Pear-borer {JVepJwpteryx vuhrizonella, KagJ 



( PI. IV. ) 



By 



W. Matsumura. 



There are two species of our pear-borer, Neplioptenjx and tbJK 

 species given above is much larger than the other. In 1889, the smaller 

 species, Nephopteryx sp. was described by Mr. S. Ikeda of the Agricul- 

 tural College of Tokyo, in this zoological Magazine Vol. 1. page 99 ; hut 

 its life history was not known clearly at that time. By this larger-borer 

 our pear growers have been losing every year 30-50^ of their crops, 

 it being a much more troublesome insect than the apple-borer I have 

 described on this late number. 



Entomologically it, belongs to Mirolepidoptera, Group Pyradina, 

 family Phycidae, and its generic and specific name was kindly identified 

 for me by Mr. W. J. Holland of Pittsburg, through the kindness of Mr. 

 O. Howard, the first Entomologist on the department of agricuilture, V . 

 S. A. 



Imago, — Antennae curved over the basal joint, the latte)" with a 

 scaly tuft ; labial palpi compressed with a long end joint ; maxillary palpi 

 small and filiform ; anterior wing with 11 veins, branch 4th and 5th not 

 being stalked ; ground colour varying from grayish brown to grayish 

 black, crossed by two equidistant irregularly sinnuated grayish bordered 

 black lines. Outer margin and basal half much deeper in colour with 

 a black discocellular marking in the middle of the wing. Hindwing dark 

 gray with !-; veins, the branch Hrd, 4tb and .5th spring from a common 

 stalk which rises from a hind angle of the closed mid-cell. 



Thorax is of the same colour as the anterior wing, abdomen much 

 paler ; hind tibia large and compressed with 4 spines. Wing expanse 

 25 mm., body length 12 mm ; two brood in a year, first middle ^\\\y, 

 second late September to early October. 



