REPORT OF THE STATE ENTOMOLOGIST 347 



from the spaces between the bosses are slender, short, very minute hairs, 

 originating from a swollen base. Under a one-fifth objective, as well as 

 a one-half and a triplet, I can not di'^tinguish between the microscopic 

 structure and markings of imperialis and fegaiis. 



Just before hatchmg the eggs are yellowish with reddish spots or clouds 



maculating their circumference. 



Description of the larval stages. You fig larva. The newly 

 emerged larva measures \ inch in length. The head is red, round and 

 smooth. Body of a dull red color, armed, except on the last two seg- 

 ments, with six rows of bristle-tii)ped spines : the subdorsal spines on the 

 second and third segments are nearly one third the length of the body, 

 black, rugose, bifurcated, each prong tipped with a white acute bristle ; 

 on the top of the nth segment is a similar spine resting on a red, conical 

 tubercle. The segments are annulated with three fuscous bands termi- 

 nating laterally at the stigmatal flexure, of which one precedes, and two 

 follow the spines : the terminal segment declines considerably from the 

 plane of the others. Legs, black ; prolegs, red. 



First molt. Length of larva v, inch. Head glossy, ferruginous, fus- 

 cus at the clyi)eus and about the eyes. Collar and terminal segments, 

 ferruginous. The segments are testaceous centrally, shading into an 

 obscure red at the incisures, the transverse bands which had previously 

 marked them having disappeared. The spines are glossy black with 

 branches tipped with white acute bristles ; the two long spines of the 

 second and third segments each and the medial one of the i ith, which are 

 about one fifth the length of the body, are directed slightly forward ; 

 their two forks are of unequal size ; the last mentioned spine is in addition 

 to the six of the preceding segments, and ranges with the four substig- 

 matal and lateral s[)ines, the two subdorsal being placed farther back on 

 the segment: the terminal segment has 13 spines, viz, six occupying the 

 usual position, a seventh medial one behmd the range of the preceding, 

 four on the anal shield, of which the two anterior are the larger (four 

 others are indicated by acute granulations on the posterior margin), and 

 a small one on each terminal leg exteriorly. The stigmata are broadly 

 elliptic, fuscous, and situated on a distinct, elliptic, testaceous spot. 

 Legs and prolegs testaceous, marked outwardly with fuscous. 



Second molt. July 17. Length, ^^ inch. Lumediately succeeding 

 the molt the head is pale red, and the long spines before noticed, now 

 appearing as horns, are pearly white. 



Three days thereafter, the larva measures ^^^ inch in length. The 

 head is dull ferruginous, with fuscous centrally and laterally. The body 



