Packard.] J-^^ [March 17, 



spine is a transverse row of small whitish warts, and other granulations 

 are scattered over the body. The caterpillar is dark, and a somewhat 

 conspicuous object on an oak leaf. It molted about July 14 or 15. 



Stage 111. — Length, 15 mm. Head light chesiuut ; slightly narrower 

 than the body, which is much as before in color and appearance. The 

 two horns on the second thoracic segment are now much shorter in pro- 

 portion, being one-third longer than the segment is wide, or as long as the 

 second and third thoracic and first abdominal segments taken together. 

 The color of the body is the same, but the white granulations, very 

 unequal in size, are more distinct than before. The spiracles are wholly 

 black, and situated between two indistinct broken white parallel lines. 

 The black dorsal spines on the third thoracic and first abdominal segments 

 are smaller than those on the otiier abdominal segments ; those on the 

 eighth and ninth segments are of the same size and larger than ihose on 

 the other abdominal segments. The suranal plate and anal legs are of the 

 same color as the rest of the body. It molted July 23, having been about 

 seven days in this stage. 



Stage IV. — Length, 21 mm. -Head as before, as wide as the body in the 

 middle. Some new marks now appear ; there is a broad, dorsal, dark, 

 longitudinal band composed of a series of square, dark patches, sprinkled 

 over with thickened white granulations, and a subdorsal band of the 

 same color, composed of oblong, dark patches, bearing a spine above, and 

 on the lower edge the black spiracle, situated on a white field. The skin 

 is of the color of beeswax. There is a median black forked spine on the 

 ninth abdominal segment. The suranal plate is as before, but the tuber- 

 cles are long and slender, rounded at the tip, and porcelain white. Tiie 

 two spines at the end of the suranal plate are tipped with black ; this 

 plate and the anal legs being paler than the body. The horns on the 

 second thoracic segment are now shorter than before, or as long as the 

 third thoracic and first abdominal segments taken together. Tlie other 

 spines are as before, those on abdominal segments 4-8 being larger than 

 those on the three segments in front. 



For comi>arative descriptions of the final stage of this and of A. stigma, 

 by Dr. C. V. Riley, see our Forest and Shade IVee Insects, 125, 127. 



Partial Life History op Anisota stigma (Fabr.). 



For this larva, received September 12, I am indebted to Mr. James 

 Angus, of West Farms, N. Y. 



Stage IV {">.). — Length, 25 mm.; length of second thoracic horns, 10 mm. 

 Head Indian red or dull cherry red. Protlioracic segment with six large 

 stout forked spines, where those of A. virginiensis are small, almost rudi- 

 mentary, and they are larger than in the final stage. Also the porcelain 

 white granulations are ranch larger than in A. virginiensis. The horns on 

 the second thoracic segment are movable and much longer than in the last 

 stage, being nearly twice as long in proportion. The spines on all the 



