92 eev. a. miles moss ojSt the 



white, especially the seventh, fainth edged above with violet and strong green fading 

 into yellow. Caudal horn very long, rough, and curved down at the tip. Anal flap 

 and claspers heavily spotted with dark sienna-coloured tubercles, a veiy distinguisliing 

 I'eature retained throughout the later stages of development. 



Fourth instav (fig. m). Blue-green as in tinal stage, or yellow-green as figured. 

 Oblique stripes in the latter instance entirely yellow and surmounted by a broad patch 

 of red, reminding one of a common variety of the British Smerhithus jjopuli. Horn 

 still very prominent, curved, rough, ochreous, and red on the upper surface. Spiracles 

 black. Anal flap and claspers lemon-yellow with red-brown tubercles. Legs of 

 same colour. 



Fifth instar (fig. n). Ground-colour blue-green, much wrinkled vertically. Leg- 

 segments, anal flap, and claspers decidedly warmer in tone. This form was invariably 

 found amongst the pungent, evil-scented leaves of the " negritillo," the dark foliage 

 afibrding an excellent protection. The yellow-green form may be repeated in this 

 instar, as being better adapted to the other food-plant, but I never found it thus. 

 With the bluish ground-colour, at any rate, the seven oblique stripes are once more 

 Avhite, bordered above with the merest suggestion of a pink line in places and heavily 

 relieved by parallel bands of dull green. Above these the colour inclines to apple- 

 green, and the leg-segments bear small yellow tubercles dorsally. Head emerald- 

 green, with the two distinct yellow face-lines maintained. Legs brown-pink. Spiracles 

 black, ringed with ochre. Caudal horn emerald-green and rough, but slender in 

 comparison with previous instar, gracefully curved and pointed. Anal flap and 

 claspers bright apple-green and heavily adorned with prominent tubercles of lighter 

 tone. 



Pupa (PL XV. tig. /'). — Dark red-brown, compact and glazed. Free proboscis- 

 sheath in form of a loop, thick and ridged transversely, but short in comparison with 

 Frotoparce, and not prominently curved. Cremaster moderate, with two small points. 



S E s 1 1 N iE. 



283. PsEUDOSPHiNX TETiiio. (Plates VIII. ; XV. 7.) 

 R. & J. p. 353. 



General Distribution. — Tropical and subtropical America : Florida, West Indies, 

 southward to Paraguay and Southern Brazil. Very common. 



In reality a species of great abundance in the Interior, though of spasmodic 

 appearance on the seaboard, the moths of both sexes turning up in some number, 

 often in perfect condition, and after irregular intervals of complete absence, at the 

 electric arc lamps of both Lima and the mining centres of the higher Andes. It only 

 became apparent towards the close of my stay that this species, like Phohis labruscce, 

 is not a native of the coast, but a migrant from the hot vegetated region east of the 



