Stink Bugs (Heteroptera, Pentatomidae) And An Unique Host Plant In The Brazilian Subtropics Author Panizzi, Antônio Ricardo Centro Nacional de Pesquisa de Soja, Empresa Brasileira de Pesquisa Agropecuária, Caixa Postal 231, 86001 - 970, Londrina, PR, Brasil panizzi@cnpso.embrapa.br Author Grazia, Jocélia Departamento de Zoologia, Universidade Federal do Rio Grande do Sul, Av. Paulo Gama s / n, 90046 - 900, Porto Alegre, RS, Brasil jocelia@vortex.ufrgs.br text Iheringia, Sér. Zool. 2001 2001-05-25 90 21 35 journal article 21392 10.1590/S0073-47212001000100003 e3f88e91-d4c7-4ccb-a00c-e84a8fd8abd3 3967344 Piezodorus guildinii . Among the species that occurred in small numbers on privet, the small green stink bug P. guildinii was the most common. However, no nymphs and eggs were recorded, possibly indicating no reproduction. Adults were intercepted in greater numbers during April and May, decreasing thereafter. They were not recovered during late springand summermonths (November-February) ( fig. 7 ). Probably the increase in adult populations during April and May was due to dispersion of bugs from areas where soybean was harvested. In a similar way, bugs were not find on privet during November-February because at that time they were colonizing soybean, one of their preferred hosts. Adults light green to yellowish, with a red-band on the base of pronotum, particularly on females. Pronotum band, on males, brown-yellowish. Body length of females 11.0 mm (n = 10), andof males 9.0 mm (n = 10). Early nymphs reddish-brown, andlater instars yellowish. Eggs blackish, laid in two paralell rows ( GALILEO et al ., 1977 ; GRAZIA et al. , 1980 ). No nymphs and eggs were observed in the field, and when we tried to raise nymphs on privet fruits in the laboratory they all died. Although P. guildinii is a major pest of soybean in South America ( PANIZZI & SLANSKY, 1985 ), and is commonly found feeding and reproducing on wild legumes of the genus Indigofera ( PANIZZI, 1992 ) , it is difficult to maintain a colony of this bug in the laboratory on either of these host plants.