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Notes on two West African Hemiptera injurious to Cocoa

Published online by Cambridge University Press:  10 July 2009

Gerald C. Dudgeon
Gerald C. Dudgeon
Affiliation:
Inspector of Agriculture for British West Africa.
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Extract

The insect of which drawings are given here (PI. VIII, figs. 1 & 2) is one belonging to the genus Helopeltis (family Capsidæ), which contains a large number of extremely injurious species. The most important of these at present known is H. theivora, Westw., the “Tea Mosquito Blight” of India, which has rendered very large areas of tea-plantations in Northern India unproductive owing to the puncturing of the immature leaves. H. antonii, Sign., has been the cause of similar destruction to tea, cinchona and cocoa in Ceylon, but in the latter plant the puncturings are upon the pod and exactly similar to those produced, by the species now figured. Dr. Trimen referred to these in ‘Nature,” xxx. p. 634, 1884.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 1 , Issue 1 , April 1910 , pp. 59 - 61
Copyright
Copyright © Cambridge University Press 1910

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References

* Dr. Graham remarks: “Very large numbers of these insects were found on the diseased trees, and not on the healthy ones. They appear to damage the trees by perforating the bark and so producing gumming.’