Micro-hymenoptera
Guides
Neorileya
Neorileya is a genus of minute parasitoid wasps in the family Eurytomidae, subfamily Rileyinae. These micro-Hymenoptera are egg parasitoids of true bugs (Hemiptera), with documented hosts in Coreidae, Pentatomidae, and Reduviidae. The genus contains at least seven described species distributed across the New World from central California to Argentina. Neorileya species develop as endoparasitoids within host eggs, with some species causing significant mortality in agricultural pest populations.
Rileyinae
Rileyinae is a subfamily of small wasps within Eurytomidae (Chalcidoidea), comprising parasitoids primarily associated with insect eggs and gall-formers. Members include the genus Neorileya, known as endoparasitoids of eggs from diverse Hemipteran families (Coreidae, Pentatomidae, Reduviidae) and even Tettigoniidae. The subfamily also includes Gatesina, a genus that parasitizes Eurytominae gall-formers in fruits of Myrtaceae. Rileyinae species are typically minute (2-3 mm), solitary, and part of the 'micro-Hymenoptera' fauna.
Trissolcus brochymenae
Trissolcus brochymenae is a tiny parasitoid wasp in the family Scelionidae, known primarily as an egg parasitoid of stink bugs (Pentatomidae). The species has been documented parasitizing eggs of the rough stink bug genus Brochymena in North America, and has been studied for its responses to host semiochemicals and plant surface chemistry. Research indicates that its foraging behavior is influenced by synomones adsorbed onto leaf epicuticular waxes, with chemical cues from host feeding and oviposition activity playing critical roles in host location and recognition.