22 
CORN AND GRASS. 
Wireworm and Click Beetle. Elater ( Agriotes ) lineatus, Curtis ; 
Elater ( Agriotes ) obscurus, Curtis. 
Agriotes lineatus. 
1 and 2, Elater lineatus; 3 and 4, E. obscurus; 5 and 6, E. sputator, nat. size and 
magnified ; 7, larva of E. sputator; 8 and 9 larva (wireworm) of E. lineatus, 
nat. size and magnified ; 10, pupa (lines show nat. length). 
Tlie following report on Wireworm, from notes contributed in 
reply to a circular issued by the Council of tlie Eoyal Agricultural 
Society, requesting information as to the habits of Wireworms and 
methods of prevention of their ravages, was compiled by myself, as 
Consulting Entomologist of the Society, and published in their 
Journal for 1883, vol. xix., part 1, and is now reprinted by permission 
of the Council. 
For convenience of reference the communications received have 
been divided into paragraphs according to the subjects to which they 
mainly refer, and classed under special headings, the name and 
locality of the contributor being in each case appended to the 
information furnished. The series is thus arranged so as to run on 
continuously from the commencement of remedial measures (in the 
breaking up of pastures or leys), by which egg-laying may he 
prevented or the Wirew T orm killed, to the various methods of treat¬ 
ment of soil, or kinds of crops calculated to prevent or forestall attack, 
and further notes of various kinds of manures and applications 
which have been found to check attack when present. 
It will be observed that two of the points mainly brought forward 
are, the importance of compressing the ground (by methods varying 
according to the nature of the soil and condition of the crop), so that 
the Wireworms may not have free passage in the land; and also 
of maintaining such a vigorous growth as may carry the plant over 
the injury caused by an average attack. 
The past season having been generally favourable to plant growth, 
it has turned out that though Wireworms began to run early in the 
