Araneus praesignis mm) and females (7 mm) of "Araneus praesignis" have large black decorations on the upper rear (dorsal posterior) of the abdomen, thought to be a case of Batesian mimicry where an animal has markings making it appear larger and more threatening than it really is. The spider was described by Ludwig Koch in "Die Arachniden Australiens", 1872. "Araneus praesignis" shelters during the day in a silk-bound retreat made in a non-fully-closed leaf nearby where its web is erected at night. Its food is night-flying insects and other invertebrates. It is harmless to humans and can be handled by people without
Black garden ant Black garden ant The black garden ant ("Lasius niger"), also known as the common black ant, is a formicine ant, the type species of the subgenus "Lasius", found all over Europe and in some parts of North America, South America, Australia, Asia and Australasia. The European species was split into two species; "L. niger" is found in open areas, while "L. platythorax" is found in forest habitats. It is monogynous, meaning colonies have a single queen. "Lasius niger" colonies can reach in size up to around 40,000 workers in rare cases but 4,000–7,000 is around average. A "Lasius niger" queen