( 188) 



tormiiiales in tiiiical angle in Anaf/nia, in Prndrmne it is vein 8 wliicli tevniiniites 

 there ; on the hiudwing veins G and 7 come from a point in Peridrome, and are 

 stalked together in A'luujnvi. The second joint oF the palpi is in Anai/iiid at least 

 half as long again as the third one, whilst in Peridrovie the second joint is only 

 one-fourth longer than the terminal one. Moreover, the autennal joints of Pei'idronie 

 are vertically broader than those of Amtf/nla; in the mcde of Peridrome the base of 

 each joint forms a short subcylindrical stem, distinctly visible under a lens, and 

 conseijuently the ventral subcariniform portions of two subseijuent joints when looked 

 at from the side are rather widely separate; wliile in Anarjnia that stem is very 

 short, and the ventral free portions of the joints are much closer together. 



These discrepancies in the characters of orbicularis and suhfascia not only 

 justify a generic separation of the two insects, but demand it, considering that, if 

 we in this case neglect such differences, we have consequently to do it also amongst 

 the other Arctioid and Lymantrioid moths. K. .1. 



Peridrome Walker. 



Iliipaii. Group 1. Peridmme Walker {nci- I'eritlroma Hiibner, Vti-:. beJ.-. Srhmrtl. p. 227, 18U)), 



Lep. Hel. B. .V. II. p. 444 (1854). 

 Aganopis Herrich-Schiiffer, Aiiss. Sdimelt. I. p. 12. 70 (leas') (.Vom. iim?.) : Bntl., Tr. ICiit. Snr. 



Luml. p. ?.ro (187.5) (.Vo)h. «»</.). 

 Amgnia, Moore (««• Walker, 1854), Gd. Lrj,. his. Uus. E. I. C. II. p. 290 (1859). 

 Ifypsa. A. (Agnno/m Butler), Snellen, Tijihchr. v. Enl. XXXI. p. 123 (1888). 

 Agano2>i«, Kirby, Cot. Lep. Uel. I. p. 384 (1891). 

 Pemh-nmi; Hampson, Mullis of huVm I. p. 49G (1892) {E.r p.) : Swinli., Cat. Lrp. Ilet. Off. 1. 



p. 82 (1892). 



Compare the notes under Anagnia. 



There is, as in Anagnia, only one species known of this genus, and that is 

 jirobablv (he reason why some entomologists objected to keeping Anagnia sabfasciu 

 VVlk. and Peridrome oo'bicularis Wlk. generically separate. 



P. orbicularis Wlk. occurs from Sikkim to Sambawa and the Philippine Islands. 

 The variability of the species is but slight. In the male the size of the black spots 

 on the imder.side of the wings is rather inconstant at every locality; the black spot 

 at the anal angle of the hindwing above is .sometimes alisent. The black spots on 

 the wings of the female also are not quite constant either in size or number. 



Our only female from Sambawa differs remarkably from all our oilier feitudes 

 in the following pardculars: the black discal spot on the forewing behind the middle 

 of the cell, above and below, stands farther towards the base; a line drawn to connect 

 the origin of vein 2 with the middle of the stridulating organ would be situate outside 

 the spot, while in the specimens from other localities it would stand at the basal side 

 of the sjiot ; the orange region of the forewing above and below does not extend 

 beyond the origin of veins 3 and 4; the black mark in the anterior angle of the cell 

 to the same wing below is larger, rectangular; the blackish brown border to the 

 hindwings is broader, having a width of 11 mm. at vein 7 and of 7 mm. at vein 4, 

 while the respective measurements are in Indian e.^iamples 9 and ;j nun., or less. 

 The 'nudes from i^ambawa do not seem to nic lu be different from typical orbi&daris 

 Wlk. 



P. orbicalari.s Wlk. is in the Tring .'\Iiiseum from Assam, ('alcutta, Andaman 

 Islands, Natuna Islands, I'ulu Laut (S.E. of Borneo), Palawan, and Sambawa ; 

 I)r. Staudinger lent us a ? from .lava. K. J. 



