TY  - JOUR 
T1  - The taxonomic status of Xyonysius major (Berg) (Hemiptera: Lygaeidae), an occasional pest of sunflower in Brazil
JO  - Anais da Sociedade Entomológica do Brasil
A1  - Schaefer, Carl W.
SN  - 0301-8059
UL  - 10.1590/S0301-80591998000100007
VL  - 27 
Y1  - 1998
PB  - Brasil 
ER  -