448 ENTOMOLOGICAL NEWS [Dec., 'lO 



distinguishable. Head small, flat, cara-like with a black en- 

 circling line. Upper lobes of head yellow-brown. Between 

 the 5th and 6th abdominal segments a cross band of light red- 

 dish-brown is back of a middorsal spine-like tubercle over the 

 5th segment in place of the wart of other Catocala larvae. 

 There is a lateral row of short setae. True and prolegs, body 

 color. This larva is much like that of C. paranympha of 

 Europe. The general body color is a peculiar dead-wood brown 

 and recalls the prunescence on Catocala pupae. The under- 

 side of the body is a beautiful purple with the mid-ventral 

 row of black spots. 



A second ultronia larva, taken between shingles on the 

 8th of June was one and three eighths inches long, mouse color 

 with a somewhat lighter face bounded by an intensely black 

 encircling line of dashes united above. The upper lobes of 

 the head were colored as the body. The fifth abdominal seg- 

 ment was lighter, subdorsally. Tubercles dark, almost black 

 with brown tips. The cross band over the 5th and 6th ab- 

 dominal segments hardly distinguishable from the rest of the 

 body but with a slight orange or red shade. The middorsal 

 tubercle over the 5th abdominal segment, brown with a red- 

 dish tinge, long and spine-like. A strong black line behind thj 

 pair of tubercles on the 8th abdominal segment. 



On the 1 3th of June another larva of ultronia was taken 

 between shingles. 



The first of these three caterpillars began spinning on the 

 7th of June, and the imago emerged on the 3d of July, the 

 second imago on the 8th of July and the third on the loth of 

 the same month. It appears that the length of the pupal stage 

 is about twenty two days. Among the three imagoes, there 

 was considerable diversity of color. 



A larva of Catocala arnica, found on bur oak by the junior 

 author on June 8th was five eighths of an inch long, light-lead, 

 almost silver color. True and prolegs white. Head slightly 

 darker than the body color. Tubercles like small black dots. 

 June Qth, this larva moulted. Was about five eighths of an 



