11 Costa Rican species of the forest light-gap grasshopper genus Rhachicreagra were shown by direct observation and by faecal analysis to be each narrow-range disjunct oligophages, eating typically only 3–6 species from the hundreds present in their habitat. The diet of the different species varies considerably, some pairs showing no overlap, others having several species in common.
All Rhachicreagra spp. accepted in captivity any plant found in the diet of any other congeneric species, but refused almost all other plants. There is thus a generic spectrum of acceptable plants. It includes one to several members of each of 7 families: Compositae, Urticaceae, Umbellifereae, Amaranthaceae, Phytolaccaceae, Gramineae and an unidentified monocotyledenous family. Within this range, the diet of any given species or population appears to be determined primarily by availability within the habitat. There is no evidence for the hypothesis that food-plant shifts are directly associated with speciation within the genus.
Compositae are a component of the diet of most species, and include the principal (=most used) foodplant of many, including the morphologically most primitive species. In lowland habitats, Urticaceae supplement or replace the Compositae in the diet, in montane habitats Hydrocotyle (Umbelliferae) is important. Phytolacca and Iresine (Amaranth.) are usually minor constituents of the diet of lowland species, but Iresine is the principal foodplant of Rh. obsidian. The monocotyledenous families appear to be eaten only when other footplants are in short supply. The literature suggests that the dicotyledenous families favoured are listinguished by their relatively high content of nitrogen and cations. They are also variously rich in saponins, flavonoids, alkaloids, polyacetylenes and sesquiterpene lactones.
The present ecological distribution of the genus is wider han that of any single known foodplant, and appears to be made possible by the diversity of the plants accepted; these include species typical of lowland and montane habitats and of drier and wetter climates.
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Amedegnato C, Descamps M (1978) Evolution des populations d'Orthoptères d'Amazonie du nord-ouest dans les cultures traditionelles et les formations secondaires d'origine anthropique. Acrida 9:1–34
Boring LR, Mark CD, Swank WT (1981) Early regeneration of a clear-cut southern appalachian forest. Ecology 62:1244–1253
Brusven MA, Mulkern GB (1960) The use of epidermal characteristics for the identification of plants recovered in fragmentary condition from the crops of grasshoppers. N Dakota Agric Exp Sta res Rept 3:11
Bush GL (1975a) Sympatric speciation in phytophagous parasitic insects. In: Price PW (ed) Evolutionary strategies of parasitic insects and mites. Plenum Press, New York, pp 187–206
Bush GL (1975b) Modes of animal speciation. Ann Rev Ecol System 6:339–364
Campbell J, Arnett H, Lambley J, Jantz O, Knutson H (1974) Grasshoppers (Acrididae) of the Flint Hills native tallgrass prairie in Kansas. Res Pap Agric Exp Sta Kansas St Univ 19:146
Descamps M (1976) Le peuplement acridien d'un périmètre d'Amazonie Columbienne. Ann Soc Entomol Fr (NS) 12:291–318
Dilcher DL (1974) Approaches to the identification of Angiosperm leaf remains. Bot Rev (N.Y.) 40:1–157
Fox LR, Morrow PA (1981) Specialization: species property or local phenomenon? Science 211:887–893
Gangwere SK (1972) Host finding and feeding behaviour in the Orthopteroidea, especially as modified by food availability: a review. Rev Univ Madrid 21:1–158
Gorinsky C, Templeton W, Zaidi SAH (1973) Isolation of ichthyothereol and its acetate from Clibadium sylvestre. Lloydia 36:352–353
Harris P (1971) Host specificity determination of insects for biological control of weeds. Ann Rev Entomol 16:159–178
Hegnauer R (1964) Chemotaxonomie der Pflanzen, 6 vols. Birkhäuser, Basel
Hegnauer R (1971) Chemical patterns and relationships of Umbelliferae. In: Heywood VH (ed) The biology and chemistry of the Umbelliferae. Academic Press, London New York, pp 287–289
Hegnauer R (1982) Phytochemie und Klassifikation der Umbellifereen, eine Neubewertung in Lichte der seit 1972 bekannt gewordenen phytochemischen Tatsachen. In: Actes 2. Symp International sur les Ombelliferes, 1977, Monogr Syst Bot (Missouri) 6:335–364
Hering M (1951) Biology of leaf miners. 's-Gravenhage, Dr. W. Junk
Herrebout WM, Kuitjen PJ, Wiebes JT (1976) Small ermine moths of the genus Yonomeuta and their host relationships (Lepidoptera, Yponomeutidae). Symp Biol Hung 16:91–94
