TY  - JOUR 
T1  - Morphological studies on castes of Protopolybia chartergoides (Hymenoptera, Vespidae, Epiponini) observed in colonies during male production stage
JO  - Revista Brasileira de Entomologia
A1  - Felippotti, Giovanna Tocchini
A1  - Noll, Fernando Barbosa
A1  - Mateus, Sidnei
SN  - 0085-5626
UL  - 10.1590/S0085-56262007000400015
VL  - 51 
Y1  - 2007
PB  - Brazil 
ER  -