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Tymoviruses are spread by chrysomelid beetles . The caterpillar of Weidemeyer 's admiral butterfly ( Basilarchia weidemeyerii ) prefers aspen as a host plant , as do chrysomelid leaf beetles . A chrysomelid beetle , Gonioctena tredecimmaculata , has been shipped from China and is currently being evaluated as a biological control agent of kudzu in the quarantine facility in Newark , Delaware . 1 ) The feeding activities of chrysomelid beetles on selected plant families are being recorded and added to a data base on species richness , biogeographic range and host plant associations . Characterize and develop new tactics to manage chrysomelid leaf beeetles , particularly Colorado potato beetle and corn rootworms , and in labratory , semi-field and field experiments , evaluate various methods of deployment , such as primary toxicants or pathogens , habitat augmentation , conservation biocontrol , baits or other attracticidal formulations , or incorporation in crop or trap plants . Since the collecting localities covered all parts of the State and were often visited more than once , a fair representation of chrysomelid beetles from Alabama 's various faunal zones is believed to have been obtained . The bean leaf beetle ( BLB ) Cerotoma trifurcata ( Forster ) is a chrysomelid leaf beetle that varies in color from golden brown to green , generally has 4 black spots on the wing covers , and always has a black triangle on the area centrally behind the thorax . Investigate , develop and evaluate the use of predators , parasitoids , entomopathogens , feeding stimulants or deterrents , cultural controls , host resistance , and other environmentally - friendly tactics in IPM programs for Colorado potato beetle , corn rootworm and other chrysomelid pests . Insect Biocontrol Lab is also using the colony for development of molecular markers in field and lab behavior and ecology studies under the project # 1275-22000-235-00D , Biorational technologies for management of chrysomelid beetle pests of agricultural crops . My Master 's thesis described the biology and attraction of the striped cucumber beetle to various chemicals that show promise as a method for monitoring and control of populations of this and other pest chrysomelid beetles . In June 2004 , a peculiar entomophthoralean species was found on larvae as well as adults of a chrysomelid species ( Coleoptera ) in Poland ( collaboration with Cezary TKACZUK , Department of Plant Protection , University of Podlasie , Siedlce , Poland ) . The bean leaf beetle is a chrysomelid leaf beetle that varies in color from golden brown to green , generally has 4 black spots on the wing covers , and always has a black triangle on the scutellum ( area centrally behind the thorax ) . Kung hunter uses , among many other non-species-typical means and methods , arrows that are tipped with a poison found on only one local species of chrysomelid beetle , toxic only during the larval stage ( Lee 1993 ) . Despite the inauspicious beginning , we've managed to merge our mutual interests - - his area of specialization is in animation - - with several joint publications ( e.g ., " Insects in animated films , or , not all bugs are bunnies " ) and , in 1990 , with a beautiful , wonderful daughter , Hannah , who is not only a six-year-old authority on animation studios ( " Bugs Bunny is Warner Brothers , Fred Flintstone is Hanna Barbera " ) but also on the taxonomy of chrysomelid beetles ( I 'm told she indignantly informed her preschool teacher , " that 's not a ladybug , it 's a bean leaf beetle ! 4 ) chrysomelid beetle species and their parasitoids are being screened for the rickettsia , Wolbachia . We studied the peformance of Galerucella calmariensis , a chrysomelid beetle , on three different North American populations of Lythrum salicaria .