104 



MAINE STATE COLLEGE 



Description. 

 Elongate oval, tapering toward the base. Slightly bulging on the 

 side away froni the hair in one specimen, or in the others narrower 

 and more symmetrical. About two and a half times as long as wide. 

 The empty shell hyaline and beautifully sculptured with hexagonal retic- 

 ulations. The hexagons somewhat variable in size and perfectness in 

 different parts of the shell, but average ones about 

 one-twentieth of the width of the shell. The sur- 

 face apparently smooth, the angles of the reticula- 

 tions not beset with points as in the eggs of the 

 Short-nosed ox-louse. Attached to the hair by a 

 cement mass about one-third the length of the egg, 

 as shoAvn in the figure. The cement mass varies in 

 shape, the distance it extends along the hair and the 

 remoteness of the attachment from the root of the 

 hair. The sloping base of the eggs is included more 

 or less in the cement mass, and the eggs stands 

 somewhat obliquely outward from the hair. 



I Below we give measurements of the three eggs 



observed. The figure, drawn to scale by the writer, 

 Fig 4 shows the egg enlarged 40 times. 



Measurements. 



Specimen (a,) length, .863 mm.; width, .38 mm.;width of operculum, 

 .265mm.; from base of hair, 5 mm.; cement mass, .345mm.; hexagonal 

 reticulations of shell, .02 mm. 



Specimen (&,) length, .805 mm.; Avidth, .379.; width of oper- 

 culum, .253 mm.; from base of hair, 5.75 mm.; cement mass, .28S mm. 



Specimen (c,) length, .805 mm.; width, .379 mm.; width of opercu- 

 lum, .265 mm.; from base of hair, 10 mm.; cement mass, .312 mm. 



THE YELLOW WOOLLY-BEAK. 

 Spilosoma Yiryinica (Fabr.) 

 Order. Lepidoptera. Family Arctidae. 



This insect was reported the past season as feeding on raspberry 

 leaves. Though more commonly found on grapes it feeds upon 

 various plants. The eggs are deposited in clusters on the under side 

 of the leaves. 



The young larvae feed in company for a time, but finely separate 

 each going its way. 



When full grown the larva is about two inches long and usually 

 yellow, but sometimes straw color or brown. The segments are 



