Scarce swallowtail Republic have been found to be a good indicator of relatively well preserved xerothermic grassland habitats with forest-steppe vegetation, which have no cutting history. In some years the scarce swallowtail is quite abundant. The scarce swallowtail is getting rarer as the blackthorn bushes are being cleared. The butterfly is now protected by law in the Czech Republic, Slovakia, Germany, Hungary, Luxembourg, Russia, Ukraine and Poland. It is considered rare and endangered and protected in some provinces of Austria and of indeterminate status throughout Europe. In Armenia the species demonstrates stable population trend and is evaluated as Least Concern. Though referred
Comma category with domain formula_65" in. An object of formula_78 is called a "morphism from formula_4 to formula_80" or a "formula_4-costructured arrow with codomain formula_80" in. Another special case occurs when both formula_4 and formula_5 are functors with domain 1. If formula_85 and formula_86, then the comma category formula_6, written formula_88, is the discrete category whose objects are morphisms from formula_8 to formula_10. An inserter category is a (non-full) subcategory of the comma category where formula_91 and formula_92 are required. The comma category can also be seen as the inserter of formula_93 and formula_94, where formula_95 and formula_96 are the two projection