typically the first meal of many of these tiny praying mantids will be their siblings. Fewer than 15% of the newborn mantids survive to adulthood.


 Praying mantids can be found in meadows, along roadsides, near gardens, grassy areas, wildflower prairies, most anywhere their insect prey can be found. These insects are favored by gardeners everywhere. Many gardeners order them from  mail order supply houses to releases in their gardens. This is good in theory but typically they will fly away shortly after being released and will probably supply your neighbors garden. 
 Occasionally like any other creature they can become injured. Whether it is from tangling with something much bigger than itself, like perhaps a bird. Or from a fall, or some other unknown source they can and do sustain injuries, like one pictured above. Notice the two different colored eyes. This particular mantid was having great difficulty in keeping its balance and could barely stay in a standing position on my hand. Most likely this one will become part of the food chain as it cannot defend itself properly.
These large insects make excellent pets as well. They are easily kept in aquariums or bug keepers. They eat a variety of insects, so you can catch grasshoppers, crickets and moths in your yard to feed them. They almost seem to possess a personality, they will follow you with their eyes, and they are sure to win you over. Many people ask if they bite, and like most any insect if they are mishandled they can bite. Praying mantids cannot bite through human skin, so it would feel more like a pinch. The males have spines on their front legs and if they should happen to grasp you with them it is possible for them to draw blood, it would be like a scratch that bleeds. Males also tend to fly. Females would make a better choice. To tell the difference is relatively easy. Females have large abdomens, giving them a "fat" look. This is for egg production. Males are very slender. Happy hunting.

Thursday, November 3, 2011

Green Stink Bug

Green stink bugs seems to be the most prevalent insect in my backyard right now with exception possibly to the Asian Ladybug, so to have a picture with both invaders seemed only natural.

This species of green stink bug (Chinavia hilaris) is one of the most common of all stink bugs found in gardens throughout North America. They are fairly large at 3/4 of an inch in length. The color is uniformly bright green with yellowish margins near the abdominal region.

These stink bugs are readily found near woodland edges, in agricultural fields, and gardens. I have hundreds of them in my yard this fall, which could be in large part because of the unseasonably warm temperatures we've been having. It could also be because of a lack of available predators to feed on them. Perhaps it is just a good year for them. The nymphs of this particular species give no indications of the adult form it will soon be. They look entirely different......the shape is somewhat similar, but look at the color! Early instar nymphs will be beautiful combinations of black, green and orange. Later instar nymphs will begin taking on the trademark green color. After 5 instars (molts) they will reach adult size, usually by August or September.

(4th instar)

These bugs are plant feeders and use their piercing mouth parts (called a rostrum) and a special enzyme in their saliva that breaks down plant tissue to suck the juices out of a wide variety of plants. It is much like humans sucking juices through a straw. Think...."insect SLURPEE!" Often times these little bugs can become major pests, especially if they occur in large numbers and take a liking to your prized garden plants or agricultural crops. They are known to feed on tomato, bean, pea, cotton, corn, soybean, and eggplant as well as hundreds of others. It seems we can add bald cypress to the list of known plants as many of the green stink bugs found in my yard were feeding on the sap coming out of the tree. I also found them on Ninebark and Elm gleaning sap from them as well.

Their feeding habits can spread diseases to plants, it can also zap the plants of vital nutrients and ultimately stunt the plant which may result in death of the plant.

Stink bugs get their common name from the defense mechanism that these little stink bombs implement when disturbed or threatened. They possess gland located on the underside of their bodies that emit a musk-like vile smell that is sure to repel any predator bent on handling them or eating them. Young stink bugs will hide under leaf litter to wait out Missouri's cold winter months. When spring returns they will become active again and begin seeking mates. After mating, the females will lay their barrel-shaped eggs in clusters on the underside of leaves. The young hatch and feed on plant juices just like their adult counterparts. There may be several generations per year and it is common to find them in all stages of development in the same area. The life expectancy of green stink bugs is about 2 months in warmer climates, in areas where the onset of winter sends them into a dormant stage they will live many months longer.


