M.-M. Yang

Eusocial evolution without a nest: kin structure of social aphids forming open colonies on bamboo

The paper compares kin structure and genetic relatedness in eusocial and non-eusocial aphid colonies on bamboo, finding that eusocial colonies are more genetically homogenized, suggesting ecological factors favor eusociality.

Seasonal polyphenism underlies the origin of a sterile caste in aphids

This study shows that seasonal polyphenism in aphids was repurposed to evolve a sterile soldier caste, with shared developmental mechanisms and fitness benefits.

Defensive nymphs in the water-repellent gall of the social aphid Colophina monstrifica (Hemiptera: Aphididae: Eriosomatinae)

The paper describes the induction of galls by the aphid Colophina monstrifica on Zelkova serrata and documents defensive behaviors of nymphs against moth larvae.

Vibrational behavior of psyllids (Hemiptera: Psylloidea): functional morphology and mechanisms

This study identifies the vibrational signal-producing mechanisms in psyllids by testing hypotheses through structural removal and high-speed imaging, concluding that stridulation between specific forewing and thorax structures is the primary mechanism.