Similar in appearance to Ceroplastes cirripediformis and C. sinensis with body oval; convex in lateral view; body reddish brown; with a thick wax covering, grayish white in color with a tinge of red; eggs laid in chamber under body of adult; ovisac absent. Test divided into lateral plates with dry wax filaments protruding from the centers of the plates; dorsally with a single plate larger than the rest. Stigmatic wax bands directed dorsally, filamentous wax confined to stigmatic areas. On stems, leaves, branches, and fruit.
Ceroplastes rusci is similar to C. cirripediformis Comstock but differs by having apically acute dorsal setae (capitate in C. cirripediformis), small denticle on claw (absent from C. cirripediformis), and multilocular pores nearly restricted to area around vulva (present on anteriorabdominal segments on C. cirripediformis).
U.S. quarantine notes
This species was intercepted 67 times on a variety of hosts at U. S. ports-of-entry between 1995 and 2012, with specimens originating from Anguilla, Barbados, Costa Rica, Dominican Republic, Ecuador, Germany, Greece, Hawaii, Israel, Italy, Jamaica, Jordon, Lebanon, The Netherlands, Peru, Portugal, Puerto Rico, South Africa, Syrian Arab Republic, and Vietnam. We also have examined specimens taken in quarantine from: Argentina (Ficus); Azores (Annona, Castanea); Dominican Republic (Cocos); Ecuador (Alpinia); France (Ficus, Myrtus); Greece (Ficus, Pistacia); Guyana (Asplundia); Israel (Cyperus, Ficus, Myrtus); Italy (Ficus, Nerium, Vitis); Ivory Coast (Ficus); Jordan (Ficus); Mexico (unknown host); Morocco (Ficus); Palestine (Ficus); Portugal (Ficus, Strelitzia); Puerto Rico (Ficus, Phoenix, Terminalia); Sicily (Ficus); Spain (Ficus); St. Croix (Annona); Uruguay (Ficus); The Virgin Islands (Laurus, Pimenta); Yugoslavia (Ficus). ScaleNet includes hosts in more than 40 families. It is found in all but the Australasian zoogeographic region. One species of Ceroplastes other than C. ceriferus (Fabricius), C. cirripediformis Comstock, C. floridensis Comstock, C. japonicus Green, C. rubens Maskell, C. rusci (Linneaus), C. sinensis Del Guercio and C. stellifer (Westwood) has been intercepted at a U. S. port-of-entry, C. cistudiformis Cockerell (Mexico, on Punica).