Biological control is often attempted in areas where they are causing extreme damage; certain parasitic flies and parasitic wasps are known to use these bugs as the host for their own offspring. Many creatures are brave enough to risk the stink bomb for a quick meal....frogs, toads,spiders and birds will all make a meal out of these bugs.

Friday, October 28, 2011

Red Admiral Butterfly

This beautiful black and red butterfly is a red admiral (Vanessa atalanta), and they are a common sight throughout Missouri as well as their entire range of North America, Asia and Europe. There are two generations per year in the United States, and each generation varies a little. The winter form that appears early in the spring will be smaller and duller in color, whereas the summer form will be much larger and brighter in color. Their wingspan will range in size from 1 3/4 to 3 inches.

Most of North America must be recolonized each spring by southern migrants of this species. They are known to overwinter in Southern Texas, and most likely in other southern regions where the temperatures and food sources will allow. They have a very erratic, rapid flight that can make capturing them or photographing them difficult, but they are one of the most beautiful butterflies to visit any garden.

The adults feed on sap flows, rotting fruit, and bird droppings. They nectar only when those preferred food sources are not available. When found nectaring they seem to prefer common milkweed, red clover, coneflower, aster, and alfalfa, but will also be found on other varieties as well.

Males perch on ridgetops where available to wait for passing females.....if no ridgetops are available they will choose high vantage points that allow them a good view of neary females. After mating, females will lay their eggs singly on the leaves of the host plant. In the case of these butterflies they use nettles, and possibly hops.

Their preferred habitat is moist woods, yards, parks, marshes, seeps, moist fields. During migrations, the Red Admiral is found in almost any habitat from tundra to subtropics.

I find them in my gardens in large numbers each year, both because I have nettles that I allow to grow in small populations to encourage their visit, and because our yard is near a moist woodland. Nettles are not generally the favorite plant of most people, although they are edible if fixed right. If you can manage to tolerate a few stray nettles you are amost guaranteed to attract this species to your yard.

Monday, October 24, 2011

A big Hello and Thank you


I just wanted to write and Thank each one of my followers and visitors for your kind comments and enthusiastic support of MObugs. I appreciate each and every one of you. I may not always leave comments on your blogs, but trust me I am visiting, reading and enjoying your posts very much. I count my blessing each day to have such wonderful "web-friends."

Saturday, October 22, 2011

Plains Dog-Day Cicada

This small cicada is the Plains Dog-Day Cicada (Tibicen auriferus). They are found throughout most of the Midwestern states. This is one of eleven species of cicadas that call Missouri home. They measure approximately one inch in length with the wings extending another 1/4 to 1/2 inch past the abdomen.

They are commonly found in grasslands and meadows near forested areas. These were found on a farm my husband family owns in Andrew County. It is predominately tall grass meadows with woodlands...perfect habitat for these cicadas. What is odd though, this is the first time we've ever found them on this farm. They have a very distinct call that sounds like a chainsaw cutting wood. It is very high pitched an whiney.

This species reportedly feeds on vascular plants such as conifers, ferns and horsetails. They are found from July through September which are typically the hottest days of the year. It is the emergence of these cicadas in conjunction with the "dogdays" of summer that has earned them their common name of Dog-day cicadas.

Cicadas are an important part of the food chain and provide nutrition for many animals from mice, squirrels, raccoons, foxes, coyotes, and even large spiders.

Saturday, October 15, 2011

Admirable Grasshopper

 (male)

Admirable Grasshoppers (Syrbula admirabilis) are sometimes referred to as handsome grasshoppers and it is easy to see why. This is one of the prettiest species of grasshoppers to call Missouri home. They occur throughout the central and eastern portions of the United States including Arizona. Males and females look different from each other so it is somewhat easy to differentiate them. Males are darker, even blackish in color and are smaller than females. The females is generally green or brown. Males are good fliers, whereas females are poor fliers and typically hop to get away.  They are associated with dry grassy areas, like prairies, meadows and hay fields. 

