THE INSECTS OF JUNE. 205 



tiful, slender, agile, deep blue moth, with transparent wings, 

 flies the last of the month about currant bushes, and its chrysa- 

 lids may be found in May in the stems. Among moths, that of 

 the American Tent caterpillar flies during the last of June and 

 July, and its white cocoons can be detected under bark, and in 

 sheltered parts of fences and out-houses. 



Among others of the interesting group of Silk worms (Bomby- 

 cida3) are Lithosa, Crocota and allies, which fly in the day-time, 

 and the different species of Arctia, and the white Arctians, Spilo- 

 soma, and Leucarctia, the parent of the Salt-marsh Caterpillar. 



Many Leaf rollers, Tortrices, are rolling up leaves in various 

 ways for their habitations, and to conceal them from too prying 

 birds ; and hosts of young Tineans are now mining leaves, and 

 excavating the interior of seeds and various fruits. Grape- 

 growers should guard against the attacks of a species of Tor- 

 trix (Penthina vitivorana) which rolls the leaves of the grape, 

 and, according to Mr. M. C. Reed, of Hudson, 

 Ohio, "in mid-summer deposits its eggs in the 

 grape ; a single egg in a grape. Its presence is 

 soon indicated by a reddish color on that side 

 of the yet green grape, and on opening it, the 

 winding channel opened by the larva in the pulp 

 is seen, and the minute worm, which is white, 

 with a dark head, is found at the end of th'e 

 channel. It continues to feed upon the pulp of the fruit, and 

 when it reaches the seeds, eats out their interior; and if the 

 supply from one grape is extinguished before its growth is com- 

 pleted, it fastens this to an adjoining grape with a web, and 

 burrows into it. It finally grows to about one-half of an inch 

 in length, becomes brown, almost black, the head retaining its 

 cinnamon color. When it leaves the grape it is very active, and 

 has the power of letting itself down by a thread of silk. All my 

 efforts to obtain the cocoons failed until I placed fresh grape 

 leaves in the jar containing the grapes. The larvaa immedi- 

 ately betook themselves to these, and, cutting a curved line 

 through the leaf thus ), sometimes two lines thus ( ), folded 

 the edge or edges over, and in the fold assumed the chrysalis 

 form. From specimens saved, I shall hope to obtain the perfect 

 insect this season, and perhaps obtain information which will 

 aid in checking its increase. Already it is so abundant that 

 it is necessary to examine every branch of rioe grapes, and clip 

 18 



