42 MARCH. 



found; and on the under side of the leaves of the 

 ground-ivy (Glechoma hederacea) we shall find the 

 larva of Coleophora albitarsella in its black case, 

 making white blotches in the leaves ; while on the 

 Hypericum perforatum the " cigars" of Gracilaria 

 auroijuttella may still be obtained. 



In the decayed wood lying in that moist place we 

 shall find the larva of Daaycera Sulphurella, and 

 probably the larva of the rarer (Ecophora unitella may 

 reward our search. 



Among seeds we may find the larvae of CEcophora 

 pseudospretella and Endrosis fenestrella, while in 

 grains of barley the larva of Gelechia cerealella lies 

 concealed, devouring the fecula: this larva is most 

 destructive in granaries. " In France, this i Tinea' has 

 proved very destructive to corn — wheat, barley and 

 rye being indiscriminately attacked by it. Duponchel, 

 quoting from the Memoirs of Reaumur, Duhamel, 

 Dumonceau and Tillet, on its natural history, informs 

 us that the female lays her eggs on the grains of these 

 three kinds of corn before they are ripe ; six or seven 

 days afterwards, the caterpillars appear, being hardly 

 as thick as a hair, and each one attacks a grain, intro- 

 ducing itself into it by a hole so small, that it is not 

 visible to the naked eye. Here it lives, taking care 

 not to break the husk of the grain, so that the affected 

 seeds cannot be distinguished from the sound, except 

 by putting them into water, when the former swim and 

 the latter sink. When arrived at perfection, the cater- 

 pillar, still within the grain that has afforded it food, 

 spins a cocoon of white silk, having first taken the pre- 

 caution to gnaw one of the ends in such a manner as to 



