In order to emphasize patterns of host utilization, only oligophagous
beetles were included as defined above and shown in Table III.
Feeding patterns of monophagous, oligophagous
, and polyphagous insect herbivores: the effect of resource abundance and plant chemistry.
Twelve of the species appear to be monophagous and 3 oligophagous
on 2 or 3 host plant species; 6 species induce pit galls, 8 induce closed nipple or spherical galls, and for 1 species no information is available (Burckhardt & Basset 2000; Burckhardt et al.
The grasshopper Hesperotettix viridis (Thomas) is oligophagous
, feeding on composites (Asteraceae) in the tribe Astereae (Mulkern et al.
Variation in preference and specificity in monophagous and oligophagous
Thematically similar phenomena are described by Topp (for an oligophagous
chrysomelid, which uses the phenolglycoside defensive compounds of its host, willows, to repel insectivorous birds) and Tomaschko (pycnogonids, a phylogenetically ancient lineage of marine arthropods, use ecdysteroi ds partially gathered from food for defense against predator crustaceans).
In 1920, Brues observed that insects were instinctively polyphagous, oligophagous
or monophagous and began to address many of the questions still central to the study of plant-herbivore interactions.
Biological control using oligophagous
Alternatively it may be because in the grasshoppers we studied, there is no progressive feeding specialization during succession: diet is rather uniform, ranging from oligophagous
(mainly Poaceae) or polyphagous (Dicots and Poaceae) (El Ghadraoui et al.
Biology and host-plant relationships of an oligophagous
leaf miner Phytomyza matricariae Hendel (Diptera: Agromyzidae).
Most of the 68 described species are mono- or oligophagous
on species of the Sapindales except for the 2 North American species Calophya dicksoni Jensen developing on Fouquieria columnaris (C.