Latrodectus is a broadly distributed genus of spiders with several species that together are referred to as true widows. This group is composed of those often loosely called black widow spider, brown widow spiders, and similar spiders. However, such general “common names” are of limited use as the diversity of species is much greater. A member of the Theridiidae family, this genus contains 32 species, which include several North American “Black Widows” (Southern Black Widow Latrodectus mactans, Western Black Widow Latrodectus hesperus, and Northern Black Widow Latrodectus variolus). In addition to these in North America are also the Red Widow Latrodectus bishopi and the Brown Widow Latrodectus geometricus, which, in addition to North America, has a much wider geographic distribution. Elsewhere, others include the European black widow (Latrodectus tredecimguttatus), the Australian Redback Black Widow (Latrodectus hasseltii), several different species in Southern Africa that can be called Button spiders, and the South American black widow spiders (Latrodectus corallinus and Latrodectus curacaviensis). Species vary widely in size. In most cases, the females are dark-coloured, but some may have lighter bodies or even reddish. Many can have red, white or brown markings on the upper-side (dorsal) of the abdomen. Some can be readily identifiable by reddish markings on the central underside (ventral) abdomen, which are often hourglass-shaped.
Color printing is the reproduction of the written word and images in the form of color impressions, which can either be used for a full page or for partial design. It involves separation of different primary color pigments that can be added or deducted to give an impression of other hidden hues. In order to give rise to a neutral color, the process requires the addition of the primary hues in predetermined quantities. The most common use of this technology is in the industrial sector, especially in the print media, where countless impressions must be made in graphical representation to arrive at a preset format of mass reproduction to be used daily. You need to keep in mind that color-by-number printables are designed for kids, who've got certain problems with the learning process and diligence. Many moms and dads have valued the evident pros that these coloring pages can offer. The main positive aspect of color by number pages is that these materials turn the whole process of learning into an enjoyable activity. Therefore your daughter or son will study the ropes of maths when coloring different images. That goes to show that the images on the books should be simple to relate with and identify. In addition, stick to books that have easy coloring pages, which have well-spaced images for sample coloring and ensure you have enough crayon and coloring pencils to for all. You can have two kids on a book each taking a turn to color an image. It is a great way of teaching them the values of sharing. As she is leaving, her final request is often for me to print a few more pages for her to take home or even a large batch so she can share with her friends when they visit. Of course, as always I am too happy to oblige. Especially as it's so cheap to print them out. Few things are so cheap but can still make a child so happy these days.