THE CANADIAN KNTOMOLOGIST, 349 



bands on each side covering two longitudinal rows of tubercles ; in the 

 upper row a minute dot appeared in front of each tubercle, and two buff- 

 coloured spots appeared in two upper dark longitudinal bands on the 

 third segment, one on each side of the white line. Thoracic legs black, 

 abdominal legs black, shielded on the outside ; the claws have white and 

 buff-coloured markings ; the abdomen from the last pair of thoracic legs 

 down the ventral surface to the claws has triangular joined markings ; 

 between the claws and abdominal legs are two lateral rows of short bristled 

 tubercles, and between the abdominal and thoracical legs are two more 

 rows. This stage lasted eight days, and three and three-quarters more for 

 moulting. Length, 13 mm. 



Sixth Stage. — Head and first segment as before ; instead of dark 

 longitudinal bands, irregular ovate, reniform and heart-shaped markings 

 appeared on and between each segment ; there were three wedge-shaped 

 markings, one of themjoiningtheother markings, altering their shape some- 

 what, with a wine-coloured surrounding about all these markings, there being 

 two such rows on each side of the white dorsal band, a black line in the suture 

 in front of third last segment and one in the suture above the claws, which 

 are now of an amber colour with firm black Hue on the outer rims of the 

 joints, the abdominal legs similarly marked and coloured, the posterior 

 thickly marked with buff and white ; instead of a dark band above the 

 legs, there were three dots on each segment and above the legs some were 

 single and others joined to resemble a heart form. The predominating 

 colour white as the larva matured. This stage lasted seven and a-half 

 days. Length in twenty-four hours after moulting, 24 mm.; when 

 mature, 39 mm. At noon of the eighth day the larva ceased feeding, 

 after evacuating all the solid food. Towards sundown it picked out a 

 place to gnaw out a hibernaculum in rotten wood ; finding its mandibles 

 too tender for the work, the larva crawled up on the cork of the glass jar 

 and rested for the night ; about 8 a.m. it came down again on the wood to 

 the place it had selected, and began steadily to work with its mandibles 

 to excavate a round hole, and as long as it could the powdered material 

 was raked out with its thoracic legs ; afterwards, as the hole grew deeper, 

 the powdered rotten wood was lifted up with the back of its head and 

 neck by bending these in a liook form ; by i p. m. the hole was complete ; 

 the larva then turned round and commenced to gnaw around the mouth 

 of its hibernaculum, raking some inside, and then afterwards it formed a 

 rim until it was just able to draw in its head, then the powdered wood was 



