( 477 ) 



distributed by Hiibner and others over a number of genera. Tliey agree, however, 

 so closely with one another in structure that it would be quite arbitrary to treat 

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

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

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

 which iuduced some authors to consider lahruscae generically distinct from I'liolus 

 (= Pkilampelus) and allied to Deilephila. The lahruscae caterpillar is, however, 

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

 it similar to the larva of I'ergesa dpe.nor appearing later. The structure of the 

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

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

 this respect by species like anchcinolus, adamsi, nitis, acheiiiDii. 



Key to the species : 



(/. Hiudwiug, above, blue on disc ; abdomen 

 with white stigmatical dots 



Hindwing, above, yellow on ilisc ; abdomen 

 without white stigmatical dots . 



Hindwing, (t^ot'f, red, distal margin not red 



Hindwing, above, greenish buff, or creamy 

 on disc, distal margin not red 



Hindwing, above, with red distal margin . 

 L. Forewing with conspicuous dark green 

 antemedian baud which is very ir- 

 regular distally, and with au equally 

 irregular large discal i)ateh 



Antemedian band gradually fading away 

 distally, discal patch indistinct, under 

 surface almost entirely yellow 

 e. Brown subapical j)atch of forewing con- 

 tinued backwards at least to R^ . 



Brown subapical patch of forewing not 

 extending beyond R' . 



d. Forewing with jiah^ band fro;n base to apex 

 Forewing without jiale band from base to 



ai)ex ....... 



e. Forewing with sliar|ily marked even distal 



marginal band ..... 



Forewing without even marginal band ; 

 abdomen with a conspicuous black 

 dorso-laferal triangular patch on two 

 of the middle segments 



Forewing without even margiuiil band, 

 abdomen without the two ]iairs of 

 black patches . . . . . 

 /. Forewing with a sharjily marked pah; 

 discal band from costal to inner margin 

 as in filiii ...... 



Forewing without this band . 



A'^'i. Ph. lahruscae. 



. b. 

 . c. 



421. Ph. capronnieri. 



420. Ph. phorbas. 



410. Ph. ti/phon. 



415. /'//. iti'hi'iiuiii. 

 41U. Ph. faseiatun. 



413. /'//. adamsi. 

 4 IS. Ph. citis. 



414. /'/(. trniisliiwatiis. 



417. I'h. Kircmm. 



