242 Journal New York Entomological Society. [vol. vi. 



back and sides, lateral one projecting, smooth, neither ever spinose. 

 Setae of stage I, as in Tortricidia pallida, differing only in detail. 

 Later the warts are represented by distinct short setae which diminish 

 nearly to obliteration during ontogeny. Depressed spaces well devel- 

 oped, fairly large, (i) to (8) present. Skin at first smooth, later 

 covered with round, clear granules, each with a minute central spine 

 and crown of four to eight around it, causing the skin to appear mi- 

 nutely furry. The granules appear well formed first on the ridges, 

 later spreading more evenly over the body. The fur-like spines be- 

 come smaller at each subsequent molt till in the last stage they are ab- 

 sent, leaving the granules perfectly smooth. Coloration green with 

 yellow lines and a small red mark. There are six larval stages. 



Affinities, Habits, Etc.* 



Allied to Tortricidia pallida and Ifeteroge?iea flexuosa. Stage I 

 is most like flexuosa, but the Y-shaped setae are distinctly alternating, 

 as in pallida, or more so, and there is a brown cervical shield. In 

 stage II the setae persist as in pallida, but the granulation is at once 

 distinguished from either by the peculiar fur on the ridges, which 

 passes less perfectly into the spaces. The ridges are prominent and 

 distinc tlysegmentarily beaded as in neither of the allies. Later, owing 

 to the diminution of the fur and the small size of the red mark, the 

 larva resembles most flexuosa, and may be distinguished from some 

 forms of that species only by the yellow collar. It is less strongly 

 pigmented, a clearer, less yellowish-green, while the pattern of color- 

 ation is much less extended, though essentially the same as in both al- 

 lies. The transverse yellow line on joint 3, or collar, is present in 

 this species only. The depressed spaces are yellow, as in flexuosa. 



The moths emerge somewhat later than those of the allied species, 

 during the first weeks in July. The larvae have the same habits and 

 occur in the same situations as flexuosa, but show a more marked pref- 



* The nearest ally of our H. shurtleffii will doubtless prove to be the European 

 H. cruciata. The moths are strictly congeneric, whereas H. flexuosa and its variety 

 azsonia do not belong to Heterogenea or to Lithacodes, but properly to Tortricidia. 

 H. shurtleffii has been very rare in collections, only the type being known for thirty- 

 four years. Consequently it appeared to Mr. Neumoegen and myself that it might 

 prove an aberrant form of ccesonia. However we overlooked two important struc- 

 tural characters, not having the type for examination ; but this has recently been sent 

 to me by Mr. Henshaw. It agrees with my bred specimens, of which a full account 

 is presented herewith. The specimens are deposited in the U. S. National Museum. 



