316 MAINE AGRICULTURAL EXPERIMENT STATION. 1908. 



pillars, and the notes on parasites, the description of the egg, 

 and several other observations in regard to the life cycle, sea- 

 sonal history, and habits have not been previously published. 

 In fact from an economic standpoint this species has never 

 demanded consideration * before this present outbreak and 

 except for careful descriptions very little attention has been 

 given it. It is included in Packard's Forest Insects in two places 

 (in both incorrectly determined). This season, however, the 

 attack has occurred seriously in Vermont, New Hampshire, and 

 New York, at least, besides this State; and doubtless much data 

 of interest will come to light over so extended an area. 



DESCRIPTION OF THE SADDLED PROMINENT. 



The descriptions which follow are made entirely from speci- 

 mens bred in Maine during this present outbreak. They are, 

 however, written with reference to the descriptions of Doctor 

 Packard whose diction is used wherever convenient. 



Moth, female. Ground color olive-greenish ashen with cream white 

 patches and black markings. Fore wings with a marginal black line 

 broken at the veins by a pale dot. The marginal fringe is ashen with 

 darker lines extending from the region of the veins giving the wings a 

 border of shallow scallops. There is a submarginal series of 6 to 8 dark 

 spots. Discal mark a curved dark line inclosed in a lunate pale space. 

 In some specimens this pale space extends beyond the median dark zig- 

 zag line far enor.gh to enclose the row of submarginal dots. The body 

 is 20 mm. long and the wings expand 40-52 mm. Figure 24 gives the 

 female actual size and presents a better general idea of the markings than 

 a detailed description. 



Moth, male. Ground color of both wings darker than with the female, 

 and the markings are less distinctive. Figure 23 was photographed from 

 a particularly dark individual. The body is 20 mm. long and the wings 

 expand 40-45 mm. 



Both sexes are variable in markings. 



* H. guttiritia was included in a list of 356 apple insects by Lintner 

 (X. Y. State Ent. nth Rep't, p 265) and an interesting portion of his 

 introductory statement seems, in light of this present outbreak, to sound 

 a note of prophecy: "It is hardly necessary to state that not all the 

 species herein recorded are to be regarded as specially injurious to the 

 apple tree and its fruit but as each one is known to make it, at times, its 

 food plant from choice (many others will feed upon it in confinement) 

 the least harmful among them may at any time, through such sudden and 

 inexplicable multiplication as is often witnessed in the insect world, 

 become a serious pest." 