(female)

This grasshopper feeds on a wide variety of plants, but is not known to cause any significant damage to forage or agricultural crops. Their population density tends to fluctuate from year to year. I rarely see more that a few individuals at a time in any given area. This is a late emerging species and the nymphs begin appearing in July. Mating between adults takes place late in the season after an elaborate mating ritual initiated by the male. He will wave his antennae, sing loudly and tipping his femora (thick upper portion of the back legs) towards the female. The males do not force themselves on the female like in many other species. I guess you could say these are the gentlemen of the grasshopper world. Once mated the female will lay egg masses under the ground. These egg masses will overwinter and emerge the following summer.

Friday, October 14, 2011

Diamondback Water Snake


On a recent trip to Squaw Creek NWR Cindy and I drove the 10 mile auto tour and discovered this beautiful snake in the road. Upon first seeing the snake her and I thought it was a northern water snake which are very common around here. I posted these pictures to facebook and soon received a correction from a friend and snake expert named Dan Krull that this snake was instead a Diamondback water snake (Nerodia rhombifer rhombifer). Even better,as I had never seen this species before.

Water snakes are notoriously cranky snakes and often strike without warning. This feisty demeanor has earned them a bad reputation. In addition they are often mistaken for the venomous Cottonmouth and needlessly killed. While it is true they very much resemble the cottonmouth and hang out in the same environments and habitats as the cottonmouth the cottonmouth does not occur this far north in Missouri. The likelihood of actually seeing a cottonmouth in NW Missouri is less than 1%. However with global warming, habitat destruction and human persecution that could change over time and their populations could extend further north. This however would be many decades in the future and certainly not a concern now.


The diamondback water snake occurs in southeastern Missouri and over much of the northern, western and eastern parts of the state. It appears to be absent from the ozarks, as their favored habitat of marshes and wetlands are severely lacking in that region. These are the largest of all the water snake species found in Missouri and are very heavy-bodied. They have numerous diamond-shaped markings along their back which earned them their common name. This species has a high variance in color and may be gray, light brown and even a dull yellow. The belly is bright yellow and there are distinctive black lines running vertically through the mouth. This species may reach lengths up to more than 5 feet, but more commonly are in the 4 foot range.


They are active from late March until October. They can be found basking on logs or over hanging branches near water. During the hottest parts of the year they become nocturnal and will be found warming on roadways at night. These snakes can be highly aggressive and if molested will not hestitate to bite. This particular specimen was extremely tolerant and only struck when I placed my foot near its face. It allowed us to take numerous photos and actually had to be coaxed off the road so it would not be hit by the next car to come along. I am always quick to try and remove a snake from the road, as many drivers are not as tolerant of snakes as I am. Many people feel it is their duty to remove all snakes from their region and go out of their way to do so. Many snakes are cruely and needlessly killed on the roads each year.

Like all water snakes this species feeds on frogs, fish and other aquatic creatures. They are considered a bit of an expert at catching catfish and seem to favor that particular variety of fish over all others. Many would argue that if they are eating fish and frogs what good are they? Well they aid in culling out diseased, weakened or even dead fish from an ecosytem. Frogs can and do become over populated and need to have their numbers regulated, and these snakes do an awesome job of that. Out west where the large bullfrog has become invasive and is waging war against native frogs, these water snakes do their part to reduce the number of bullfrogs in those areas.



Water snakes give birth to live young sometime in late August through October. They may have as many as 62 offspring that will measure a foot or more in length. After the first freeze these snakes will return to their hibernation sites. It is at this time these snakes may be found most anywhere. They travel sometimes up to a mile or more to reach those hibernaculums.


