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Studies on Insects bred from Barley, Wheat, Maize and Oats

Published online by Cambridge University Press:  10 July 2009

F. D. Goodliffe
F. D. Goodliffe
Affiliation:
Lord Wandsworth College, Long Sutton, Basingstoke.
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Extract

Larvae of a flea-beetle, Chaetocnema arida, were found mining in the stems of young barley shoots in June 1939.

Chlorops pumilionis larvae infested barley most heavily in fields where Agriotes larvae were doing most damage. The Chlorops adults showed marked sexual dimorphism in both size and colour. The size range for this species is correlated with a proportionate size range in its parasites Coelinius niger and Stenomalus micans. Perforations 1·3 mm. in diameter in the top of a cage were sufficient for the escape of Stenomalus but not of Chlorops or Coelinius.

Lasiosina cinctipes larvae were commonly synoecious with Chlorops in barley shoots, but in some cases (5–10 per cent.) they were living without Chlorops. In these shoots the nodes were not swollen as in Chlorops infestation. Lasiosina was not attacked by the above parasites of Chlorops.

The larvae of Elachiptera cornuta infested shoots already badly damaged by other species and were accompanied by many Lasiosina larvae. Wet weather in July favours these two species. Their puparia differ in the form of the posterior spiracles. Elachiptera also occurred in maize and wheat.

Meromyza saltatrix var. nigriventris was present in stunted barley shoots in small numbers, producing swelling of the nodes very like that due to Chlorops. The summer pigmentation in both these species in Hampshire differed from that reported by Mesnil in France. Meromyza was also bred from wheat. Meromyza puparia, unlike those of Chlorops, were attached to barley sheathing-leaves by silk.

Oscinella frit larvae, infesting young sweet maize shoots at Gosden, Surrey, were either accompanied or followed by those of Aphanotrigonum trilineatum and Elachiptera. Infesting oat shoots at Long Sutton, Hampshire, Oscinella frit larvae were accompanied by larvae of Lasiosina and Camarota curvinervis. Adults of the latter emerged from stunted barley shoots in September. They showed some resemblance to flea beetles, possibly protective. Oscinella frit was also bred in small numbers from stunted wheat and barley shoots. The Chalcid, Callitula pyrrhogaster, was reared from pupae of this species found in oat shoots.

Larvae of a Muscid, Hylemyia (Phorbia) genitalis, infested a winter wheat crop in large numbers in May 1940. Tropidoscinis albipalpis, Oscinella? gracilior and Agromyza nigripes, were bred in small numbers from potted plants of this crop kept in a cage in the laboratory during the summer. Hylemyia genitalis and Agromyza (Domomyza) ambigua pupated in the soil surrounding the roots of these plants. The adults (together with a Braconxd parasite, Phaenocarpa pullata, Hal.) emerged from the soil in the following spring.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 32 , Issue 4 , January 1942 , pp. 309 - 325
Copyright
Copyright © Cambridge University Press 1942

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References

Balachowsky, A. & Mesnil, L. (1935–1936). Les insectes nuisibles aux plantes cultivées. Paris.Google Scholar
Borradaile, L. A. (1923). The animal and its environment, pp. 112–116. London.Google Scholar
British Colour Council. (1938). Horticultural Colour Chart.Google Scholar
Drenowsky, A. K. (1923). Lasiosina cinctipes, Mg. (Dipt.) die Gerstenfliege, ihre Schäden und Bekämpfung in der Umgegend von Sofia, Bulgarien.—Z. wiss. InsektBiol. 18, pp. 284–289.Google Scholar
Duda, O. (1932–1933). In Lindner, E.Die Fliegen der palaearktischen Region, 61, pp. 1–248. Stuttgart.Google Scholar
Frew, J. G. H. (1923). On the larval anatomy of the gout fly of barley (Chlorops taeniopus, Meig.) and two related acalyptrate Muscids, with notes on their winter host-plants.—Proc. Zool. Soc. Lond., no. 52, pp. 783–821.CrossRefGoogle Scholar
Goodliffe, F. D. (1939). A joint infestation of barley by Lasiosina cinctipes Mg., together with Chlorops taeniopus Mg. (Dipt. Chloropidae) and their Hymenopterous parasites.—J. Soc. Brit. Ent., 1 pp. 248–252.Google Scholar
Karl, O.(1928). Die Tierwelt Deutschlands. Zweiflügler oder Diptera, III. Muscidae, pp. 181–182. Jena.Google Scholar
Kearns, H. G. H. (1931). The larval and pupal anatomy of Stenomalus micans O1. (Pteromalidae).—Parasitology, 23, pp. 380–395.CrossRefGoogle Scholar
Newton, H. C. F. (1929). Observations on the biology of some flea beetles of economic importance.—J. S.-E. Agric. Coll. Wye, no. 26, pp. 145–164.Google Scholar
Ministry Of Agriculture And Fisheries, London. (1933). Advisory Leaflet 174.Google Scholar
Roos, K. (1937). Untersuchungen über die Fritfliege (Oscinella frit L.) und ihr Auftreten in verschiedenen Höhenlagen der Schweiz.—Landw. Jb. Schweiz 51, pp. 584–666.Google Scholar
Séguy, E. (1934). Faune de France, 28. Diptères Brachycères: Muscidae Acalypterae et Scatophagidae, pp. 742, 751, 761. Paris.Google Scholar
Smith, K. (1931). A textbook of agricultural entomology, pp. 223–224. Cambridge.Google Scholar
Snedecor, G. W. (1938). Statistical methods. Ames, Iowa.Google Scholar
Warburton, C. (1922). Annual report for 1922 of the zoologist.—J. R. Agric. Soc., 83, pp. 253–260.Google Scholar