Table of Contents. 109 



PAGE. 



Figures of the saw-fly and its larvae and a distorted larch, 168. Severe 

 injuries reported from Pnnce Edward Island, 169. The larches 

 ravaged by it over all the Province, 169. First observed there in 1889, 



169. Hopelessness of contending with the insect when large areas are 

 infested by it, 169. On isolated trees it may be destroyed by arsenical 

 spraying, 169. Elsewhere, attacked trees had better be cut at once and 

 used as timber for which it is desirable, 169 . 



Feniseca Tarquinius, the little Orange Butterfly 169 



Usually rare, but abundant in Keene valley in 1891, 169. Its method 

 of flight, 169. Seldom seen on the ground, 170. Dates of capture in 

 1891, 170. Pupation of the insect. 170. Concealment of the larvae 

 within clusters of Pemphigus tessellata, 170. Indication of their pres- 

 ence there, 170. P. tessellata probably reduced in number by tlie feed- 

 ing of the larvae, 170. Transformations of the insect, 170. 



EuDRYAS GRATA, the Beautiful Wood-nymph 170 



Increase of the insect, 170. Its fondness for the Anipelopsis quin- 

 quefolia, 170. Possibility of its becoming a household pest, 170. Car- 

 pets in Albany injured by the caterpillar in preparing for pupation, 



170. Figures of the caterpillar and of the egg, 170. The moth figured, 

 with remarks on its beauty, 171. Expressiveness of its scientific and 

 popular names. 171. 



SCOLIOPTERYX LIBATRIX, the Scallop-wing 171 



The caterpillar feeding on willow: its description, 171. Structure of 

 its cocoon, 171. Period of its pupation, 171. Early appearance of the 

 moth, 171. Its habits as recorded in England, 172. The moth survives 

 the winter, 173. Is frequently taken in collections "at sugar," 172. 

 Dates of its appearance " at sugar " at Schenectady, N. Y., in 1875 and 

 1876, 173. Time of its greatest abundance, 173. The two broods of 

 June and August, 173. According to Guenee, it has no regular time 

 for emerging from the pupa, 172. The larva said to feed on poplar as 

 well as on willow in Europe, 173. 



ExECHiA species ? , a Fungus Gnat 172 



Interest excited by the large number occurring within doors at 

 Albany, 173. Specimens sent to Europe for determination, 173. Found 

 to be an undescribed species of a genus not hitherto recognized in the 

 United States, 173. The Exechia species feed on mushrooms, 172. 

 Whether they shall be regarded as injurious will depend on the value 

 attaching to mushrooms, 172. Opinion as to their value is divided in 

 Europe, 172 Reference to the species of Exechia occurring in England, 

 173. They often abound on windows of houses in autumn, 172. 



Telephorus ?bilineatus, occurring on snow 173 



MiUions of the larvae on the snow in February, in Herkimer county, 

 N. Y. , 173. Covered the snow for a distance of a half mile, 173. Were 

 seen traveling about for a day or two, 173. Identified as, or very near 