Wednesday, October 12, 2011

Widefooted Treehopper


This odd looking thorn-like creature is a widefooted leafhopper (Campylenchia latipes). They have mastered the art of camouflage to perfection. When they sit quietly, unmoving, they are easily mistaken for the thorns they mimic. It isn't until they quickly move around the stalk of a plant that the ruse is discovered. According to bugguide.net this is the only treehopper with the forward facing "horn" on its head. They are brown in color with flanged or wide spread leaf-life front legs. They have large eyes for their overall size.


This species is often tended by ants (you can see the nearby ant in the first picture). The relationship to the ants seems necessary for their overall population growth. Individuals that are not tended by ants tend to be susceptible to parasites and fungal infections. The ants consume the "honeydew" that the treehoppers expel from their anus. This is an extremely sweet substance that ants cannot resist. Honeydew that is not eaten by ants can build up and create an environment for fungus. It is this fungus that can kill treehoppers. 
Treehoppers are members of the order hemiptera, in the family Membracidae. They have sucking mouth parts and will feed on the juices of plants. This species tends to favor tickseed and asters.

Females lay their eggs at the base of plants. When the eggs hatch the nymphs feed and molt. With each molt they climb higher on the plant. The adults will be more often seen in the late summer or early fall. There will be several generations per year in NW Missouri. The last generation will most likely overwinter in the egg stage.

Tuesday, October 11, 2011

Fall Webworm

We've all seen these messy looking tent-like webs that often engulf trees in the fall. They are the handiwork of the Fall webworm (Hyphantria cunea).
While these webs are unsightly and certainly not aesthetically pleasing they do not cause any lasting damage to trees. The female moth will lay her eggs in clusters of up to a hundred on the bottom side of leaves. They will be encased in a hair-like substance that protects them until they hatch approximately a week later. The caterpillars begin feeding on the surface of the leaves and as they eat they produce a silky substance that is used to form the webs. As the caterpillars grow so too does the tent. In large colonies the tents may encompass the entire tree. When the caterpillars are in their last stage of growth before forming their cocoon they well begin feeding on the entire leaves of the tree. The reason these caterpillars have very little affect on the overall health of the trees they are feeding on has to do with the time of the year they are found. Trees in the fall are nearing the end of their growing season and preparing to go dormant for the winter. Sap and vital nutrients that the trees depend on in the growing season are now receding back into the heart of the tree. Therefore these caterpillars can munch away and the trees can withstand the feeding frenzy and come back to their former beauty the following spring. The only exception to this may be if you have extremely young trees or ornamental trees. The moths are native to North America and can be found throughout the United States, Canada and Mexico. In 1940 these moths were accidentally introduced to Yugoslavia and from there it wasn't long before they spread to other countries. They are now found nearly Worldwide. In North America they are known to feed on approximately 120 tree species. They predominately favor hardwood species like walnut, pecan, hickory, elm, maple and fruit trees. Worldwide there are over 600 species of trees they are known to feed on.

As caterpillars they are highly variable in their appearance and can range in color from pale yellow to dark gray with yellow spots. They will have a combination of long and short bristly hairs, and two pale stripes running the length of their bodies. They will remain caterpillars for 4 to 6 weeks before forming a cocoon and emerging the following spring. In the pupal stage they can be found at the base of trees tucked away under fallen bark and leaves.


As adults they are mostly white in the northern part of their range, whereas in the southern part of their range they may be marked with black or brown spots on the forewings. The front legs have bright yellow or orange patches. They have a wingspan up to 2 inches and their bodies are extremely hairy, which aids in keeping them warm as they fly around at night. These moths readily come to lights at night and will often be seen at porch lights.


This species is often mistaken for tent caterpillars, because of the similar tent-like webbing that each species creates. The tent caterpillar however commonly occurs in the spring and they build a web home in the V's of trees, whereas the fall webworm is found in the fall (like its name suggests) and build their homes at the end of limbs. The fall webworm has a much messier tent than that of the tent caterpillar as well. So while these messy, webby tents are not that attractive to look at, rest assured your tree is safe and will be back next spring. The little caterpillars will most likely find a new tree to build their home in as the cycle starts all over again.