324 



to be considered as the original forms of the Si/mhoinht/rinae, 

 ethers (tlie Last tliree) on the other hand belong to the Syssphinyina. 

 The general pattern of setae is according to type I, in one sub-family 

 there are verrucae even in instar /, in ethers they appear hxter on. 



1. Sub-family Ghiphisinae is difficult to separate from some of 

 the NotodonUnae. Some hirvae are smooth, GJuphisia septenfrio- 

 nalis possesses glandiüar hairs (Packard 1895, PI. VIII, p. 91) 

 which are very shortly forked and afterwards disappear. 



According to fig. l/>, the pattern on the abdomen is: .s-. dorsalis, 

 s. dorsolateralis^ s. suprastiymalis, s. subdorsalis sup. and inf. 

 s. prostiymalis^ s. infrastiymalis which is placed very orally, 

 six s. hascdes, in instar /, whilst in instar II s. dorsolatendis and 

 s. subdorsalis inferioy disappear. The presence of these two setae 

 in instar / is very important. 



2. Sub-family Apatelodinae. The young larvae are covered with 

 long white setae, which are standing on verrucae according to 

 Type I, with i\ subdorsalis inferior (Packard 1895, PI. IX). 



3. Sub-family Pyyaerinae. Packard (1895) makes a distinction 

 between the colour of the primary and secondary setae in the 

 full-grown larvae. Packard (p. 105) thinks tliat this sub-family 

 is the most generalized one of the family. As far as I can see 

 on PI. X — XIV the pattern of the Datana species agrees with 

 Phahra bucej)hala. In connection with the origin of the stripes, 

 which I was able to observe in a Pygaerine, tliis is of much 

 importance, just as the presence of an llth abdominal segment. 



To outline the family in an easier way, I have put the description 

 of P/udera bucepliala L. after the discussions of the sub-families 

 p. 65 sqq. (On the origin of the stripes see chapter VII and VIII). 



Fracker (1915) doos not diseuss the setal pattern. 



4. Sub-family Ichthyurinae. IcJdhyura apicalis (Packard 1895, 

 PI. XV) lias setae, I. inclusa and I. albosiyiua (1. c. PI. XVI) 

 verrucae according to type I. 



5. Sub-family NotodonUnae. According to- Packard (1895, PI. 

 XVII — XXI II) the larvae possess setae according to type I. 



0. Sub-family Heteroca)npinae. Larvae sometimes with stema- 



