72 



To this Dr. Eiley adds: 



"When compared with other closely allied and resembling species, 

 this little moth may be characterized in the following manner: 

 The ground color of the front wing is decidedly bright and pale; 

 the discal spots are almost always confluent, thus forming an ab- 

 breviated transverse bar; the dark markings are well defined, and 

 the triangular dark costal spot starting from the inner third of 

 the wing is distinctly relieved, while the 'brick-red' (nearer a cin- 

 namon-brown) triangular spot which opposes it is large, so that 

 the space it occupies on the inner margin is nearly as wide (gen- 

 erally within one third) as that between it and the transverse 

 posterior line. The lower half of the basal space is often of a 

 distinct cinnamon-brown, and an oblique dusky band, which Mr. 

 Walsh has not mentioned, is often quite distinct, running from 

 near the apex to the brown triangle, where it connects with the 

 inner margin."* 



DISTRIBUTION. 



This insect seems to be very generally distributed throughout 

 Illinois and adjacent states. During the past season I have found 

 it more or less abundant in the following counties of this State: 

 Champaign, Crawford, Edwards, Effingham, Jackson, Marion, Mad- 

 ison, McHenry, McLean, Monroe, Montgomery, Perry, Eandolph, 

 Shelby, Stephenson, St. Clair, Union, and Wabash. In 1885 Pro- 

 fessor Gar man found it common in orchards at Mt. Pulaski, in 

 Logan county, and the year previous the larvae were collected at 

 Du Quoin, in Perry county. 



In the states adjacent to Illinois this pest seems to have a wide 

 distribution. In the article from the Fourth Keport of the State 

 Entomologist of Missouri, quoted above. Dr. Eiley writes that it 

 "occurs throughout our own State and is quite injurious in the 

 southwestern counties." In Tennessee, as I am informed by 

 Mr. E. W. Doran, Entomologist to the Board of Agriculture of 

 that State, it is "plentiful in most orchards" that he has examined; 

 and Prof. F. H. Snow, of Lawrence, Kansas, writes that it is 

 quite a common nuisance in his state. In Iowa it has long been 

 known, though Prof. Herbert Osborn, of Ames, informs me in a 

 recent letter that it "seems much less abundant than in the past." 

 He adds: "While a common pest, it has never, to my knowledge, 

 caused any widespread destruction in this State." 



In the writings of Walsh and others, noted above under the head 

 of Literature, it is stated that the species did not at that time 

 occur either in Southern Illinois or New England. It seems, 

 however, to have spread rapidly since, for it is now common in 

 the first-named region, and, as I am informed by Prof. C. H» 

 Fernald, occurs throughout New England. Is it not possible that 

 it was merely overlooked twenty years ago? 



* \ih \To Hop., p. n. 



