﻿150 Journal New York Ent. Soc. [Voi. iii, 



alternating and nearly in line (5) one segmental, (6) the other inter- 

 segmental, just above the lateral ridge, we shall call the lower segmental 

 and lower intersegmental lateral respectively. In the subventral space, 

 two intersegmental rows one above the other, the lower a little the 

 most posterior, will be called (7) the upper subventral and (8) lower 

 subventral ; finally between the latter may be developed (9) a small seg- 

 mentary row just above the ventral edge; and the smallest depressions 

 of all, only rarely seen, are (10) the stigmatal row, situated segmen- 

 tarily above and before the spiracles. Each of these depressions con- 

 tains one or more glandular centers which appear as small rounded 

 patches. They are more primitive than the areas themselves,* and may 

 appear when the latter are scarcely distinguishable. The dorsal 

 depressions correspond to four glandular centers, a paired row on 

 the anterior and posterior edge of each segment, consolidated interseg- 

 mentally; the other depressions seem to have but one center, f 



The setae on the warts vary greatly, but are only rarely primitive 

 setae. They will be specially described. The skin surface is covered 

 with minute points, which usually are converted into clear granules. 

 These also come under the series of special characters. In general the 

 depressed areas are smoother than the elevated portions of the surface. 



Cocoon. — The cocoon is composed entirely of the secretion of the 

 spinning organ. It is closely woven and forms a hard, compact, though 

 thin layer like stiff cardboard. It is so constructed that one end opens 

 in the form of a circular lid at slight pressure. This structure is similar 

 to that of the Megalopygidte, but is an improvement on it, being more 

 compact, definitely rounded and smooth. The lid is not visible in the 

 intact cocoon, as in the case of the lower family just mentioned. The 

 shape is rounded or elliptical and colored some shade of brown. 



*The largest of these glandular spots, namely the dorsal (i) and the lateral (4) 

 may be distinguished in the Megalopygid^e and even in the Pyromorphidae. In 

 Har7-isina coracina, which is before us, there are evidently present a series of 

 paired intersegmental grandular dots and a larger lateral row, showing as whitish 

 patches against the purplish markings. Thus the principal structural characters of 

 the Eucleidae, including the arrangement of the tubucles and their modification to 

 bear spines, the depressed areas, as well as the body shape, the retraction of the 

 head and even the peculiar modification of the abdominal feet are all foreshadowed 

 in the two families mentioned. Even the dislocation of the spiracle on joint 5 can 

 be observed in Harrisina, though the wart above it is normal. According to the 

 view here adopted these families are close to the ancestral forms of the Eucleidae, 

 leading up from a Tineid-like progenitor. 



"I" We shall illustrate the dorsal and lateral depressed spaces in the plate for 

 Tortricidia pallida, the subventral ones under Enliinacodcs scapha. 



