THE CANADIAN ENTOMOLOGIST. 67 



on the segments and minutely mottled with pale. A very broad, dis- 

 tinct, white stigmatal line, enclosing the black spiracles and shaded 

 faintly on each segment with pink and yellow, passing very narrowly 

 on to anal foot. On joint 12, on the anterior part of the hump, a dark 

 brown subdorsal shade, defined on its posterior side, diffuse before. 

 There are traces of dorsal, subdorsal and lateral whitish lines. Found 

 on maple and wild cherry. 



Larvae from Yosemite, California. 



Forms a firm cell in the ground without silk. 



Xylina oregojiensis, Harvey. 



Head moderately bilobed, smooth, shining green, mottled obscurely 

 with yellowish-green ; mouth parts pale, whitish ; jaws dark ; ocelli 

 brown; width, 3.7 mm. Joint 12 not enlarged; joint 13 small. Lustre- 

 less yellowish-green, closely covered with little, short, irregular yellow 

 hnes, resembling mottlings. Narrow, broken, almost dotted dorsal, sub- 

 dorsal and stigmatal lines, the latter passing obscurely on to anal foot. 

 Lines of equal width and much resembling the mottlings. Spiracles 

 small, white with narrow black edge. Piliferous dots distinct, white, 

 each with a single, short, pale seta. Tips of abdominal feet pale. Later 

 in the stage the markings become more distinct, the stigmatal line pale 

 yellow, spotted with red. 



Food plant. — Oak ( Quercus Kelloggii). 



Determined by Prof. Smith from two crippled specimens. 

 Xyhmiges perlubetis, Grote. 



Egg. — Spheroidal, flattened, closely reticulated, the depressions between 

 forming vertical rows, at the micropyle forming a radiating circular row 

 of smaller cells. There are about 40 rows around the egg. Colour, sordid, 

 pearly white, not shining ; diameter 0.7 mm. Laid in a mass, two layers 

 deep, on the back of a leaf. 



First stage. — Head pale testaceous, shining ; mouth brownish, eyes 

 black; width, 0.3 mm. Body pale whitish, subtranslucent, with large 

 black piliferous dots. Only the last three pairs of abdominal feet are 

 distinct, and the larvje " loop " about very actively. 



Second stage. — Head pale whitish testaceous, densely spotted with 

 black ; mouth brown; width, 0.5 mm. Body pale, soft green, joint 12 en- 

 larged, the two anterior pair of abdominal feet smaller than the rest. 

 Piliferous dots large, black. A broad, evident, white stigmatal line, 

 besides narrower dorsal, subdorsal and lateral ones. Setae black. 



