( 477 ) 



distributed by Hiibiier aud otliers over a number of genera. Tliey agree, however, 

 so closely with one another in stn;cture that it would be quite arbitrary to treat 

 some under one, others under other generic terms. The only species which at 

 tirst sight has an aberrant look in the imago as well as in the larva state is 

 Ixlinuscae. It was chiefly the small ocellus on the fourth segment of the larva 

 which induced some authors to consider lahruscae generically distinct from F//olus 

 ( = Philampeli(s) and allied to Deilephila. The labruscae caterpillar is, however, 

 in the first stages even in colour a Pholus larva, the brown colour which makes 

 it similar to the larva of Pergesa elpenor appearing later. The structure of the 

 imago is essentially the same as in the otlier Pholus. The peculiar colour of 

 tlie imago is of no generic value, considering the great diiferences exhibited in 

 this respect by species like ancliemolus, adumsi, rAtis, acheiiwn. 



Key to the species : 



a. Hind wing, above, blue on disc ; abdomen 



with white stigmatical dots 

 Hindwiug, above, yellow on ilisc ; abdomen 



without white stigmatical dots . 

 Hindwing,aioiV', red, distal margin not red 

 lliudwing, above, greenish l)ufF, or creamy 



on disc, distal margin not red 

 Hindwing, above, with red distal margin . 



b. Forewing with conspicuous dark green 



antemedian band wliich is very ir- 

 regular distally, and witli an eipially 

 irregular large discal jiatcli 

 Autemedian band gradually i'ading away 

 distally, discal patch indistinct, under 

 surface almost entirely yellow 



c. Brown subapical patch of forewing con- 



tinued backwards at least to W . 

 Brown subapical patch of forewing not 

 extending lieyond U' . 



d. Forewing with pale band from base to a})ex 

 Forewing without pale liaiid from base to 



apex ....... 



e. Forewing with shar[ily marked even distal 



marginal band ..... 



Forewing without even marginal band ; 

 abdomen with a consj)icu(>us black 

 dorso-lateral triangular jiatch on two 

 of the middle segments 



Forewing without even marginal band, 

 abdomen without the two jiairs of 

 black patclies ..... 

 /. Forewing with a sharply marked paio 

 discal band from costal to inner margin 

 as in vitis ...... 



Forewing without this band . 



4'J'-', /'//. /iibritai-ae. 

 . b. 



e. 

 . d. 



\'i\. Ph. cupronnieri. 



420. Ph. i)horba.<<. 



41(J. Ph. tfiphon. 



41 o. Ph. achemoH. 

 419. Ph. faseiatm. 



41;}. Ph. adamiii. 



418. Ph. vitU. 



414. Ph. trniidineatus. 



■ .f- 



417. I'h. .sirenua. 

 • <J' 



