Suborder Sternorrhyncha (Mealy bugs, Scale insects, Jumping plant lice, White-flies, Aphid) Suborder Auchenorrhyncha (Cicadas, Leaf & Plant-hoppers) These suborders include large and diverse groups of insects, different in shape. They are mostly small-sized, plant-feeding species, act as vectors of the plant diseases. Diagnostic characters: 1. Antennae very short (bristle-like, Auchenorrhyncha), in some insects long and filiform (Thread-like, Sternorrhyncha). 2. Wings usually slopping over sides of body at rest, some forms wingless, fore wings uniform in texture sometimes hardened than hind wings. 3. Base of sucking beak arising from back of head (Auchenorrhyncha), or when present, arising between front coxae (Sternorrhyncha). 4. Tarsi 1-3 segmented (3 segments in Auchenorrhyncha) (1-2 segments in Sternorrhyncha). 5. Metamorphosis usually gradual, sometimes complete in males, more rarely so in females. Suborder Sternorrhyncha (Mealy bugs, Scale insects, Jumping plant lice, White-flies, Aphid) Key to some superfamilies of Sternorrhyncha (Coccoidea) 1. Tarsi usually 1-jointed, with one claw; apterous. Males usually dipterous, mouth parts atrophied. Female scale-like or covered with wax (Mealy bugs & Scale insects) ......Coccoidea Tarsi 2-jointed with two claws; wings when present 4 in number ...............................................2 2. Hind femora enlarged for jumping; antennae usually 10-segmented; fore-wings harder than hind ones (Jumping plant lice) ...................................................................................Psylloidea Hind femora not enlarged, long, slender; antennae 3-7 segmented; wings of same structure ......3 3. Wings opaque, whitish, or mottled with spots or bands; no processes on the abdomen (White- flies) .......................................................................................................................Aleyrodoidea Wings, when present, transparent and paired; dorsal processes usually present on the abdomen (Aphids) ..................................................................................................................Aphidoidea Superfamilty Coccoidea Key to some families 1. Body, usually hidden by waxy or scale-like covering; sessile during most of life .......................2 Body covered with powdery wax; mobile throughout life ...........................................................3 2. Body covered with hardened shell formed from wax, shed skins and fibrous material easily removable (armed scales) .........................................................................................Diaspididae Body covered with soft wax not easily removable (soft scales)......................................Coccidae 3. Larger size...............................................................................................................Margarodidae Smaller size..........................................................................................................Pseudococcidae Superfamily Coccoidea Margarodidae Icerya purchasi ﺍﻟﺒﻖ ﺍﻟﺪﻗﻴﻘﻲ ﺍﻷﺳﺘﺮﺍﻟﻲ Superfamily Coccoidea Margarodidae Icerya aegyptiaca ﺍﻟﺒﻖ ﺍﻟﺪﻗﻴﻘﻲ ﺍﻟﻤﺼﺮﻱ Superfamily Coccoidea Pseudococcidae Planococcus citri ﺑﻖ ﺍﻟﻤﻮﺍﻟﺢ ﺍﻟﺪﻗﻴﻘﻲ Superfamily Coccoidea Pseudococcidae Maconellicoccus hirsutus ﺑﻖ ﺍﻟﻬﺒﺴﻜﺲ ﺍﻟﺪﻗﻴﻘﻲ P ink hibiscus mealybug Superfamily Coccoidea Pseudococcidae Nipaecoccus vastator ﺍﻟﺒﻖ ﺍﻟﺪﻗﻴﻘﻲ ﺍﻷﺭﺟﻮﺍﻧﻲ Superfamily Coccoidea Coccidae Ceroplastes floridensis ﺣﺸﺮﺓ ﺍﻟﻤﻮﺍﻟﺢ ﺍﻟﺸﻤﻌﻴﺔ Superfamily Coccoidea Coccidae Ceroplastes rusci ﺣﺸﺮﺓ ﺍﻟﺘﻴﻦ ﺍﻟﺸﻤﻌﻴﺔ Superfamily Coccoidea Diaspididae Chrysomphalus ficus ﺍﻟﺤﺸﺮﺓ ﺍﻟﻘﺸﺮﻳﺔ ﺍﻟﺴﻮﺩﺍء Superfamily Coccoidea Diaspididae Aonidiella aurantii ﺍﻟﺤﺸﺮﺓ ﺍﻟﻘﺸﺮﻳﺔ ﺍﻟﺤﻤﺮﺍء Diaspididae Aonidiella orientalis ﺍﻟﺤﺸﺮﺓ ﺍﻟﻘﺸﺮﻳﺔ ﺍﻟﺸﺮﻗﻴﺔ ﺍﻟﺼﻔﺮﺍء Diaspididae Parlatoria blanchardi ﺣﺸﺮﺓ ﺍﻟﻨﺨﻴﻞ ﺍﻟﻘﺸﺮﻳﺔ Diaspididae Lepidosaphes ulmi ﺣﺸﺮﺓ ﺍﻟﺤﻠﻮﻳﺎﺕ ﺍﻟﻤﺤﺎﺭﻳﺔ Diaspididae Lepidosaphes beckii ﺣﺸﺮﺓ ﺍﻟﻤﻮﺍﻟﺢ ﺍﻷﺭﺟﻮﺍﻧﻴﺔ Cicadidae Cicada sp. ﺣﺸﺮﺓ ﺍﻟﺴﻴﻜﺎﺩﺍ Cicadellidae Empoasca sp. (leafhopper) Psyllidae Diaphorina citri (jumping plant lice) ﺳﻴﻠﻴﺪ ﺍﻟﻤﻮﺍﻟﺢ .