314 NOVITATES ZOOLOOICAE XXVI. 1919. 



and give the appearance of a large thick patch of some lichenous growth. When 

 taking some of the number and the rest are disturbed, the scent emitted by 

 their telescopic glands behind the head is unpleasantly powerful. 



The pupae, though sometimes formed on the trunk or branches of an orange 

 or lemon tree, are often found spun up on walls and palings. As the positions 

 thus chosen at least admit of the growth of lichen, and as the pupa, though 

 variable in tone and depth of colour, is generally grey- brown with bluish green 

 abdominal segments, giving it a weathered look, it is admirably obscured and 

 easily passed by without notice. In form it is thick and blunt, and, though 

 rough, its " ears " and hump project very slightly. 



The butterfly, as is well known, is dimorphic, especially in the extent, or 

 in the entire absence, of the creamy patch on the forewing, and also in the degree 

 of cream and lilac pink adorning the hindwing. 



One of my Para-bred specimens has some deep cadmium scales supporting 

 the forewing patch. The fringe between the nervures is always narrow and 

 white ; and, though not properly taUed, the margin of the wing is prominently 

 dentated. 



P. isodorus. 



Of this species I have nothing to record beyond the capture of a single 

 undated butterfly in Para, carelessly regarding it at the time as only a specimen 

 of anchisiades. The large suffused white patch in the upper part of the forewing 

 and the arrangement of the pink marks in the hindwing clearly show that it 

 is not this. 



Doubtless it is an orange-feeder, and from its general similarity as a butterfly 

 to its close ally it may sometimes have been passed by unnoted, but I am sure 

 that it is not common. 



TOEQtTATUS GeOUP. 



P. torquatus torquatus (pi. ii. fig. 13, pi. iv. fig. 2). 



This last species of the Fluted PapLLios in Para appears to be very scarce 

 locally, though doubtless abundant farther afield. 



Twice only have I found the larva and once the egg, succeeding on each 

 ■occasion in breeding a female. The egg and a young larva were found on the 

 fresh green leaves of the lower boughs of a lemon tree in a garden near Souza, 

 and the other larva was taken on a small tangerine during a hasty walk through 

 the isle of Cafezal. 



I several times caught the male in 1909 in the Perene district of Peru, and 

 as it is lemon yellow and black, and not easily mistaken for anything else, I 

 am much surprised to have noticed this sex of the butterfly on but three occasions 

 in Para. The female, being black like a smaU-tailed anchisiades, with a variable 

 white patch on the forewing and a lilac splash on the hindwing, may, as with 

 the former species, have possibly escaped special notice. All these black-and- 

 red butterflies of Division II, in this case limited to the female sex, are popularly 

 regarded as mimics of some of the Aristolochia PapiUos, though the resemblances 

 generally and in points of detail are less striking and wonderful than that 

 presented by hyppason or ariaraihes, hereafter described. For torquatus always 



