Agromyzidae (Diptera) of Economic Importance (Series by K.A. Spencer

By K.A. Spencer

The unique stimulus which begun KENNETH SPENCER on a research of the Agro­ myzid flies used to be a call for participation, which he permitted, to translate from the German the monograph on Leaf Miners by way of Professor E. M. HERING. From this built approximately two decades of collaboration till Professor HERING's loss of life in 1967. Dr. SPENCER has himself defined over six hundred new species within the relatives, a lot of which he amassed and reared from identified host vegetation in the course of his huge travels to the entire 5 major continents. principally because of his paintings, the variety of species recognized in Britain has elevated from ninety in 1945 to 313 at the present time. he's hence uniquely certified to write down this e-book concerning the hundred and fifty or so species that are frequently linked to cultivated vegetation. a lot of the taxonomic aspect supplied right here can be of price essentially to experts; yet with assistance from a microscope and the botanical host record (Chapter 2) and the varied illustrations (mostly ready via ANN SPENCER) these in agri­ cultural institutes and in other places should still now be capable to determine nearly all of species came across attacking plants in any a part of the area.

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Extra info for Agromyzidae (Diptera) of Economic Importance (Series Entomologica)

Sample text

Chalcosoma must be treated as a pest of some significance in East Africa. Certainly in seasons during which populations are abnormally large, substantial damage might be expected. Melanagromyza dolichostigma de Meijere, 1922- Java, Formosa ADULT. A small blackish species, with variable metallic colouration. HEAD. Frons narrow, equal to width of eye, not projecting above eye in profile; 2 strong, equal ors, 2 weaker, incurved ori; orbital setulae sparse, reclinate, apart from 1 or 2 hairs in front; ocellar triangle with apex extending to lower ors; lunule slightly higher than a semicircle; eyes bare in both sexes; jowls narrow, about 1/8 height of eye; third antenna!

This varies considerably (VAN DER GOOT, 1930: 75) according to the specific host attacked. On soja hispida plants are normally attacked when ll;bout 3 weeks old and eggs are laid on the third leaf. As long as plants continue their growth prior to blooming and fresh young leaves are available on the main shoot, these are used successively as the site of oviposition by one female after the other. When eggs are laid on young, unfolded leaves, these quickly turn brown and fall. With more mature leaves these withstand the attack longer and generally may fall after a further leaf has developed.

J. & C. Pres! Avena sativa L. Coix Lachryma-Jobi L. Hordeum distichon L. Hordeum hexastichon L. Hordeum vulgare L. 26 Species Agromyza trebinjensis Strobl Agromyza varifrons Coq. Agromyza varifrons Coq. Agromyza aristata Mall. Agromyza aristata Mall. Melanagromyza apii Hering Melanagromyza splendida Frick Liriomyza huidobrensis (Blanchard) Liriomyza trifolii (Burgess) Melanagromyza splendida Frick Liriomyza trifolii (Burgess) Napomyza carotae Spencer Phytomyza ferulae Hering Phytomyza syngenesiae (Hardy) Phytomyza fuscula Zett.

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