110 



Kansas Academy of Science. 



No. 2. Paris 



per 1000. 



Potassium 0192 



Sodium 0386 



Lithium Trace. 



Calcium 5215 



Magnesium 0947 



Alumina 0104 



Iron Trace. 



Sulphuric acid (SO4) 1.6546 



Chlorine 0595 



Boric acid Trace. 



Silica 0143 



No carbonates present. 



NOTES ON THE EAKLY STAGES OF THEEE MOTHS. 



BY C. L. MARLATT, STATE AGRICULTURAL COLLEGE, MANHATTAN, KANSAS. 



NERICE BIDENTATA WALKER. 



a, moth; 6, larva; c, pupa; d, pupa-case of folded leaf; e, the egg, enlarged, with outline of the sur- 

 face pattern, much magnified. Excepting e, the figures are of the size of nature. 



Eight or ten nearly full-grown peculiar saw-backed larvfe, which proved to be of 

 the above-named moth, were collected on young elm-shoots growing in the College 

 grounds, September 13, 1887. A number of whitish, hemispherical eggs with irreg- 

 ular openings at the apex through which the larvae had escaped, were found on or 

 near the eaten leaves, attached singly to the upper surface of the leaf. 



Cocoons of stout, brownish silk were constructed by the larvae shortly after col- 

 lection (Sept. 14-21) in folded leaves, or under some slight protection at the surface 

 of the soil, concealed by particles of earth. 



A considerable time elapsed before the pupal stage was assumed. 



Moths appeared May to June, and deposited eggs in the breeding-cage exactly 

 similar to those found on the leaves the previous September. The eggs failed to 

 hatch, much to my regret, and the early larval changes cannot be given. It is safe 

 to assume, however, that this moth is double-brooded — the moths from which my 

 specimens were obtained probably appearing about the first of August. 



I have failed to find any reference to the early stages of this insect in the ento- 

 mological works at my command, and the following descriptions of early stages are 

 given in the belief that they have not hitherto been recorded: 



Eqg: .9x.55 mm. Shape, hemispherical, with a broad flattened base, irregularly 

 encircled by a whitish cement, fastening it to the leaf. Surface shining, apparently 

 smooth, but when highly magnified is found to be covered with raised lines inclos- 