Hummelen P, Gillon Y (1968) Etude de la nourriture des acridiens de la Savane de Lamto en Côte d'Ivoire. Ann Univ Abidjan B 1:199–206
Jago ND (1973) The genesis and nature of the tropical forest and savanna grasshopper faunas, with special reference to Africa. In: Meggers BJ, Ayensu ES, Duckworth WD (eds) Tropical forest ecosystems in Africa and South America: a comparative review, Washington D.C., Smithsonian Institution Press, pp 187–196
Jago ND, Rowell CHF (1981) Rhachicreagra (Acrididae, Ommatolampinae): forest grasshoppers from Central America with unique aedeagal symmetry. Syst Entomol 6:179–212
Kaufmann T (1965) Biological studies of some Bavarian Acrididae (Orthoptera) with special reference to their feeding habits. Ann Entomol Soc Am 58:791–801
Launois MH (1976) Methode d'étude dans la nature du regime alimentaire du criquet migrateur Locusta migratoria capito (Sauss.). Ann Zool Ecol Anim 8:25–32
Montgomery GG (ed) (1978) The ecology of arboreal folivores. Washington D.C., Smithsonian Institution Press. pp 574
Mulkern GB (1972) The effects of preferred foodplants on distribution and numbers of grasshoppers. In: Hemming CF, Taylor THC (eds) Proc Int Study Conf Current and Future Problems of Acridology London 1970. HM Stationery Office, London, pp 215–218
Mulkern GB, Anderson JF (1959) A technique for studying the food habits and preferences of grasshoppers. J Econ Entomol 52:342
Mulkern GB, Anderson J, Brusven M (1962) Biology and ecology of North Dakota grasshoppers. I. Food habits and preferences of grasshoppers associated with alfalfa fields. N Dakota Agric Exp Sta Res Rept 7:26
Mulkern G, Toczek D, Brusven M (1964) Biology and ecology of North Dakota grasshoppers II. Food habits and preferences of grasshoppers associated with the Sand Hills prairie. N Dakota Agric Exp Sta Res Rept 11:59 pp
Mulkern G, Pruess K, Knutson H, Hagen A, Campbell J, Lambley J (1969) Food habits and preferences of grassland grasshoppers of the North Central Great Plains. North Cent Regional Publ No 196, Agric Exp Sta N Dakota Sta Univ pp 32
Ovington JD, Olson JS (1970) Biomass and chemical content of El Verde lower montane rainforest plants. In: Odum HT, Pigeon RF (eds) A tropical rain forest, a study of irradiation and ecology at El Verde, Puerto Rico. U.S. Atomic Energy Commission, Washington DC, pp H53-H78
Rehn JAG (1905) A contribution to the knowledge of the Acrididae (Orthoptera) of Costa Rica. Proc Acad Nat Sci Philadelphia 67:400–454
Rowell CHF (1978) Foodplant specificity in neotropical rain-forest acridids. Entomol Exp Appl 24:651–662
Rowell CHF, Rowell-Rahier M, Braker HJ, Cooper-Driver G, Gómez P LD (1984) The palatability of ferns and the ecology of two tropical grasshoppers. Biotropica 15:207–216
Schroeder D (1983) Biological control of weeds. In: Fletcher WW (ed) Recent advances in weed research. CAB, Slough, pp 41–78
Singer MC (1971) Evolution of foodplant preference in the butterfly Euphydryas editha. Evolution 25:383–389
Singer MC (1983) Determinants of multiple host use by a phytophagous insect population. Evolution 37:389–403
Stebaev IV, Pshenitsyna LB (1978) Food selection of dominant grasshoppers species of the Irtish steppe and water meadows, as devined by the diagnostic method of composition of grasshopper faeces. In: Stebaev IV (ed) On question of ecology University Press, Novosibirsk, pp 18–59 (In Russian)
Swain T, Williams CA (1977) Heliantheae—chemical review. In: Heywood VH, Harbourne JB, Turner BL (eds) The biology and chemistry of the Compositae. Academic Press, London New York, pp 673–698
Tanner EVJ (1977) Four montane rainforests of Jamaica: a quantitative characterization of the floristics, the soils and the foliar mineral levels, and a discussion of the interrelations. J Ecol 65:883–918
Walsh BD (1864) On phytophagic varieties and phytophagous species. Proc Entomol Soc Philadelphia 3:403–430
Zwoelfer H (1970) Der “regionale Futterpflanzenwechsel” bei phytophagen Insekten als evolutionäres Problem. Z angew Entomol 65:233–239
Zwoelfer H (1983) Life systems and strategies of resource exploitation in Tephritids. In: Cavollaro R (ed) Fruitflies of economic importance. Proc CEC/IOBC Int Symp Athens, Greece, 16–19 Nov 1982, Balkena, Rotterdam, pp 16–30
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Rowell, C.H.F. The feeding biology of a species-rich genus of rainforest grasshoppers (Rhachicreagra: Orthoptera, Acrididae). Oecologia 68, 87–98 (1985). https://doi.org/10.1007/BF00379479