THE CANADIAN ENTOMOLOGIST. 167 



taken from the imago. What Agassiz calls "form" still unites these 

 various groups — a certain correspondence in outline and habit. Dr. 

 Packard seeks this in the shape of the clypeus, the piece between the 

 eyes, its relative proportion. In my first paper I have adopted this view, 

 that we have to do with descendants of a former complex and that we 

 may still unite the Spinner Moths under a common family title. Those 

 who differ may merely alter my sub-families into families. 



Sub-family Sarothripince. 

 The single genus Sarothripus Curt, was first referred to the Tortricidae, 

 then to the Noctuidae, and finally as part of the Nolince, the second sub- 

 family or group of the Bombycidce. In my new Check List the genus is 

 omitted, as I had no knowledge of our N. Am. species. The form of the 

 cocoon allies it to Nolo,. The moth is tortriciform and differs from Nolo, 

 decidedly in the form of the wings. The fore wings are elongate, sub- 

 quadrate, hardly widening outwardly with acute apices. The palpi are 

 much longer than the head, more erect and prominent than in Nola. The 

 caterpillar is 16-footed and makes a boat-shaped cocoon. The neuration 

 shows a relation to Nola and the Lithosians. As the hind wings have 

 only two internal veins, we see that the moth is not really a Micro, to 

 which group it was once referred. The fore wings have no accessory cell. 

 We shall come back to this accessory cell later and show its importance 

 and constancy in some other groups. The antennas are simple in both 

 sexes. The resemblance to Nola lies also in the want of ocelli, and this 

 character unites the three first groups, viz., Sarothripince, Nolince and 

 Lithosiince; again, the elongate palpi, which are, however, equally 

 squamous throughout. Of the European genera, Chlcephora, Halias and 

 Earias, we have no N. Am. species, and these probably form a distinct 

 group, Chlcephorince. Of Sarothripus we have one described from the 

 East and one from the West. Now the European species is very variable, 

 and whether we have more than one species, or whether our species is 

 really distinct from the European revayana, is not clearly made out. 

 Probably the earliest descriptions of forms of our Eastern Sarothripus 

 are those cited by Fernald, Am. Ent, I., 36, the Tortrix scriptana and 

 frigidana of Walker. 



Sub-family Nolince. 



The fore wings are broad, sub-trigonate, without accessory cell ; the 

 hind wings rounded, not as in the Sarothripince, with the outer margin 



