105-107
Research article
Relationships between the ant Brachymyrmex obscurior (Hymenoptera, Formicidae) and Acacia pennatula (Fabaceae)
G. Moya-Raygoza
108-113
Research article
Food availability and brood number do not influence intraspecific aggression in Argentine ants
M. L. Thomas, A. Dixson, V. Coggins and D. A. Holway
114-121
Research article
How queen and workers share in male production in the stingless bee Melipona subnitida Ducke (Apidae, Meliponini)
D. Koedam, F. A. L. Contrera, A. de O. Fidalgo and V. L. Imperatriz-Fonseca
122-131
Research article
Ultrastructural characterization of spermatozoa in euglossine bees (Hymenoptera, Apidae, Apinae)
U. Zama, J. Lino-Neto, S. M. Mello, L. A. O. Campos and H. Dolder
132-138
Research article
Soldier caste with morphological and reproductive division in the aphid tribe Nipponaphidini
T. Fukatsu, A. Sarjiya and H. Shibao
139-146
Research article
The influence of marking upon bee behaviour in circle tube experiments with a methodological comparison among studies
L. Packer
147-154
Research article
Effect of group size on the aggression strategy of an extirpating stingless bee, Trigona spinipes
J. C. Nieh, K. Kruizinga, L. S. Barreto, F. A. L. Contrera and V. L. Imperatriz-Fonseca
155-162
Research article
Facultative sexual reproduction in the parthenogenetic ant Platythyrea punctata
A. Hartmann, J. Wantia and J. Heinze
163-168
Research article
A genetic component in the determination of worker polymorphism in the Florida harvester ant Pogonomyrmex badius
F. E. Rheindt, C. P. Strehl and J. Gadau
169-176
Research article
The triple alliance: how a plant-ant, living in an ant-plant, acquires the third partner, a scale insect
J. Moog, L. G. Saw, R. Hashim and U. Maschwitz
177-185
Research article
Comparative analysis of caste differentiation during embryogenesis of social aphids whose soldier castes evolved independently
N. Ijichi, H. Shibao, T. Miura, T. Matsumoto and T. Fukatsu
186-193
Research article
Queen size dimorphism in the ant Tetramorium moravicum (Hymenoptera, Formicidae): Morphometric, molecular genetic and experimental evidence
B. C. Schlick-Steiner, F. M. Steiner, M. Sanetra, G. Heller and C. Stauffer, et al.
194-200
Research article
Facultative polygyny in Ectatomma tuberculatum (Formicidae, Ectatomminae)
R. R. Hora, E. Vilela, R. Fénéron, A. Pezon and D. Fresneau, et al.
201-203
Technical note
A simple design for a rain-resistant pitfall trap
S. D. Porter
204
Erratum
Erratum
No author