— 7 — 



6. The most specialized and modified genus of the family, 

 represented by the species of Ccnira. 



Famii.v 2. — Cf.ratoca>[pid.?;. 



It is not inipr<)l)al)le tliat this family originated from the 

 N'otodontians or forms allied to them. It is divisible into two sub- 

 families. The most generalized members (^f the family are Dry- 

 (ha»i/>a, etc., and Anisofa, the larva of the former being the mcjre 

 simply spined. Sp/iin^i^icainpu may be regarded as a transitional 

 genus connecting Drvocavipa and Anisofa, with the third group 

 comprising Juuifs ami Citln'ronia. The foregoing genera form a 

 sub-family, which may be named the Ccratocampiiuc. 



The second sub-family we may call the A):;/iiii(e, the sole genus 

 being the European Aglia. In the venation of the wings Ag/ia 

 shows a most unexpected resemblance to that of Eac/cs impcrialis. 

 It will be remembered that the larva oi Aglia loses at its final molt 

 its spines, and becomes much like a Saturnian of the Telea group. 

 It thus connects the Ccratocampichc with the SatitrniiiiiC. 



!■" A M 1 1.V 3. S A 1 r RM 1 O.K. 



'I'his is a highly modified, and probably cpiite recent group, 

 whether we take into account the larvae or the imagines. During 

 the evolution of the group, probably from the Ceratocampidce, the 

 larvae, as shown by their life-history, underwent a change in shape, 

 from a rather long and slender form to a thick heavy larva. The 

 moths also underwent a process of degeneration, as seen in the 

 atrophy, total or partial, of the maxillae, and in the loss of veins in 

 their very large, but weak wings. This family also appears to be 

 a closed type, viz.: none of the higher or more specialized Bomby- 

 ces appears to have descended from it (unless possibly the Coch- 

 liopodids.) 



The genus Safuniia (in its restricted sense), represented by 

 the European .V. caipini and its allies, and our Pacific Coast 

 .v. mcndociiio and .V. galbina, is the most generalized one of the 

 family. This family may be divided into two sub-families: i. 

 Saturniime^ 2. Attaciiue. 



The North American genera of Attacimr may be arranged in 

 the following order; P/atysomia, Callosamia, Samhi, (.S". cynlhia), 

 TcIea, Actias. 



Famii.v 4. — HK.MiLF.uciDyt:. 



At i^resent both on account of its larval and adult characters 

 I am disposed to consider the Hcmili'uciiii of ('»r(.)te as most 

 probably of family rank. 



