The Acanthosomatidae is a family in the order Hemiptera commonly known as shield bugs. They are characterised from related families in having only two tarsal segments. Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms (as opposed to folk taxonomy). ... Phyla Subregnum Parazoa Porifera (sponges) Subregnum Agnotozoa Placozoa (trichoplax) Orthonectida (orthonectids) Rhombozoa (dicyemids) Subregnum Eumetazoa Radiata (unranked) (radial symmetry) Ctenophora (comb jellies) Cnidaria (coral, jellyfish, anemones) Bilateria (unranked) (bilateral symmetry) Acoelomorpha (basal) Orthonectida (parasitic to flatworms, echinoderms, etc. ... Subphyla and Classes Subphylum Trilobitomorpha Trilobita - trilobites (extinct) Subphylum Chelicerata Arachnida - spiders,scorpions, etc. ... Classes & Orders See taxonomy Insects are invertebrate animals of the Class Insecta, the largest and (on land) most widely-distributed taxon within the phylum Arthropoda. ... Suborders Heteroptera Homoptera Hemiptera is an order of insects, comprising some 67,500 known species in two suborders, Heteroptera and Homoptera. ... Families Acanthosomatidae Aphylidae Canopidae Cimicidae Coreidae Corixidae Cydnidae Dinidoridae Enicocephalidae Gerridae Lestoniidae Lygaeidae Megarididae Miridae Naucoridae Notonectidae Pentatomidae Phloeidae Plataspididae (Plataspidae) Reduviidae Scutelleridae Tessaratomidae Thaumastellidae Thyreocoridae (Corimelaenidae) Urostylididae (Urostylidae) Veliidae Heteroptera (also called true bugs) is a suborder of the order Hemiptera. ... Suborders Heteroptera Homoptera Hemiptera is an order of insects, comprising some 67,500 known species in two suborders, Heteroptera and Homoptera. ... Families Acanthosomatidae- Shield bugs Aphylidae Canopidae Cydnidae- burrowing bugs Dinidoridae Lestoniidae Megarididae Pentatomidae- stink bugs Phloeidae Plataspididae (Plataspidae) Scutelleridae- shield-back bugs Tessaratomidae Thaumastellidae Thyreocoridae (Corimelaenidae)- black bugs Urostylididae (Urostylidae) Shield bug and stink bug (or shieldbug and stinkbug) are common names applied to various insects of the Hemiptera order... The arthropod tarsus is usually the fifth and last segment of the arthropod leg, although it is the seventh among spiders, as a patella is present in that group, between the femur and the tibia, and a metatarsus is also present, between the tibia and the tarsus. ...